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A baseball is thrown with an initial horizontal speed of 20 m/s, and an initial vertical speed of 10 m/s. Find the horizontal distance where the baseball will hit the ground, and the total time of fight. Assume g = 10 m/s2
A tuning fork is sounded above a resonating tube (one end closed) which resonates at a length of 0.32 m, What is the frequency of the fork
A baseball player hits a triple and ends up on third base. A baseball "diamond" is a square, each side of length 27.4 m, What is the magnitude of the player's displacement
An iron wire has a cross-sectional area equal to 9.50 10-6 m2. Carry out the following steps to determine the drift speed of the conduction electrons in the wire if it carries a current of 8.0 A. Calculate the drift speed of conduction electrons in..
q1. a parachutist descending at a speed of -13.0 ms loses a shoe at the altitude of 54.0 m.a when does the shoe reach
A railroad car of mass 2.5 104 kg moving at 3.50 m/s collides and couples with two coupled railroad cars, How much kinetic energy is lost in the collision
At a county fair, two children ram each other head-on while riding on the bumper cars. Jill and her car, traveling left at 3.20m/s, determine the speed of Jill and her car after the collision
A ray of light incident upon a mirror makes an angle of 42 with the mirror. What is an angle between the incident ray and the reflected ray.
A 3.8-kg block of iron (c=0.11 kcal/kgoC) that has been brought to a temperature of 1,078oC is placed on top of a 2.4-kg block of ice (c=0.5 kcal/kgoC) that has been cooled to -50oC
Starting from rest, a 5.50-kg block slides 2.00 m down a rough 30.0° incline. Determine the work done by the normal force
a silver dollar of mass 200gm, and diameter 8cm, has a small hole punched through it at 2 cm from the center. the coin is initially at rest in a vertical plain with the hole directly under the center, what is the angular velocity of the coin at its..
A soccer ball is kicked with an initial speed of 30 m/s at an angle of 25 degrees with respect to the horizontal. Find the maximum height reached by the ball
How fast should a car move toward you for the car's horn to sound 2.88% higher in frequency than as the car is stationary? The speed of sound is 343 m/s.
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