If a tennis ball bounces on the floor three times. if each time it loses 22% of its energy due to heating, the height it will rise after the third bounce, provided we released it 3.1 m from the floor is 1.4725 m.
What is energy loss due to heating?
The deliberate or accidental transfer of heat from one material to another is known as heat loss. Radiation, convection, and conduction can all contribute to this. When a component comes in direct touch with another component, whether it is insulated or not, conduction frequently happens. When a pipe, electric heater, or other component has an air barrier surrounding it, convection occurs. When there is no touch and heat is transmitted as waves, radiation results.
given,
Height = 3.1 m
Energy loss = 22%
Let, the total energy be equal to 1 unit
Balance of energy after first collision = 0.78 x 1 unit
= 0.78 unit
Balance after second collision = 0.78 ^2 unit
= 0.6084 unit
Balance after third collision = 0.78 ^3 unit
= 0.475 unit
Height achieved by the third collision will be equal to energy remained
H be the height achieved after 3 collision
0.475 ( m g h) = m g H
H = 0.475 x h
H = 0.475 x 3.1 m
H = 1.4725 m
Therefore,
It will rise up to 1.4725 m after the third bounce.
Complete Question
A tennis ball bounces on the floor three times. if each time it loses 22% of its energy due to heating, how high does it rise after the third bounce, provided we released it 3.1 m from the floor?
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3.if kiis 44 nm for (-)d9-thc and 4350 nm for cbd what is the binding free energy difference, in kj/mol?
The correct answer is 0.00981 kJ/mol.
Every object we encounter has a binding force, and the energy that holds them together is the binding energy. The binding energy is the least amount of energy necessary to remove an electron, proton, or neutron from the nucleus. A nucleus contains electrons and protons that are strongly bound by energy.
Free energy of binding can be calculated using formula, Gbinding = dE coluombic + dEvdw + dGhyd. -TdS where Evdw+Ecoulombic is protein ligand interaction, dGhyd is change in hydration energy.
dS is entropy. dG hydration is Gpolar+Gnon polar. Inhibition constants are given for CBD and
THC = 4350nm, and 44nM. So,
dG = Ki + Ki' = 44+4350 = 4394 and
in kJ/mol = NahC/4394 = (6.022x10^23x6.626x10^-34x3x10^8)/4394 = 0.00981 kJ/mol
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A space shuttle is flying north at 6,510 m/s. It
then begins accelerating at 28.4 m/s2 directly
northeast to properly align its path towards
orbit around the Earth. After 60.0 s, what is
the direction of its velocity?
The direction of velocity is 81.12°
Given that,
Initially the space shuttle is flying North at 6510 m / sNext 60 seconds, it accelerates at 28.4 m / s² directly North-East.Velocity of the North-East travel = [tex]a_{NE}[/tex] * [tex]t_{NE}[/tex] = 28.4 * 60 = 1704 m / sSplitting the North-East travel into its horizontal and vertical components,Horizontal component = 1704 cos° 45 = 1204.9 m / sVertical component = 1704 sin° 45 = 1204.9 m / sThe vertical components are the north travel and the the vertical component of North-East travel. Total vertical velocity = 6510 + 1204.9 = 7714.9 m / sTotal Horizontal velocity = 1204.9 m / sThe resultant velocity makes a right angled triangle with the magnitude of total vertical and horizontal velocity.Since it is a right angled triangle,
tan θ = Opposite side / Adjacent side
tan θ = Total vertical velocity/ Total horizontal velocity
tan θ = 7714.9 / 1204.9 = 6.4
θ = [tex]tan^{-1}[/tex] ( 6.4 )
θ = 81.12 °
Therefore, the direction of its velocity is 81.12° with respect to x - axis.
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As a giant cloud of gas collapses due to gravity, you would expect its rate of rotation to.
Answer:
increase!!!
M V R describes the angular momentum of mass M
If R is decreased for a given mass M then the velocity must increase to account for the angular momentum being a constant (conserved).
