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An object of mass of 2.0 kg hangs from an ideal massless spring with a spring constant of 50 N/m. An oscillating force F = (4.8 N) cos[(3.0 rad/s)t] is applied to the object. What is the amplitude of the resulting oscillations? You can neglect damping.
A worker on scaffolding 65 ft above the ground needs to lift a 340 lb bucket of cement from ground to a point 30 feet above the ground by pulling on a rope weighing 5 lb/ft. How much work is required.
Wile E. Coyote and the Roadrunner are fictional cartoon characters. The premise of the cartoon is that Wile E. Coyote unsucessfully tries to catch the very fast, What is the velocity of the combined system of two wagons
A 13.00 g bullet travelling 236 m/s penetrates a 2 kg block of wood and emerges cleanly at 179 m/s. If the block is stationary on a frictionless surface as hit, how fast does it move after the bullet emerges.
A diver makes 0.50 revolutions on the way from a 9.9-m-high platform to the water. find the diver's average angular velocity during a dive
NASA has attempted to use the concept of motional EMF to produce energy for satellites in orbit. what is the equivalent resistance of the electrical system of the satellite
A 58.6g mass connected to a spring with a force constant of 31.2 N/m oscillates on a horizontal, frictionless surface with an amplitude of 3.70 cm. Calculate the total energy of the system
In a local bar, a customer slides an empty beer mug down the counter for a refill. The height of the counter is 1.20 m. The mug slides off the counter and strikes the floor 0.60 m from the base of the counter.
The pressure of a garden hose is 2 atmospheres. If the cross-sectional area of the hose is 4 cm^2 and the nozzle output area is .4cm^, How fast does the water leave the hose
Three pendulums with strings of the same length and bobs of the same mass are pulled out to angles q1, q2 and q3 respectively and free. The approximation sin q = q holds for all three angles, with q3 > q2 > q1. How do the angular frequencies of th..
A cannonball is fired horizontally at 200m/s off the top of a 50m tall cliff. how far will the ball land from the cliff bottom
The drawing shows an equilateral triangle, each side of which has a length of 2.23 cm. Point charges are fixed to each corner, Determine the charge qA and qB
An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. What is the mass of this canister
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