Answer:
the two gliders collide, the mobile glider will transfer a bit of time to the fixed glider, which is why it comes out with a speed that is smaller than that of the bullet glider.
Explanation:
When the two gliders collide, the mobile glider will transfer a bit of time to the fixed glider, which is why it comes out with a speed that is smaller than that of the bullet glider.
Changes can occur that the gliders unite and move with a cosecant speed less than the initial one.
The whole process must be analyzed using conservation of the moment.
p₀ = m v₀
celestines que clash case
p_f = (m + M) v
po = pf
m v₀ = (n + M) v
v = [tex]\frac{m}{m+M}[/tex]
calculemos
v= [tex]\frac{0.200}{0.200+M} 0.450[/tex]
v= 0.09 m/s
elastic shock case
p₀ = m v₀
p_f = m v₁ +M v₂
p₀ = p_f
m v₀ = m v₁ + m v₂
what type of energy are the water molecules gaining during a phase change
Answer:
Potential energy.Explanation for yall who dont get:
Basically, the energy that is changing during a phase change is potential energy. Why? Cuz, during a phase change, the heat added (Potential Energy INCREASES) or released (Potential Energy DECREASES) allow the molecules to move apart or be together.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Leme know if im wrong.
GL.
Oxygen makes up more than 90 percent of the volume of the Earth's crust. Is oxygen found as a solid, liquid, or gas?
Answer:
Oxygen is an element that can be a solid, liquid or gas depending on its temperature and pressure. In the atmosphere it is found as a gas, more specifically, a diatomic gas. This means that two oxygen atoms are connected together in a covalent double bond.
A toy dart gun generates a dart with a momentum of 140 kg*m/s and a
velocity of 4 m/s. What is the mass of the dart?*
Answer:
35 kg
Explanation:
From the question,
Momentum (I) = mass (m) × velocity (v)
I = m×v................... Equation 1
Where m = mass, v = velocity
make m the subject of the equation
m = I/v.................... Equation 2
Given: I = 140 kgm/s, v = 4 m/s
Substitute these values into equation 2
m = 140/4
m = 35 kg
Hence the mass of the dart is 35 kg
Answer:
the answer is .035 kg.
Explanation:
You just divide the momentum by the velocity to get the mass. Hope this helps.
Determine the angle between the 12 and the 4 on the face of a clock in radians, degrees and revolution
Answer:
Angle - 120 degrees, 2.093 radians and 0.33 revolution
Explanation:
Minute hand is on the 12 and the hour hand is on the 4.
The angle formed between 4 and 12 is
[tex]\frac{4}{12} * 360 = 120[/tex] degrees
The angle formed between 4 and 12 in radian is
[tex]\frac{\pi }{180} * 120 = 2.093[/tex] radians
The angle formed between 4 and 12 in revolution is
[tex]\frac{2.093 }{2 \pi } \\= \frac{2.093 }{2* 3.14} \\= 0.33[/tex] revolution
is an electrical current which comes from a battery
which supplies a constant flow of electricity in one direction.
A 4 N weight is hung from a spring causing it to
stretch a distance of 0.16 m. What is the
spring constant?
Answer:
0.25 N/m
Explanation:
F = 4 N
x = 0.16 m
Plug those values into Hooke's Law:
F = kx
4 N = k(0.16 m)
---> k = 0.25 N/m
A person weighing 645 N climbs up a ladder to a height of 4.55 m what is the increase in gravitational energy
Answer: 2934.75 Joules
Explanation:
Potential energy can be defined as energy possessed by an object or body due to its position.
Mathematically, potential energy is given by the formula;
P.E = mgh
Where P.E represents potential energy measured in Joules.
m represents the mass of an object.
g represents acceleration due to gravity measured in meters per second square.
h represents the height measured in meters.
Given the following data;
Weight =645
Height = 4.55
P.E = mgh
But we know that weight = mg = 645N
Substituting into the equation, we have;
P.E = 645 • 4.55
P.E = 2934.75J
Potential energy, P.E = 2934.75 Joules.
Did I do this right??
Answer:
yes
Explanation:
good job
PLEASE HELP! ASAP
During which process is radiation given off by isotopes with unstable atomic
nuclei?
A. Nuclear fusion
B. Chemical decay
C. Radioactive decay
D. Nuclear fission
Answer:
C. Radioactive decay
Explanation:
Answer:
Radioactive Decay
Explanation:
Ap3x
What is the gravitational potential energy of a 0.550-kg projectile flying with 335 m/s, 72 meters above the ground?
Answer:
GPE = 388.08 Joules.
Explanation:
Given the following data;
Mass = 0.550kg
Speed = 335 m/s
Height = 72 meters
We know that acceleration due to gravity, g is equal to 9.8 m/s²
To find the gravitational potential energy;
Gravitational potential energy (GPE) is an energy possessed by an object or body due to its position above the earth.
