What was the change in momentum of the ball
0.144 kg baseball is pitched horizontally at 33.0 m/s. After it is hit by the bat, it moves at the same speed, but in the opposite direction. What was the change in momentum of the ball?
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Two carts with masses of 4.80 kg and 2.78 kg move toward each other on a frictionless track with speeds of 4.94 m/s and 3.17 m/s respectively. The carts stick together after colliding head-on. Find the final speed.
A trombone can produce pitches ranging from 85 Hz to 660 Hz approximately. When the trombone is producing a 553 Hz tone, what is the wavelength of that tone in air at standard conditions?
The horizontal component of the Earth's magnetic field at the location of the loop is 1.50×10-5 T. Calculate the maximum EMF induced in the coil by the Earth's field.
What is the smallest angle of incidence with respect to the top mirror, such that the laser beam hits the mirrors in each way?
A rocket engine emits 3.04 x 104 J of sound energy every second. The sound is emitted uniformly in all directions. What is the sound intensity level, measured relative to the threshold of hearing, at a distance of 120 m away from the engine? Hint:
A car travels at a constant speed around a circukar track whose radius is 2.6 km. The car goes once aroud the track in 360s. what is the mangitude of the centriprtal acceleration of the car?
Yusef pushes a chair of mass Yusef pushes a chair of mass = 55.0 across a carpeted floor with a force (the subscript 'p' here is lowercase and throughout the question) of magnitude = 168 directed at = 35.0 below the horizontal. The magnitude of th
An Indy car with a speed of 125 km/h goes around a level, circular track with a radius of 1.30 km. What is the centripetal acceleration of the car?
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