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A tennis player standing 12.2 mfrom the net hits the ball at 3.60°above the horizontal. To clear the net at the apex of itstrajectory, the ball must rise at least 0.335 m. If the ball just clears the net, how fast was the ball moving when it left the racquet?
The coyote starts 42.0 m from the brink of a cliff. The roadrunner zips past him at a speed of 18.0 m/s. What is the acceleration of the coyote
A cylinder contains a mixture of helium and argon gas inequilibrium at 160°C. (a) What is the average kinetic energy for each type of gas molecule?
A 1.6 kg mass (initially at rest) compresses a spring (spring constant 1900 N/m) by 5×10?2 m, and is released. After colliding and sticking together, the two masses move up a frictionless inclined plane. What is the maximum height achieved by the ..
An aluminum container which has a mass of 0.350 kg holds 0.70 kg of water. The water and container are both at 45.0°C. How much ice is required
Light in vacuum is incident on the surface of a glass slab. In the vacuum the beam makes an angle of 41.5° with the normal to the surface, What is the index of refraction of the glass
A sphere of mass 2.8 kg is suspended from a cord. A steady horizontal breeze pushes the sphere so that the cord makes an angle of 40° with vertical when at rest.
A device known as Atwood\'s machine consists of two masses hanging from the ends of a vertical rope that passes over a pulley. Assume the rope and pulley are massless and there is no friction in the pulley.
Heat is added to an open pan of water at 100.0?C, vaporizing the water. How much energy is transferred to the system as heat
A spelunker (cave explorer) drops a stone from rest into a hole. The speed of sound is 343 m/s in air, and the sound of the stone striking the bottom is heard 4.88 s after the stone is dropped. How deep is the hole?
Find the magnitude of the angular acceleration produced given the mass lifted is 13.5 kg at a distance of 28.0 cm from the knee join, the moment of inertia of the lower leg is 0.900 kg*m2, the muscle force is 1470 N and its effective perpendicular le..
The kinetic energy of a proton is 80% of its total energy. What is the momentum in kg·m/s of the proton?
Find out the constant force that must be exerted on him to bring him to rest in a distance of 1.2 m in a time interval of 0.20 s.opposite the fullback's direction of motion.
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