1. If a rock is dropped from a height and hits the ground in just 1 second, the speed at impact is 10 m/s. What would
happen to the speed if it is dropped from a higher height?
a. Its final speed would remain the same because its rate of acceleration would remain the same.
b. Its final speed would increase because the acceleration due to gravity remains the same.
c. Its final speed would remain the same because its rate of acceleration would decrease.
d. Its final speed would increase because the acceleration due to gravity would decrease.
The speed of a bullet train is measured to be 312.0 mph ± 3.9 mph. What is the percent uncertainty in this measurement?
Answer: 1.3%
The speed of a bullet train is measured to be 312.0 mph ± 3.9 mph. What is the percent uncertainty in this measurement?(1 point) 1.3%
I already did the first slide but it ahs to do with the second one. Please answer in complete sentences
Answer:
huhu
chuba bi miayang yo
trip rp rrip trip
Explanation:
how are things going with your family in the car with the family in because or am we supposed for a car to stay at the airport and get a taxi
How many grams of baking soda are in a 25.5 kg bag?
2)
2H₂O → 2H₂ + O₂
Describe the mass of the reactants and products given the balanced chemical reaction.
Reactants are substances that are present at the beginning of a chemical reaction.
Products are the substance(s) to the right of the arrow. A substance that remains after a chemical reaction is complete is known as a product.
Consider the balanced chemical equation:
2H₂O → 2H₂ + O₂
Hydrogen and oxygen are the reactants, and water is the product in the balanced equation.
The reactants and product symbols and formulae are known from the aforementioned equation.
One oxygen molecule and two hydrogen atoms unite to form two water molecules.
The ratio of reactant to product is 2 : 1 : 2.
The total mass of products is equal to the total mass of the reactants according to the law of conservation of mass.
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Given that vector a b = c, and that lal lbl = lcl, how are vectors a and b oriented with respect to each other?
Vector a b = c, and that |al |b| = |cl, vectors a and b oriented with respect to each other because they are perpendicular to each other.
What is a vector?A vector is an object that has both magnitude and a direction. Geometrically, we can picture vector as a directed line segment, whose length is the magnitude of the vector and with an arrow indicating the direction. The direction of vector is from its tail to its head.
Two vectors are the same if they have same magnitude and direction. This means that if we take a vector and translate it to a new position (without rotating it), then vector we obtain at the end of this process is the same vector we had in beginning.
Two examples of vectors are those that represent the force and velocity. Both the force and velocity are in a particular direction. The magnitude of vector would indicate the strength of the force or the speed associated with the velocity.
We denote vectors using the boldface as in a or b. Especially when writing by hand where one cannot easily write in boldface, people will sometimes denote vectors using the arrows , or they use the other markings. We won't need to use the arrows here. We denote magnitude of the vector a by |a|. When we want to refer to a number and stress that it is not a vector, we can call number a scalar. We will denote scalars with the italics, as in a or b.
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REALLY NEED HELP, DUE TODAY!!!
1. How will an object at rest be affected if multiple forces working on it are opposed but unbalanced?
Motion will either be created, stopped, or changed.
The acceleration of the object will increase
The unbalanced forces will cause the object to produce a humming sound
The mass of the object will decrease.
2. A blue car weighing 1,302 kg is accelerating forward at a rate of 4 m/s2. What is the forward force of the car?
325.5 N
1,298 N
1,306 N
5,208 N
3. Two people collide on a busy city street. What information is needed to calculate the force one of the people exerts on the other person?
The velocity of each person
The speed of each person
The mass and acceleration of each person
The location of the collision
4. (don't need)
5. Two bowling balls of different masses collide while accelerating at 1.875 m/s2. The first ball, rolling to the right, weighs 7 kg. The second ball, rolling to the left, weighs 4 kg. What force does the bowling ball weighing 7 kg exert on the bowling ball weighing 4 kg?
8.875 N to the right
3.73 N to the left
7.5 N to the left
13.125 N to the right
Answer:
1.An object at rest has zero velocity - and (in the absence of an unbalanced force) will remain with a zero velocity. Such an object will not change its state of motion (i.e., velocity) unless acted upon by an unbalanced force.
