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The kinetic energy of a proton is 80 percent of its total energy. Evaluate what is the speed of the proton?
An aircraft with a mass of 996 kg accelerates from 0 to 87 m/s in 6.2 seconds, at which time the aircraft launches. What is the kinetic energy of the aircraft when the aircraft launches
A drag force on a falling object in air is directly proportional to the square of its velocity. what will be the kinetic energy of an object
An Atwood's machine consists of blocks of masses m1 = 11.0 kg and m2 = 21.0 kg attached by a cord running over a pulley as in the figure below. The pulley is a solid cylinder with mass M = 8.60 kg and radius r = 0.200 m. The block of mass m2 is allow..
After landing on an unfamiliar planet, a space explorer constructs a simple pendulum of length 52.0 cm . The explorer finds that the pendulum completes 108 full swing cycles in a time of 145s .What is the magnitude of the gravitational acceleration o..
How long would it be on the incline before it arrives back at bottom.
Astronauts on the moon set up a simple pendulum of the length 1 m and measured it's period to be 4.93 s. What is the acceleration due to gravity on the moon?
A parachutist bails out and freely falls 50 m. Then the parachute opens, and thereafter she decelerates at 1.8 m/s2. At what height does the fall begin
Light of wavelength 600 nm falls on a 0.45 mm wide slit and forms a diffraction pattern on a screen 1.5 m away. Discover the position of the first dark band on each side of the central maximum. Discover the width of the central maximum.
Estimate the pressure exerted on a floor by the one pointed chair leg (50 kg on all four legs) of area = 0.08 cm2
a 96 g piece of ice at 0.0degc is placed in an insulated calorimeter of negligible heat capacity containing 100 g of
An electron moves with a speed of 8.0 × 10^6 m/s along the +-axis. It enters a region where there is a magnetic field of 2.5 T, Calculate the magnitude of the magnetic force on the electron
If a 68.3 kg person were travelling at 0.960c (where c is the speed of light), what would be the ratio of the person's actual kinetic energy to the person's classical kinetic energy
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