Mathematically, gravitational potential energy is given by the formula;
[tex] G.P.E = mgh[/tex]
Where;
G.P.E represents potential energy measured in Joules.
m represents the mass of an object.
g represents acceleration due to gravity measured in meters per seconds square.
h represents the height measured in meters.
Substituting into the formula, we have;
[tex] G.P.E = 0.550 * 9.8 * 72[/tex]
GPE = 388.08 Joules.
Which statement explains how ocean currents affect climate?(1 point)
Ocean currents change the temperature of air masses. Cold ocean currents transport heat from the equator to the poles.
Ocean currents change the temperature of landmasses. Cold ocean currents transport heat from the equator to the poles.
Ocean currents change the temperature of air masses. Warm ocean currents transport heat from the equator to the poles.
Ocean currents change the temperature of landmasses. Warm ocean currents transport heat from the equator to the poles.
Answer:
C
Explanation:
Warm water and precipitation are transported from the equator to the poles by ocean currents, whereas cold water is returned to the tropics from the poles. Ocean currents control climate globally by balancing out the uneven distribution of solar radiation that reaches Earth's surface.
What Ocean currents, the temperature of landmasses?Short-distance currents can travel across entire ocean basins, while longer ones can even circle the earth. Ocean currents are vital in regulating the climate because they transport heat from the equator to the poles.
The distribution of air temperature is significantly influenced by ocean circulation. The warm Gulf Stream in the North Atlantic and the chilly Peru (Humboldt) Current in South America are two examples of ocean currents with a northward or southbound component that efficiently exchange heat between low and high latitudes.
Learn more about ocean Current here:
https://brainly.com/question/21654036
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Is this right?? please help me. IT IS SOCIOLOGY!!
Answer:
Yes, it is correct : )
Explanation:
Hope this helps!
Answer:
yes, this is correct.
Explanation:
How does quantum theory explain the emission spectra of atoms
A. Electrons slowly gain energy in a continuous fashion
B. The movement of an electron between energy levels occurs gradually a small amount of energy are absorbed
C. Each motion of an electron between energy levels is associated with a single, specific amount of energy
D. Electrons absorb the energy they need to jump to a higher energy level from any light source above a minimum energy
Answer:
C
Explanation:
Each motion of an electron between energy levels is associated with a single, specific amount of energy
The Pasig Revolving Tower has an estimated height of 45.23 meters. How high is it in yard?
Answer:
50.26
I hope its help
Thank you
THIS IS URGENT !!!
Four students recorded the time it took them to walk to school from their
homes as shown in the tabel below.
Motion of Four Students
Student
Which student had the greatest average speed?
Student 1
Student 2
Student 3
Student 4
I’LL MARK BRAINLIST!!!
You rubbed two identical balloons in your hair's friend. This causes the balloons to become charged negatively with a magnitude of 2.5 x 10^-6 C. If they are held 0.5 cm apart, (a) What is the electric force between the two balloons? (b) It is a repulsive or attractive force? Why?
Answer:
a) F = 2.25 10³ N, b) REPULSIVE.
Explanation:
a) The electric force is given by coulomb's law
F = [tex]k \frac{q_1q_2}{r^2}[/tex]k q1q2 / r2
in this case nso indicate that the two charges have the same value
q₁ = q₂ = 2.5 10⁻⁶ C
Let's reduce the magnitudes to the SI system
r = 0.5 cm (1m / 100cm) = 5 10⁻³ m
let's calculate
F = [tex]9 \ 10^9 \frac{(2.5 \ 10^{-6})^2 }{(5 \ 10^{-3})^2}[/tex]
F = 2.25 10³ N
b) In electricity, electric charges of the same sign repel and those of the opposite sign attract
In this exercise, the balls are equal and are rubbed with the same material, for which it acquires charges of the same type, consequently, as the charges are of the same type, they indicate that the negative force is REPULSIVE.
PLEASE HELP!!! GIVING BRAINLIEST!! ill also answer questions that you have posted if you answer these correctly!!!! (40pts)
Answer:
False
Explanation:
The ground or surface cannot give off energy
(correct me if i am worng) :)
What is the SI unit of velocity?
O m
O m/s
O m/s2
O m*s2
Answer:
m/s
Explanation:
What is the equation for frequency?
Answer:
f=1/t is the equation of frqency
what are fission write its type
Answer:
In nuclear physics and nuclear chemistry, nuclear fission is a nuclear reaction or a radioactive decay process in which the nucleus of an atom splits into two or more smaller, lighter nuclei. ... Fission is a form of nuclear transmutation because the resulting fragments are not the same element as the original atom.
Explanation:
Plz mark brainliest thanks
If there is a 0.10 kg sample of the unknown metal alloy originally at 150℃, that is placed in 1.0 kg water at 20℃, and the final temperature rises to 23.5 ℃, what is the specific heat capacity?
Specific Heat of Water: 4180 J/kg ℃
Answer:
We now introduce two concepts useful in describing heat flow and temperature change. The heat capacity ( C ) of a body of matter is the quantity of heat ( q ) it absorbs or releases when it experiences a temperature change ( ΔT ) of 1 degree Celsius (or equivalently, 1 kelvin)
C=qΔT(12.3.1)
Heat capacity is determined by both the type and amount of substance that absorbs or releases heat. It is therefore an extensive property—its value is proportional to the amount of the substance.
