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A ball is dropped from a high building. Using the approximate value of g = 10 m/s2, find the change in velocity between the fourth and fifth second of its flight.
m/s
You then kick the ball with the same initial velocity and at the same angle to the horizontal. This time, however, you kick it up a 15 degree slope. What is the horizontal range of the ball's travel
The angular momentum of a flywheel having a rotational inertia of 0.148 kg·m^2 about its central axis decreases from 6.70 to 0.560 kg·m^2/s in 3.50 s. How much work is done on the wheel
A 0.600 kg ball falls directly down onto concrete, hitting it with a speed of 13.5 m/s and rebounding directly upward with a speed of 3.00 m/s. What is the impulse on the concrete
The burning of gasoline in a car releases about 3 × 10^4 kcal/gal. If a car averages 43 km/gal when driving 90 km/h, which requires 20 hp, what is an efficiency of the engine under those conditions.
A car is parked on a cliff overlooking the ocean on an incline that makes an angle of 15.0° below the horizontal. Find the length of time the car is in the air
What mass (in grams) of steam at 100 C must be mixed with 175 g of ice at its melting point, in a thermally insulated container, to produce liquid water at 50.0 C.
For lead 82Pb206 (atomic mass = 205.974440 u) obtain the binding energy per nucleon (in MeV)
Two small silver spheres, each with a mass of 12.0 g, are separated by 1.00 m. Calculate the fraction of the electrons in one sphere
Two tugboats pull a disabled supertanker. Each tug exerts a constant force of 1.90×106 N, one at an angle 12.0 degrees west of north, What is the total work done by the two tugboats on the supertanker
an electron and a proton are each accelerated through a potential difference pf 10.0 million volts. Find the momentum ( in MeV/c) and the kinetic Energy ( in MeV) of each and compare with the results of using the classical Formular.
What is the distance Delta y_max-min between the second maximum of laser 1 and the third minimum of laser 2, on the same side of central maximum.
Seven-and-a-half seconds later the astronaut comes into contact with the shuttle. Elucidate what was the initial distance from the shuttle to the astronaut
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