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A 0.145 kg baseball pitched at 42.0 m/s is hit on a horizontal line drive straight back toward the pitcher at 52.0 m/s. If the contact time between bat and ball is 3.00 multiplied by 10-3 s, calculate the average force between the ball and bat during contact.
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A particle moves from an initial position with coordinates x = -2.0 m, y = +3.0 m, What is the magnitude of the average velocity for this displacement
The diffraction pattern of a uniformly illuminated double-slit aperture consists of bright fringes spaced 5.00 cm apart on a screen 2.00 m from the aperture. what is the slit width and slit seperation
q1. a cube of ice is taken from the freezer at -9.4degc and placed in a 94 g aluminium calorimeter filled with 315 g of
A dynamite blast at a quarry launches a rock straight upward, and later it is rising at a rate of 15m/s. Assuming air resistance has no effect on the rock, calculate the total time the rock is in the air.
A mass of 2 kg is attached to a spring with spring constant k=100 N/m. What is the period of oscillation for the mass
how high does it rise above the point of release. guess the speed of the car just before braking.
A diver, below the surface of a lake, notices that no light appears to be coming toward her greater than the angle è, what is the angle è
After falling from rest from a height of 30m, a 0.5 kg ball rebounds upward, reaching a height of 20 m. what average force was exerted on the ball
In the semiconductor industry, an insulating layer can be built onto silicon devices by oxidizing the silicon to form silica, SiO2, Write down a balanced equation for the reaction between silica and HF.
A long straight wire carrries a current I1 of 15 A. A rectangular coil with two sides parallel to the straight wire has sides 5 cm, what is the net force of the coil
A 2560 - ? resistor and a 1.9 - ?F capacitor are connected in series across a generator (60.0 Hz, 120 V). Determine the power delivered to the circuit
A basketball player grabbing a rebound jumps 70 cm vertically. How much total time (ascent and descent) does the player spend (a) in the top 11.9 cm of this jump and (b) in the bottom 11.9 cm.
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