3.Let speed of balls are v
1
and v
2
.
There is no external force acting, momentum will be conserved.
m
1
u
1
+m
2
u
2
=m
1
v
1
+m
2
v
2
⇒m×6−m×6=mv
1
+mv
2
⇒v
1
=−v
2
Coefficient , e=−
u
1
−u
2
v
1
−v
2
⇒
3
1
=−
6+6
v
1
−v
2
⇒v
1
=−2m/sWhen two objects with the same mass collide, Newton's laws tell us that they will accelerate the same amount but in opposite directions.
Collision Forces - 5/5
1. A) Motion will be either created, stopped or changed.
2. D) 5,208 N
3. B) the mass and acceleration of each person
4. C) balanced forces
5. B) 13.125 N to the right
Hope this helps ya out peeps!
If the connection to the resistor is completed at time tt = 0, what is the value of tt when the current has the value specified in part a?
Finding the initial and final values for the quantity that the capacitor or inductor opposes changing—i.e., the quantity that the reactive component is seeking to maintain constant—is the first stage.
This amount is voltage for capacitors and current for inductors. This amount is to be used as the "beginning" value because when the switch in a circuit is closed (or opened), the reactive component will try to keep that quantity at the same level as it was before the switch transition. This quantity's ultimate value is whatever it will be after an infinitely long period of time.
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What happens to the width of the central maximum if the wavelength is increased?
The width of central maximum increases if the wavelength is increased.
What is the width of the central maximum?The width of the central maximum is simply the distance between 1st order minima from the center of the screen on both sides. Thus, the central maximum becomes twice as wide if the slit width a becomes half as wide.
How is central maxima affected?For one slit experiment, the size(angular width) of the central maximum is given by a 2 λ a , where a is that the slit width. therefore the width of the central maximum is directly proportional to the wavelength of light and inversely proportional to slit width.
What is central maximum of a wave?A central maximum is that the brightest central zone of a diffraction pattern on the screen. The central maximum has the utmost intensity and widest of all the other diffraction fringes
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motion observed from a particular frame of reference is
Answer:
one in which the motion of a particle not subject to forces is in a straight line at constant speed
Explanation:
I searched this on the internet
At a certain temperature, the phph of a neutral solution is 7.68. what is the value of kwkwk_w at that temperature?
Kw = 4.36×10^-16 is the value of kw at temperature when the ph of a neutral solution is 7.68.
The formula for Kw is:
Kw= [H]*[OH]
where [H] and [OH] are concentrations
We are given the pH so we can calculate the [H] concentration from the formula:
pH=-log[H]
[tex]P_{H} =-log_{10} [H^{+} (aq)][/tex]
[tex]-P_{H} =log_{10} [H^{+} (aq)][/tex]
[tex][H^{+} (aq)]=10^{-P_{H} }[/tex]
[tex][H^{+} (aq)]=10^{-7.68}[/tex]
[tex][H^{+}(aq) ]=[/tex]2.089×[tex]10^{-8}[/tex]mol [tex]dm^{-3}[/tex]
In neutral solution, [H] = [OH],
therefore: [OH]=2.089×10^-8M
Calculating Kw:
Kw = (2.089×10^-8M) *(2.089×10^-8M)
Kw = 4.36×10^-16
What is the pH of a neutral solution at 100 degrees Celsius, where equals?pH + pOH = 14.00 (at 25°C) for any neutral solution with pH=pOH=7. At 100°C, the kw for water is 4.991013. Determine the pKw of water at this temperature, as well as the pH and pOH of a neutral aqueous solution at 100°C. pH and pOH values should be reported to two decimal places.To learn more about value of kw refer to
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an infinitely long charged rod has uniform charge density of λ, and passes through a cylinder (gray). the cylinder in case 2 has twice the radius and half the length compared to the cylinder in case 1.
To compare the magnitude of flux through the surface wherein the cylinder in 2 has twice the radius and half the length compared to the cylinder in case 1 and this comparison in magnitude is given as ϕ= 2ϕ.
