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In an ice show, a 60.0 kg skater leaps into the air and is caught by an initially stationary 75.0 kg skater. What is their final velocity assuming negligible friction and that the leaper's original horizontal velocity was 4.00 m/s? How much kinetic energy is lost?
An insulating rod of length 14.0 cm is bent into the shape of a semicircle and has a uniform total charge of -7.5 uC, Calculate the magnitude and direction of the electric field at the center of the semicircle arc
A wheel has a constant angular acceleration (deceleration) of 5.0 rad/s^2. the wheel was initially moving at 15.0 rad/s, How many revolution will the wheel make in 4.0 s
A stunt man drives a car at a speed of 20 m/s off a 27-m-high cliff. The road leading to the cliff is inclined upward at an angle of 20?. How far from the base of the cliff does the car land
A cave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. The lift is performed in three stages, each requiring a vertical distance of 14.0 m
Nichrome wire of cross-sectional radius 0.754 mm is to be used in winding a heating coil. calculate the length of wire you must use to wind the coil
The specific heat of a certain 50 g metallic block is 900 J/kg K. If the block is at an initial temperature of 80 degrees Celsius, and dropped into a 50 g bucket of water at 1 degree Celsius, Find the final temperature of the system
A proton travelling along the axis of a 2cm ring with a charge density of 5nC/cm is 5 cm from the center of of the ring and travelling toward it. What speed must it have to cross the ring's plane
a monkey pulls a box of bananas with mass 6.2 kg on a surface with a constant speed of 0.50 m/s. how much is the normal force on the box
A yo-yo has a rotational inertia of 1140 g·cm2 and a mass of 81.3 g. Its axle radius is 3.27 mm, and its string is 106 cm long, translational kinetic energy, rotational kinetic energy
A particle with a charge 3.2 x 10^-19 C is moving at a speed of 5x10^7 m/s that makes an angle of 40 degrees with respect to a uniform magnetic field B, Determine the magnetic field strength B
A parallel plate vacuum capacitor is connected to a battery and charged until the stored electric energy is u, Find u, the energy dissipated in the resistor
A ray of light is incident on the surface of a block of clear ice at an angle of 33.0° with the normal. Find the angle between the reflected and refracted light
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