Answer:
-3.33m/s^2
Explanation:
From the graph, we can read that the object between segments C and D changed its velocity from 10m/s to 0m/s over 3 seconds.
(0m/s - 10m/s) / 3s = -10 / 3 * m/s^2 = -3.3333... m/s^2
Consider a sr-71 operating at its maximum service ceiling. what region of the atmosphere is it flying in?
The sr-71 operating at its region of the atmosphere is it flying in -
take into account an sr-seventy one working at its maximum service ceiling.
SR-71 on the top of its carrier ceiling. The troposphere, a layer underneath the stratosphere, is where some army aircraft, which include the SR-71 and the U-2 as a coelos numerous industrial aircraft, fly. "inside the troposphere, the temperature typically falls with altitude seeing that troposphere's gases soak up little or no warmness," says Antuvallyis accurate due to the fact the temperature of the incoming solar radiation rises with altitude within the stratosphere and stays steady in the lower element three. goes-17 is an environmental satellite tv for pc that is intended to function 35,790 kilometers above the earth.To learn more about SR-71 here:-
https://brainly.com/question/10648916?referrer=searchResults
#SPJ4
a platinum bar measures 5.0 cm long. 4.0 cm wide and 1.5 cm thick. it has a mass of 700.0 grams
A. calculate the volume of the platinum bar
B.calculate the density of the platinum bar
does any body know the answer im stumped but YOU HAVE TO GIVE AN EXPLANATION
Answer:
Your answer is p=23.33 g/cm^3
Explanation:
We have that for the Question "a platinum bar measures 5.0 cm long, 4.0 cm wide and 1.5 cm thick. it has a mass of 700.0 grams" it can be said that The density of the platinum bar is
p=23.33g/cm^3
From the question we are told
a platinum bar measures 5.0 cm long, 4.0 cm wide and 1.5 cm thick. it has a mass of 700.0 grams
Generally the equation for the density is mathematically given as
p=M/V
therefore
P=M/V
P=700/5x4x1.5
p=23.33 g/cm^3
11. What a layer of sedimentary rock or soil called
Answer:
Sedimentary rocks are deposited in layers as strata, forming a structure called bedding. Sedimentary rocks are often deposited in large structures called sedimentary basins.
Explanation:
Answer: Strata
Explanation: Strata are layers of rock, or sometimes soil. In nature, strata come in many layers. It is a term in sedimentary and historical geology; the singular is stratum. The study of strata is called stratigraphy.
Why is light not classified as a matter?
Answer:
Probably because it's not anytype of solid or liquid and it's not a gas
Explanation:
You fire a beam of light at a piece of metal and determine that electrons are emitted with 2. 0 ev of energy. You increase the wavelength of the light and determine that electrons are still being emitted. What else is true?.
The correct answer is option B: there is a decrease in the speed of the emitted electrons.
If we increase the wavelength of the light and determine that electrons are still being emitted. The true statement is that there is a decrease in the speed of the emitted electrons.
The relation between wavelength and the energy of a light photon is given by the following equation;
E = hc / λ
Here 'E' represents the energy of light photons, h is the plank's constant, and c is the light speed where λ is the wavelength of the light.
From the equation, we can see that the energy of photon and wavelength have an inverse relationship with each other.
So, as the wavelength increases, the value of energy decreases.
If the energy decreases then the speed and K.E of the emitted electron also decrease.
If you need to learn more about the wavelength of light click here:
https://brainly.com/question/10728818
#SPJ4
Despite life not being possible on earth upon the demise of our sun, there will always be somewhere in our universe where it is possible.
a. true
b. false
Despite life not being possible on earth upon the demise of our sun, there will always be somewhere in our universe where it is possible.
This statement is true.
What is universe ?Everything exists in the cosmos. It encompasses all of space as well as the matter and energy that it holds. Even time is a part of it, and you are obviously a part of it. Along with the other planets and their numerous moons, Earth and the Moon are all components of the cosmos.
In general, the universe can take one of three forms: a flat universe, a spherical or closed universe (positive curvature), or a hyperbolic or open universe (negative curvature).
The clichéd response is that since space and time were both formed at the big bang, which occurred approximately 14 billion years ago, there is nothing outside of the cosmos. Beyond the observable universe, which may be 90 billion light years vast, however, is where most of the universe exists.
To learn more about universe from the given link:
brainly.com/question/21458024
#SPJ4
if the magnitude of charges on these source charges is arranged in a descending order, which is the correct sequence?a. a, b, c, db. b, d, c, ac. c, a, b, dd. d, b, a, ce. b, c, a, d
The magnitude of the source charge is indicated by the outward arrows. The greater the number of arrows, the greater its strength. This is because each arrow represents the electrical force exerted by the source. If we add up all the arrows present, the electric force will be even greater. The descending order of the answers is C > A > B > D.
What is electric charge?Electric charge is a physical property of matter that imparts a force on charged matter when placed in an electromagnetic field. Charge can be positive or negative (typically carried by protons and electrons, respectively). Similar charges repel and dissimilar charges attract. An object with no net electric charge is said to be neutral. Early knowledge of how charged matter interacts, now called classical electrodynamics, is still accurate for problems that do not require consideration of quantum effects. Charge is a conserved property. The net charge of the isolated system (the amount of positive charge minus the amount of negative charge) does not change. It is denoted by Q.