How would you define charge density?The charge density can be defined as a measurement of the amount of electric charge that is present per unit of surface area, body volume, or field.
The amount of charge that is held in a specific field is determined by the charge density. It is absolutely possible to calculate charge density of an object in terms of length, area, or volume.
How can you determine a rod’s charge density?If q is taken as the charge and l is the distance that it travels, then q/l is the formula for the linear charge density, and the S.I. Coulombs per meter (cm1) is the unit used to measure linear charge density.
What is the unit of charge density?The general response is most conveniently expressed in terms of the linear charge density, which is equal to Q/L for a finite rod of length L and total charge Q.
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If a person practicing yoga for one hour burns 285 kilocalories (kcal), how many joules (j) of energy have they burned?
The person that practicing yoga for one hour burns 285 kilocalories (kcal) burned: 1192440 j of energy
To solve this problem the we have to do the conversion of units with the given information.
Information about the problem:
energy =285 kilocalories (kcal)energy expressed in joules (j) = ?1 kilocalorie (kcal)= 4184 joules (j)By converting the energy units from kilocalories (kcal) to joules (j) we have:
energy =285 kcal * 4184 j/ 1 kcal
energy = 1192440 j
What is unit conversion?It is the transformation of a value expressed in one unit of measurement into an equivalent value expressed in another unit of measurement of the same nature.
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Find the lengths of the sides of the triangle pqr. is it a right triangle? is it an isosceles triangle?
NO, It is an Right Triangle
p(2 , - 1 0) Q ( 4, 1, 1) R( 4, -5, 4)
PQ2 = ( 2 -4)^2 + (-1-1)^2 +( 0-1)^2
PQ^2= (4 + 4 +1 )=9
PQ = 3
QR^2 = ( 4 - 4)^2 + ( 1 +5)^2 + ( 1-4 )^2
= 0 + 36 + 9 =45
QR = √45 =3√5
RP^2 = ( 4-2)^2 + ( -5 +1)^2 + (4-0)^2
= 4 + 16 + 16 = 36
RP = 6
LENGTH OF SIDES ARE 3 ,6 , 3√5
and ajsoPQ^2 + RP^2 = 9 + 36 = 45 =QR^2
PQR is a right angle triangle
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A boat travels 6 m/s across a river. The current pushes downstream at 8 m/s. If the river is 104 m wide, then:
explain the importance of body temperature regulation
Answer:
is an early warning sign of infection
Explanation:
it allows organs and bodily proccess to work effectively
A ball is launched at some angle from horizontal toward a target some distance away on the ground. Neglect any effects due to air resistance. Where would the speed of the ball be the slowest?.
Answer:
at the vertical change
Explanation:
i believe this is right
For a moon orbiting its planet, rp is the shortest distance between the moon and its planet and ra is the longest distance between the moon and its planet. what is a moon's orbital eccentricity if rp is equal to 0.27ra?
e = 0.57 is the moon's orbital eccentricity
You may determine the ellipse's eccentric formula by using
e = r a - r p / r a + r p
The distance r a between the moon and its planet is the greatest.
r p=0.27 The shortest distance between the moon and its planet is r a.
Then, e = r a - r p / r a + r p
e is defined as (r a - 0.27 r a) / (r a + 0.27 r a).
e = 0.73r a / 1.27 r a
e = 0.57
The eccentricity of a conic section expresses how much it resembles a circle. Every conic section has this distinctive parameter, and conic sections are only said to be identical if and only if their eccentricities are the same. A conic section's eccentricity is a non-negative real integer that specifically describes its shape. Formally speaking, two conic sections are comparable if and only if their eccentricities match. The eccentricity can be thought of as a measurement of how far a conic section strays from being round.
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Two+rocket+ships+approach+a+space+station+at+80%+of+the+speed+of+light.+each+pilot+observes+the+other+ship+approaching+at+____+the+speed+of+light.
Two rocket ships approach a space station at 80% of the speed of light. Each pilot observes the other ship approaching at 98% the speed of light.
