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A rock is thrown from the edge of a cliff to the ground 16.0 m below. The rock has an initial velocity of 18.5 m/s, directed 40.0° above the horizontal.
How long does it take the rock to reach the ground?How far from the base of the cliff does the rock strike the ground?Find the velocity/direction of the rock just before it strikes theground.
A person runs up a long flight of stairs in 10 seconds. If the person's weight is 600 N, determine the person's power output
A microwave oven of mass 12.5kg is pushed a distance 8.00m up the sloping surface of a loading ramp inclined at an angle of 36.2? above the horizontal, What is the work done on the oven by the force
Potential inside nonconducting sphere (08c24p11) A nonconducting sphere has a radius R=10 cm and uniformly distributed charge q=5.5e-12 C. Take the electric potential at the sphere's center to be zero. What is V at radial distance r=1.5 cm?
Normal atmospheric pressure is 1.013 x 105 Pa. The approach of a storm causes the height of a mercury barometer to drop by 20 mm from the normal height. What is the atmospheric pressure during the storm?
A scuba diver and her gear displace a volume of 69.7L and have a total mass of 72.9kg. What is the buoyant force on the diver in sea water
A 10000 N car comes to a bridge during a storm and finds the bridge washed out. The 750N driver must get to the other side, What is the speed of the car just before it lands safely on the other side
An oil drop (density = 0.80 grams/cm3) has a diameter of 2.30 ?m. (This is about the size of a bacterium.) (A) Find the mass of the drop, What is the value of the electric field
The period of a pendulum is proportional to the square root of its length. A 2.5 m long pendulum has a period of 3.0s
A camera's flash uses the energy stored in a 260?F capacitor charged to 190V . The current in the charging circuit is not to exceed 21mA, What's the resistance in the charging circuit
a carnival ride consists of a vertical cylindar, radius 2 m. When it revolves it pins people to its walls, What is the required period of revolution
The surface tension of soapy water is 0.0250 N/m. What is the height of the water in a capillary tube of diameter 2.00 mm
A 2.0 kg mass (mA) and a 5.50 kg mass (mB) are connected to a lightweight cord that passes over a frictionless pulley. The pulley only changes the direction of the force exerted by the rope.
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