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A 5.0 g bullet leaves the muzzle of a rifle with a speed of 320 m/s. Find what force is exerted on bullet while it is traveling down the 0.82-m-long barrel of the rifle?
The wheel weighs 70 kg, and is 120 cm in diameter. you mount the wheel by its central axis, What is the angular velocity of the wheel at the end of the fall
Earth is about 150 trillion meters from the Sun, while Mars is about 230 trillion meters from the Sun. What is the gravitational force between Mars and Earth
A television is tuned to a station broadcasting at a frequency of 6.30×10^7Hz. Find the optimum length of the antenna
a racquetball with a diameter of 5.6 cm and a mass of 42 g is cut in half to make a boat for american pennies made
A 2.00g bullet strikes a 2.00kg block hanging from a long cord. Find the velocity of the bullet before it collides with the block
A 3.0 kg mass is attached to a vertical spring hanging from the ceiling. The spring and mass are stationary. The spring constant for the spring is 250 N/m. What is the gravitational potential energy of the system
An ac power generator produces 24 A rms at 4909 V. The voltage is stepped up to 86000 V by an ideal transformer, What percentage of the power delivered by the generator is dissipated as heat in the power line
Two horses pull a large crate of negligible mass at constant speed across a barn floor by means of two light steel cables. What is the work done by each horse
A large storage tank, open to the atmosphere at the top and filled with water, Determine the speed at which the water leaves the hole
A rocket-powered hockey puck has a thrust of 2.0 N and a total mass of 1.0 kg. How far does the puck land from the base of the table
1 a notebook computer wire carries 1.5 a. how many electrons pass through the wire each second? 2 a 50-w and 100-w
a magnetron has a central cathode with radius a surrounded by an anode with inner radius b and an axial uniform
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