What is the "Fastest" Speed of Light?Light moves at a constant, finite speed of 186,000 miles per second. A traveler traveling at the speed of light would circumnavigate the globe 7.5 times in one second. In comparison, a traveler in a jet aircraft traveling at 500 mph would cross the continental United States once in 4 hours.The speed of light in a vacuum, denoted c, is a universal physical constant that is important in many fields of physics. The speed of light c equals 299,792,458 meters per second.The speed of light is shared by all forms of electromagnetic radiation, including visible light. Light and other electromagnetic waves appear to propagate instantly for many practical purposes, but their finite speed has noticeable effects over long distances and with very sensitive measurements. Starlight seen from Earth long ago left the stars, allowing humans to study the history of the universe by viewing distant objects.
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The electric field at the surface points radially outward and has a magnitude of 8300 n/c. if r1 = 0.5 m, r2 = 1.9 m, and a = 3, find the value of the charge q, in coulombs?
The value of charge in coulombs is 0.9 × 10—⁹ coulombs.
Radius 1 of the surface = 0.5 m
Radius 2 of the sphere = 1.9 m
Area of the surface = 3
The magnitude of the electric field at the surface = 8300 N/C
The electric flux through a surface is,
[tex] Electric \: flux=Electric \: field \: \times area \: of \: the \: surface[/tex]
[tex]Φ = E \times S[/tex]
[tex]Φ = EScosθ[/tex]
[tex]Φ =E \times 4 \times \pi \times r ^{2} [/tex]
According to Gauss, the net electric flux is,
[tex]Net \: electric \: flux = \frac{1}{E _{0} } \times charge \: enclosed[/tex]
[tex]Charge \: enclosed = 4 \times \pi \times E _0 \times a \times r ^{3} [/tex]
[tex] = \frac{1}{9 \times 10 ^{9} } \times 3 \times (1.4) ^{3} [/tex]
[tex] = 0.9 \times 10 ^{ - 9} \: C[/tex]
Therefore, the value of charge in coulombs is 0.9 × 10—⁹ coulombs.
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An electrical device is listed as 3,000 watts. approximately how many horsepower is this?
By unit conversion, the power is 4.023 HP.
We need to know about unit conversion to solve this problem. The unit conversion can be used to convert a unit to another unit. It can be defined as
a = xb
where a is unit a, b is unit b and x is the constant of conversion.
From the question above, we know that
P = 3000 watts
unit conversion
(1 HP = 745.7 watts)
Convert the unit conversion
1 HP = 745.7 watts
divide by 745.7
1/745.7 HP = 1 watts
Convert the aspirin power to horsepower
P = 3000 watts
P = 3000 x 1/745.7 HP
P = 3000/745.7 HP
P = 4.023 HP
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Write a differential equation for the concentration of the chemical in the pond at time t. hint: the concentration is c = a/v = a(t)/106
The differential equation for the concentration of the chemical is given by dc/dt = (3/10⁶)(1 - 100c)
Suppose that a(t) is the amount of chemical in the pond at time t.
So, a'(t) = rate of chemical inflow - the rate of chemical outflow.
So, da/dt = (0.01)300 - (a/10⁶)300
So, da/dt = 3 - 3a/10⁴
Now,
Since, c = a/v
Then, c' = a'/v
So, c' = (3 - 3a/10⁴)/10⁶
Or, c' = 3 (1 - a/10⁴)/10⁶
So, dc/dt = 3/10⁶ (1 - cv/10⁴)
So, dc/dt = (3/10⁶) (1 - 100c)
Therefore the differential equation for the concentration of the chemical is dc/dt = (3/10⁶)(1 - 100c)
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Using your model create the following scenarious first quarter moon
The first quarter in which half the Moon appears illuminated, occurs when the Moon is at a right angle with respect to the Sun when viewed from the Earth.
How do moon's different illumination occur?The Moon is a non illuminating celestial object and doesn't have its own light but reflects the light of the sun and with change in angle between moon and Sun the different phases of the moon appear as seen from earth.
