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1. A ball is kicked from the ground toward a fence that is located 25 m away. The ball is given an initial velocity of 19 m/s with an angle of 42 degrees with the horizontal. The fence is 3.8 meters high. By how much does the ball clear the fence?
A 100-turn, 4.0-cm-diameter coil is at rest in a horizontal plane. What is the induced emf in the coil
Find the maximum altitude reached by the rocket.Find its total time of flight.
A 71kg student runs at 6.0m/s , grabs a hanging rope, and swings out over a lake. He releases the rope when his velocity is zero, What is the angle when he releases the rope
A diver of weight 780 N stands at the end of a diving board of length L = 5 m and negligible mass. The board is fixed to two pedestals separated by distance d = 1.5 m
A long string with a mass/length of 500 g/m is placed under a tension of 400 N, What is the wavelength of the resulting wave and What is the wave speed
The speed of light in a material is 0.52×c. What is the critical angle (in degrees) of a light ray at the interface between the material and a vacuum
On a banked race track, the smallest circular path on which cars can move has a radius of 111 m, while the largest has a radius 153 m, Find the smallest speed at which cars can move on this track without relying on friction
What is the pressure change in water going from a 3.2- cm-diameter pipe to a 1.8- cm-diameter pipe if the velocity in the smaller pipe is 8.0 m/s
The magnetic field in the region between the poles of an electromagnet is uniform at any time, but is increasing at the rate of 0.060 T/s. What is the magnitude of the induced emf
An uncharged capacitor is connected to a 55 V battery until it is fully charged, after which it is disconnected from the battery. A slab of paraffin is then inserted between the plates.
Gold is the most ductile of all metals. For example, one gram of gold can be drawn into a wire 2.25 km long. What is the resistance of such a wire at 20°C
A hot iron horseshoe (mass = 0.50kg ), just forged, is dropped into 1.50L of water in a 0.30kg iron pot initially at 25.0?C. estimate the initial temperature of the hot horseshoe
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