To know more about electric charge , visit:
https://brainly.com/question/14896579
#SPJ4
A particle starting from rest, travels with a = 5 m/s2. what is the distance traveled in 10 sec?
a. 25 m
b. 50 m
c. 125 m
d. 250 m
The distance traveled in 10 sec is 250m
Solution and conceptGiven:
Initial velocity, u = 0
Acceleration, a = 5 m/s2
Time elapsed is t = 10 seconds
The distance traveled in 10 seconds by the particle when accelerating at 5 m/s2 is given by,
[tex]x= ut + \frac{1}{2} at^{2}[/tex]
Putting the values,
x= 0 x 10 + [tex]\frac{1}{2} (5) (10)^{2}[/tex]
x= 250 m
To know more about distance concept, visit:
https://brainly.com/question/17408507
#SPJ4
A friend of yours tells you that electric potential and voltage are the same thing. should you correct her, and if so, how?
I’d correct her in this way.
Electrical potential is the amount of energy acquired or lost per unit of charge when a charge is moved away from a reference point where the potential is assumed to be zero. Voltage is the difference in potential between any two places, where the potential may or may not be zero.
Suppose that point A's potential is 10000 volts and point B's potential is 10100 volts with respect to a stated reference point that is sometimes an infinite distance away. So 100 volts of voltage will exist between B and A.
Follow the link below to learn more on potential difference or voltage
https://brainly.in/question/229285
#SPJ4
A car is moving with an acceleration of 8.5 m/s^2. It starts from rest and travels when the force of 7000 N is applied. What is the mass of the car?
the mass of the car is 823.52 kg.
When a force is applied to a body, the momentum's magnitude, direction, or both can change. One of the most significant laws in all of physics is Newton's second law. F = ma, where F (force) and a (acceleration) are both vector values, can be used to represent a body whose mass m is constant. We can deduce a relationship between forces F and acceleration a from Newton's second law (via mass). The F is always the RESULTANT force on the item, and that is the important part. F=0 if there is no acceleration of the item.
Due to that,
F=7000 N
a=8.5 m/s²
we know that
F=ma
mass= 7000/8.5
=823.52 kg
Consequently, the mass of the car is 823.52 kg.
Learn more about Acceleration here-
https://brainly.com/question/12550364
#SPJ9
A 30-g car rolls from a hill 12 cm high and is traveling at 154 cm/s as it travels along a 275 cm horizontal track. What is the momentum of the car?.
The momentum of the car is 4620 cm/s.
The momentum of an object is defined as the product of the mass of the object and its velocity. Momentum is denoted by the symbol 'M'. It is presented in the unit meter per second. Velocity is defined as the distance divided by time. It is also presented in the unit meter per second.
Mass of the car = 30 g
Height of the hill = 12 cm
Speed of the car = 154 m/s
Distance traveled by car = 275 cm
The momentum of the car is,
Momentum = Mass × Velocity
M = m × v
= 30 × 154
= 4620 cm/s
Therefore, the momentum of the car is 4620 cm/s.
To know more about momentum, refer to the below link:
https://brainly.com/question/14283213
#SPJ4
Suppose you are looking at two graphs of velocity vs time. The first graph is of an object undergoing constant positive acceleration of 2 m/s², and the second graph is of an object undergoing constant positive acceleration of 4 m/s². How do the graphs compare?(1 point)
A. Both graphs are linear with positive slopes, but the second graph has a steeper slope than the first graph.
B. Both graphs are constant, horizontal lines, but the second graph has a higher constant line than the first graph.
C. Both graphs are linear with positive slopes, but the first graph has a steeper slope than the second graph.
D. Both graphs are constant, horizontal lines, but the first graph has a higher constant line than the second graph.
Answer:
Both graphs are linear with positive slopes, but the second graph has a steeper slope than the first graph. I just took the quick check so I know the answer from Connexus.
Explanation:
Since the first graph goes over 1 second and up 2 meter/s then that would mean it is less steep than the graph that goes over 1 second and up 4 m/s; so this rules out option A. Now for C and B, it says a constant "Horizontal line" which would be wrong for the case because the slopes are not going sideways, the slopes in the question are going in a slanted vertical constant motion. I hope this helps!
Both graphs are linear with positive slopes, but the second graph has a steeper slope than the first graph, therefore the correct answer is option A.
What is acceleration?
The rate of change of the velocity with respect to time is known as the acceleration of the object. Generally, the unit of acceleration is considered as meter/seconds².
As given in the problem Suppose you are looking at two graphs of velocity vs time.
The first graph is of an object undergoing constant positive acceleration of 2 meters/second², and the second graph is of an object undergoing constant positive acceleration of 4 meters/second².
The second graph has a higher slope than the first, but both graphs are linear with positive slopes, thus option A is the right response.
