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A train is traveling with a speed of 16.0 m/s relative to Earth. A passenger standing at the rear of the train pitches a baseball with a speed of 10.5 m/s relative to the train off the back end, in the direction opposite the motion of the train.
What is the velocity of the baseball relative to Earth?
m/s
What is the velocity of the baseball relative to the Earth if thrown in the opposite direction at the same speed?
A tennis ball of mass 0.0611 kg is served. It strikes the ground with a velocity of 55.6 m/s (124 mi/h) at an angle of 21.2° below the horizontal. what average force did the ground exert on the ball
The work needed to remove an electron from the surface of sodium is 2.3 eV. How big maximal velocity will have electrons if the surface of sodium will be illuminated with ultraviolet light wave length
The magnetic field in a microwave traveling through vacuum has amplitude 4.00 X 10^-11T, Find the amplitude and frequency of the elctric field
A 8.00 nF capacitor is charged up to 14.0 V , then disconnected from the power supply and connected in series through a coil. Calculate the maximum charge on the capacitor
First work out the momentum before and after hitting the table. Don't forget the gravitational force.
Moment of inertia Wheel If you lift the front wheel of a poorly maintained bicycle off the ground and then start it spinning at 0.72rev/s, what is the magnitude of the frictional torque
A ball is thrown vertically upward from the ground with an initial speed of 15.00 m/s. How long does it take the ball to reach its maximum altitude
The speed of sound in air is 345 m/s. A tuning fork vibrates above the open end of a sound resonance tube. what is the frequency (in Hertz) of the tuning fork
Two free particles (that is, free to move) with charges +q and +4q are a distance L apart. A third charge is placed so that the entire system is in ?quilibrium. Find out the location, magnitude, and sign of the third charge.
After a shipwreck, a solid steel spoon lies at the bottom of the ocean, 5.65 below the surface. determine the fractional volume change in the spoon
The moment the other student passes you, you start accelerating at 2.67 m/s2, After what distance will you catch up with your classmate
What is the total work W_fric completed on the block by the force of friction as the block moves a distance 8 rm m up the incline.
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