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A 9410-kg car is traveling at 29.7 m/s when the driver decides to exit the freeway by going up the ramp. After coasting 411 m along the exit ramp the car's speed is 11.8 m/s and it is h =14.9 m above the freeway. What is the Magnitude of the average drag force exerted on the car?
A satellite is in orbit 4.2*10^7 m from the center of Earth with a speed of 7,800 m/s. what is the mass of the satellite
What minimum force is necessary to start the block moving up the wall? (Hint: The static frictional force is now directed down the wall.)
A 140 g air-track glider is attached to a spring. The glider is pushed in 12.00 cm and released. A student with a stopwatch finds that 9 oscillations take 10.0 s.
A uniform rod of length 0.790 m and mass 14.50 kg is balanced on a sharp edge at 0.650 m from the left end. At the left end hangs a mass of 45-kg and the right end hangs an unknown mass so that the whole assembly is in equilibrium.
How large does the radius R of the dish have to be to attain electric field vector amplitude of 0.1mV/m at the receiver.
A peregrine falcon dives at a pigeon. The falcon starts with zero downward velocity and dives with the free-fall acceleration. If the pigeon is 81.5 m below the initial height of the falcon, how long does it take the falcon to intercept the pigeon..
A 0.75m diameter solid sphere may be rotated about an axis through its center by a torque of 11.5m*N which accelerates it uniformly from rest through a total of 180 revolutions in 16.0 s.What is the mass of the sphere.
Two protons are located on the x-axis at 1.0m and on the y-axis at 1.5m. Determine the electric potential energy of a third proton located at the origin
A thin 11-cm-long solenoid has a total of 440 turns of wire and carries a current of 1.9A, Calculate the field inside the solenoid near the center
The engineer takes 0.400 seconds to react, and then applies the brakes. At what rate must the passenger train then decelerate in order to avoid a collision?
Consider a balloon containing nitrogen molecules at room temperature (20°C) and atmospheric pressure. what is the number of molecules in the balloon
Chip rolls a ball down an incline (without slipping) at the same time Emmanuel slides a frictionless block with the same mass down the incline
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