To learn more about acceleration from here, refer to the link;
brainly.com/question/2303856
#SPJ2
find the total number of free electrons in a circular wafer of single crystal silicon that is 300 µm thick and 15 cm in diameter at t
No of electrons in a circular wafer = 7.948 *10¹⁰
Density of silicon at 300k is =1.5*10¹⁰ electron/cm³
given diameter =15 cms
radius=diameter / 2= 15 /2= 7.5 cms
Thickness =300 um
=300*10⁻⁶m=300*10⁻⁴cm=3*10⁻²cm
Voiume of the circular wafer=Пr²
=П*7.5*7.5*3*10⁻²cm
=П*7.5*7.5*3*10⁻²cm²
number of free electrons in circular wafer =e=ni*v electrons/cm³*cm³
=1.5*10¹⁰*П*7.5*7.5*3*10⁻²
=1.5*П*7.5*7.5*3*10⁸electron
=794.8125*10⁸ electron
=7.948*10⁸ electron.
In the electron cloud version of the atom, an orbital is described because the maximumIn the electron cloud version of the atom, an orbital is described because the maximum probably area of an electron. An atomic orbital is a mathematical time period in atomic idea and quantum mechanics that describes the location and wavelike behaviour of an electron in an atom.
The area and wavelike behavior of an electron in an atom are described mathematically by the phrase "atomic orbital" in the fields of quantum mechanics and atomic theory. It is represented mathematically as a region that has a good chance of harboring electrons.
To know more about electron , visit
https://brainly.com/question/865694
#SPJ4
A proton in an accelerator attains a speed of 0.845 . what is the magnitude of the momentum of the proton?
The magnitude of the momentum of the proton is 4.233 × 10⁻¹⁹ kg m/sec
Momentum can be calculated by using the formula,
Momentum = Mass × Velocity
For this proton we have,
Mass of proton is a constant = 1.67 × 10⁻²⁷ kg
Velocity = 0.845 c, where c is the constant speed of light.
Velocity = 0.845 × 3 × 10⁸
Velocity = 253.5 × 10⁶ m/sec
Substitute with the mass and velocity to calculate the momentum as follows:
Momentum = 1.67 × 10⁻²⁷ × 253.5 × 10⁶
Or, momentum = 4.233 × 10⁻¹⁹ kg m/sec
Hence, the momentum of the proton is 4.233 × 10⁻¹⁹ kg m/sec.
To learn more about the momentum, visit: https://brainly.com/question/27765125
#SPJ4
Transistors are made from si, but in the past, were made from ge. what elements do these symbols represent?
The symbol Si represent Silicon and the Symbol Ge represents Germanium.
A transistor is a semiconductor device which is used to switch or amplify electrical signals and power. To amplify electric current or to block its passage these transistors are used. Bipolar transistors, Field-effect transistors, and Insulated-gate bipolar transistors are the three types of transistors. The first transistor is the point-contact transistor which is invented in 1947.
Transistors are formed by connecting two diodes back to back. It has got two PN junctions. In the past transistors were made from Germanium and nowadays they are made from very pure Silicon. The symbol Si represent Silicon and the Symbol Ge represents Germanium.
To know more about Transistors refer to the link:
https://brainly.com/question/1426190
#SPJ4
what is the maximum velocity of an 89.0–kg person bouncing on a bathroom scale having a force constant of 1.63×106 n/m, if the amplitude of the bounce is 0.170 cm?
The maximum velocity of an 89.0 kg person bouncing on a bathroom scale having a force constant of 1.63 x 10^6 N/m is 31.1 m/s.
The above situation represents a case of Simple Harmonic Motion(SHM).
Following are some general equations of SHM :
ω = √k/√m
Here ω is the angular frequency
k is the force constant
m is the mass of the body
And the maximum velocity is given by the formula,
v = ω^2 x A
Where A represents the amplitude
Putting the given values in the above equation,
v = k/m x A
V = 1.63 x 10^6 x 0.17 x 10^-2/ 89
v = 31.1 m/s
Hence, the maximum velocity of an 89.0 kg person bouncing on a bathroom scale having a force constant of 1.63 x 10^6 N/m is 31.1 m/s.
To know more about "Simple Harmonic Motion", refer to the link given below:
https://brainly.com/question/17315536?referrer=searchResults
#SPJ4
How much heat does it take to increase the temperature of 2.40 molmol of an ideal gas by 50.0 kk near room temperature if the gas is held at constant volume and is diatomic?
The heat required to rise the temperature of 2.40 mol of an ideal gas by 50.0 k near room temperature is 2494.2J
What is Specific heats of ideal gas ?
The amount of energy required to raise a gas's temperature by 1 degree Celsius per mole is known as its molar specific heat. Additionally, the type of thermodynamic process and the molecularity of the gas affect the value of molar specific heat of a gas.
No. of moles , n = 2.40
Temperature rise,
ΔT=50K
For a diatomic gas, molar specific heat at constant volume, Cv =5/2R
therefore, Heat given can be calculated as :
Q =n×Cv×ΔT=2.40×5/2R×50 =2.40×5/2×8.314×50 = 2494.2J
To learn more about specific heat click on the link below:
https://brainly.com/question/21141291
#SPJ4