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Q. A 9300 KG boxcar traveling at 15 m/s strikes a second box car at rest. The two stick together and move off with a speed of 6 m/s. What is the mass of the second car?
Q. A bullet is fired at an angle of 60o with an initial velocity of 200.0 m/s. How long is the bullet in the air? What is the maximum height reached by the bullet?
Find the total work done on the car
Decide the speed with the rock is thrown
Your projectile launching system is partially jammed. It can only launch objects with an initial vertical velocity of 42.0 m/s, though the horizontal component of the velocity can vary.
What is the average kinetic energy of an ideal gas.
It is 155cm from your eyes to your toes. You're standing 190cm in front of the tall mirror. How far is it from your eyes to the image of your toes.
The rms speed of the molecules in 1.8 of hydrogen gas is 1600 m/s. What is total translational kinetic energy of the gas molecules.
An iguana that is slowing down at a uniform rate of acceleration while moving in positive direction.
The first active volcano observed outside the Earth was discovered in 1979 on Io, one of the moons of Jupiter. Assume a volcano on another moon is observed to be ejecting material to a height of about 2.19 x10^5 m.
Following the procedure in the video, create three traces of the pendulum motion of the cup. Compare the three traces for amplitude, wavelength, and frequency.
A 747 airliner reaches its takeoff speed of 187 mi/h in 31.4s. What is the magnitude of its average acceleration.
An osprey's call is a distinct whistle at 2200 Hz. An osprey calls whereas diving at you, to drive you away from her nest. You hear call at 2220 Hz. How fast is the osprey approaching.
If the boy is traveling at 1 m/s relative to the ground, explain how fast does the boy appear to be moving relative to the woman? show your work.
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