For example, consider the heat capacities of two cast iron frying pans. The heat capacity of the large pan is five times greater than that of the small pan because, although both are made of the same material, the mass of the large pan is five times greater than the mass of the small pan. More mass means more atoms are present in the larger pan, so it takes more energy to make all of those atoms vibrate faster. The heat capacity of the small cast iron frying pan is found by observing that it takes 18,140 J of energy to raise the temperature of the pan by 50.0 °C
Explanation:
PLESS HELP!!! 30 points this is language arts
Read the excerpt from A Black Hole is NOT a Hole.
However, near a black hole, gases and dust and stars encounter its tug. Some things may be hurtling by so fast they won't get pulled into the black hole. Other things may not be as swift. They will be drawn in.
Closer and closer, the tugging force gets stronger and stronger. Close enough, the black hole no longer acts like a whirlpool.
With a whirlpool, there's always a fast-enough fish—or a fast-enough something—that moves so quickly it won't be pulled all the way into the center.
Not so with a black hole! Within a certain distance the black hole's power is so strong, nothing is fast enough to zip away.
What is being compared or contrasted in this excerpt?
A. A comparison between the power of a star and the power of a whirlpool is being made.
B. A contrast between the power of a star and the power of a whirlpool is being made.
C. A comparison between the power of a black hole and the power of a whirlpool is being made.
D. A contrast between the power of a black hole and the power of a whirlpool is being made.
Answer:
D. A contrast between the power of a black hole and the power of a whirlpool is being made.
Answer:
D
Explanation:
To prevent injuries you should do a warm up and cool down.
True or False
Answer:
true
hope my ans helps
plz give brainliest to my answer
be sure to follow me
stay safe
have a good day
Answer:
True
Explanation:
A warm-up revs up your cardiovascular system by raising your body temperature and increasing blood flow to your muscles. Warming up also helps reduce muscle soreness and it lessens your risk of injury. Cooling down after your workout allows for a gradual recovery of pre exercise heart rate and blood pressure.
Two 31-m long parallel wires are 0.155 m apart. Each carries 168 A of current. What is the magnitude of the force between the wires? Please give your answer in Newtons.
Answer:
The magnitude of magnetic force between the two parallel wires is 1.13 N.
Explanation:
Given;
length of each wire, l = 31 m
distance between the two parallel wires, r = 0.155 m
current on each wire, I = 168 A
The magnitude of magnetic force between the two parallel wires is calculated as;
[tex]F = \frac{\mu _oI_1I_2 L}{2\pi r} \\\\F = \frac{(4\pi \times 10^{-7}) \times (168)^2 \times (31)}{2\pi \times 0.155} \\\\F = 1.13 \ N[/tex]
Therefore, the magnitude of magnetic force between the two parallel wires is 1.13 N.
How many joules
of energy is needed
to run a 600 watt
power drill for
5 minutes?
Answer:
180KJ
Explanation:
power=Energy/time
power=600watts, time=5minutes=60*5=300 seconds
therefore;Energy=power*time= 600* 300
=180,000joules
OR
180Kilojoules
How should ready-to-eat food be stored after it has cooled?
Answer:
The answer is most likely C.
Ready-to-eat foods are stored at the top of the fridge, away from raw foods so that harmful bacteria cannot transfer from the raw food to the cooked food. Raw meat, poultry and fish in sealed containers to stop them touching or dripping onto other foods.
Answer:
Explanation:
uncovered
Displacement vectors of 20m west and 8m east make a resultant vector that is (include the unit and direction) PLEASE ANSWER FAST
Answer:12m west
Explanation: subtract 20m from 8m and you get 12m west
After being stuck by a bowling ball, a 1.8 kg bowling pin slides to the right at 3.6 m/s and collides head-on with another 1.8 kg bowling pin initially at rest. What is the final velocity of the second pin if the first pin moves to the right at 0.54 m/s after the collision
Answer:
Explanation:
We shall apply law of conservation of momentum at the time of collision
Momentum before collision of both the pins = 1.8 x 3.6 + 0 = 6.48 kg m/s
Momentum after the collision of both the pins = 1.8 x .54 + 1.8 x v where v is velocity of second pin
So , according to law
6.48 = 1.8 x .54 + 1.8 x v
6.48 = .972 + 1.8 x v
v = 3.06 m /s to the right .
Through which of these media do sound waves travel the fastest?
A. rock
B. hot air
C. seawater
D. foam
Answer:
sound travel fastest through solids this is because molecules in a solid media much closer together then throws in a liquid or gas flowing sound ways to travel more quickly throw it in fact sound waves travel over 17 times faster throw Steel then through air
A: screwdriver
B: Hamer
D: Saw
C: Axe
Answer:
a: a screwdriver
Explanation: