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A stone is thrown at an angle of 30 above the horizontal from the top edge of a cliff by an initial speed of 12 m/s a stop watch gauge the stones trajectory time from the top of the cliff to the bottom is 5.6 s What is the stones velocity (x-direction, y-direction, total velocity) when it hits the ground?
A concrete highway curve of radius 80.0 meter is banked at a 13.0 degree angle. Find the maximum speed with which a 1600 kilogram rubber-tired car can take this curve without sliding
Suppose a spacecraft of mass 28000kg is accelerated to 0.25c, How much kinetic energy would it have
A parallel-plate capacitor is made of two flat metal plates pressed against a thin slab of dielectric material. The capacitor is connected to a power supply, and a potential difference of 80 V is applied to the plates. With the power supply discon..
A balloon is released from a tall building. The total mass of the balloon including the enclosed gas is 1.5kg. Its volume is 2.5m^3. What is the average density of the balloon with gas
A lifeguard sits on his watchtower at the edge of the pool at a height h=2.0m above the surface of the water. What is the depth of the pool at the location of the watch
2 mol of a diatomic ideal gas expand adiabatically and quasi-statically. The initial temp of the gas is 300K, What is the final temp of the gas
an observer that is listening to a stereo through a speaker decides to walk away from the speaker to a position that is
An airplane flies from Chicago to New Orleans (a distance of 1500 km) in the morning, then immediately returns to Chicago. What is the average speed for the entire trip
a 120 g ball attached to a spring with spring constant 2.9 nm oscillates horizontally on a frictionless table. its
What is magnitude of the speed of the boat relative to a stationary shore observer. A person stands at a point that is 4 m from one of the speakers and 4.4 m from the other. Does the person hear the tone? Explain.
A bird stands on a dc electric transmission line carrying 2500 A, What is the potential difference between the bird's feet
The maximum magnitude of the electric field in an electromagneticwave is 0.0050 V/m. What is the maximum magnitude of the magnetic field in this wave
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