What is the speed of box just before it encounters spring
A 3 kg box is released from rest on a smooth curved surface 5 m above the bottom as shown. At the bottom the box encounters a spring with a spring constant k=400 N/m. What is the speed of the box just before it encounters the spring?
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Determine the temperature rise of the contents after 0.8 h if the mass of the water is 6 kg and the mass and specific heat of the paddle wheel are 0.4 kg and 0.96 kJ/kg-K, respectively.
What is the rotational inertia of the board plus children about a vertical axis through the center of the board?
A pendulum bob of mass m is released from a height H above the lowest point. It collision at the lowest point with another pendulum of the same length but with bob of mass 2m initially at rest. Find the heights to which the bobs rise given that th
How much heat is needed to a 0.3m^3 rigid volume containing saturated water vapor at 1000 kPa in order for final temperature to be raised to 800 C?
The number of incoming calls to a mail order call center is a Poisson random variable with parameter of ?=1.8/min. What is the probability that the number of arriving calls in any minute exceeds three? What is the probability that the number of ar
If the coefficient of kinetic friction between the block and wall is 0.487, find the work done by F.
What is the magnitude of the force exerted by the hail on a 13.00 m x 12.00 m flat roof during the storm ? Ignore the bounce of the hail on impact.
Determine a velocity versus time graph of their descent, and estimate the maximum freefall distance that would allow a safe landing speed of 6m/s.
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