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A spring with a spring constant value of 125 N/m is compressed 12.2 cm by pushing on it with a 215 kg block. when the block is released, what velocity will the block have when it leaves the spring?
What are comets like when they are on the part of their orbit that is far from the Sun? Are they as easy to observe?
The rotational inertia of the record about its axis of rotation is 5 X 10-4 kg-m2 . A wad of wet putty of mass 0.020 kg drops vertically onto the record from the above and sticks to the edge of the
Why is it considered likely that there may be other Pluto-sized objects in these two regions that have not yet been discovered?
What is the average magnitude of the Poynting vector 5.00 miles from a radio transmitter broadcasting isotropically with an average power of 250 kW?
An antelope moving with constant acceleration covers the distance 77.0m between two points in time 7.40s. Its speed as it passes the second point is 15.5 m/s. What is its speed at first point?
What is the magnitude of the force exerted on the bottom of the bottle?
Do we think the ring systems surrounding these planets are as old as the planet? Why or why not? Describe the processes that determine the evolution of rings around giant planets.
A curve of radius 54.9 m is banked so that a car of mass 1.7 Mg traveling with uniform speed 55 km/hr can round the curve without relying on friction to keep it from slipping on the surface. 1.7 Mg &m
Research some of the recent results from the Cassini mission on the planet Saturn or any of its moons. Contrast what Cassini has learned to what we knew prior to this Mission.
Using Kepler's third law, calculate how long it takes for Neptune to orbit the Sun once if its semi-major axis is exactly 30 AU.
A ceiling fan is turned on and reaches an angular speed of 120 rev/min in 20s. It is then turned off and coasts to a stop in 40s. In the one minute of rotation, through how many revolutions did the
A railroad car of mass 2.00X10^4 kg moving at 3.00m/s collides and couples with two coupled railroad cars, each of teh same mass as the single cra and moving in the same direction at 1.20m/s a) wha
A man is doing push-ups. He has a mass of 64 kg and his center of gravity is located at a horizontal distance of 0.70 m from his palms and 1.00 m from his feet. Find the forces exerted by the floor
Disregard air resistance, and assume the ground is level. What is the kinetic energy of the mass just before it strikes the ground?
the most rapid transit is accomplished if the belt accelerates for half the distance, then decelerates for the final half of the trip. if the coefficient of static frication between a box and the be
The wheel turns through an angle of 438 rad as it coasts to a stop at constant angular deceleration. What was the wheel's angular acceleration as it slowed down?
A second mass is attached at another mark to keep it horizontal and in rotational and translational equilibrium. If the tension in the string attached to the ceiling is 22.2 N, find the value of the
A gas is compressed at a constant pressure of 0.800 atm from 10.00 L to 3.00 L. In the process, 370 J of energy leaves the gas by heat. What is the work done on the gas?
A 50.0 kg beam of length 17.0 m is being supported by two struts. How far from the base is the left srut located?
A 38-kg girl is bouncing on a trampoline. During a certain interval after she leaves the surface of the trampoline, her kinetic energy decreases to 185 J from 425 J. How high does she rise during t
An object with mass 1.0 kg is executing simple harmonic motion, attached to a spring with spring constant k =195 N/m. When the object is 0.21 m from its equilibrium position, it is moving with a sp
The ladder makes a 50.0° angle with the ground. How far up the ladder can an 880 N person climb before the ladder begins to slip?
A small 150.g pebble is 9.00km deep in the ocean and is falling with a constant speed of 25m/s. What force does the water exert on the falling pebble?
A 14.0 m long conveyor belt, inclined at 27.0°, is used to transport bundles of newspapers from the mail room up to the cargo bay to be loaded on delivery trucks. Each newspaper has a mass of 1