Given:
The Moon is in the first quarter of illumination.
In the first quarter of the moon the only one-fourth of the sun is illuminated and is observable from earth.
For this to happen only the visibly i.e. one-fourth of the moon should be reflecting back the light of the sun.
For this to happen the moon shouldn't be completely opposite to the sun behind the earth. But rather at right angles with respect to the sun when seen from earth.
Therefore, The first quarter in which half the Moon appears illuminated, occurs when the Moon is at a right angle with respect to the Sun when viewed from the Earth.
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at perigee, the moon is 364,000 km from earth. at apogee, it is 407,000 km away. how many times larger does the moon appear to us during perigee than at apogee? the linear diameter of the moon is 3,480 km.
The moon appears 1.1153 during perigee than at apogee.
What is perigee?Perigee is the point at which the moon is nearest to the Earth each month.
The points of apogee and perigee varies throughout the year.
Apogee is the point at which the moon is farthest to the Earth each month.
from the data given,
perigee= 364000km
Apogee= 407000km
diameter= 3480km
p/a = 406,000/364,000
= 1.1153.
Thus, the moon appears 1.1153 during perigee than at apogee.
In conclusion, it has been scientifically found that in periods of four years, lunar perigees and apogees fall on the same or nearly the same calendar dates.
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What do you observe when you hold your largest plastic shopping bag square between the light source and the wall
The thing i observe if I hold a largest plastic shopping bag square between the light source and the wall is that since the plastic is Translucent, it allow some measures of light to pass through it. When light hits the translucent materials, since it is big and little thicker, only some of the light went through them.
What happens to light when it travels through air and meets an opaque surface?As light travels through air as well as into a clear material (such as glass), it speed is altered, and light is said to be reflected and also refracted by the said glass
Note that Light can pass through some kind of materials, such as glass, water, plastic that is clear and transparent materials.
Therefore, The thing i observe if I hold a largest plastic shopping bag square between the light source and the wall is that since the plastic is Translucent, it allow some measures of light to pass through it. When light hits the translucent materials, since it is big and little thicker, only some of the light went through them.
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light travels through space at a speed of 3.0 × 108 m/s. a space probe is traveling away from earth at 2.5 × 108 m/s when one of its spotlights is turned on. what speed would an observer on earth measure for the light from the spotlight
The speed of light in a vacuum is the same for all frames of reference.
so "Light travels through space at a speed of 3.0 x 10^8 m/s."
frame of reference is a fixed background surrounding an object, assumed to be at rest and in a fixed positionThe usual frame of reference for the motion of most ordinary objects is the surface of earthn Newtonian physics, all motion must be defined in terms of a reference frame Relative Motionspeed of light is constant in all frame of refrencespeed of light does not change even while change the medium of propagation, be it either denser to lighter or lighter to denserTo know more about frame of reference visit : https://brainly.com/question/1217098
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if you are driving 120 km/h along a straight road and you look to the side for 2.2 s , how far do you travel during this inattentive period?
During this inattentive period, the distance traveled is 73.33 when the speed is 120 km/h and the time taken is 2.2 s.
What connection exists between time, distance, and speed?Every moving object travels a particular distance over time. These two factors enable us to determine the speed. The frequency of displacement is the sole determinant of speed. The complete mobility of an object, regardless of direction, will be its distance. No matter where an object originates or finishes, distance measures how much ground it has travelled. A process, an action, or a condition's duration is the amount of time that can be measured or quantified. Speed is the rate at which an object travels along a path over time, whereas velocity is the speed and direction of an item's motion. In another sense, velocity is a vector, whereas speed is a scalar value. There is a formula that connects these three things. Speed can be thought of as a gauge for a body's rate of motion. The distance covered in a single unit of time is how it is defined.
Speed = Distance/ Time
We are given Average speed, = 120 km/h=(120 * 1000)/3600=33.33 m/s
Time, t=2.2s
Now speed = Distance/ Time
⇒ Distance = speed * time=33.33*2.2=73.33
Thus distance traveled is 73.33 m
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