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Q. A rocket rises vertically, from rest, with an acceleration of 3.5 until it runs out of fuel at an altitude of 1300 . After this point, its acceleration is that of gravity, downward.
What is the velocity of the rocket when it runs out of fuel?
Q. A skateboarder, starting from rest, rolls down a 15.0 m ramp. When she arrives at the bottom of the ramp her speed is 8.20 m/s. What is the magnitude.
assume the roller coaster (h1 = 34 m, h2 = 10 m, h3 = 20) passes point A with a speed of 2.00 m/s. If the average force of friction is equal to one sixth of its weight, with what speed will it reach point B? The distance traveled is 45m.
blocks are lined up in a row on a frictionless table. How much force does the 8.0 block exert on the 7 block.
What is the magnitude of the vertical component of its velocity as it strikes the ground.
Establish the temperature at the interface
what would the period of the system be. When a particular mass-spring system is started by stretching the spring 5 cm, one complete oscillation takes 2 seconds.
What is decrease in kinetic energy throughout the collision.
What is the car's maximum speed on an incline. A fire hose held near the ground shoots water at a speed of 5.4 m/s, At what angle(s) should the nozzle point in order that water land 2 m away.
The path of an electron, travelling at 3.7 × 104 meters/second, is making the right angle to a magnetic field. A single electron experiences a force of 2.2 × 10-15 Newton's while in the field. What is strength of the magnetic field .
You are trying to overhear a juicy conversation, but from your distance of 15m. It sounds like only an average whisper of 20 dB. So you decide to move closer to give the conversation a sound level of 60 dB instead. How close must you come.
A radio telescope, whose two antennas are separated by 55 , is designed to get 3.0- radio waves produced by astronomical objects.
what are the currents that the block can carry.
What is the speed of bulky cart after the collision
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