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A flywheel of mass 189 kg has an effective radius of 0.61 m (assume the mass is concentrated along a circumference located at the effective radius of the flywheel).
(a) How much work is done to bring this wheel from rest to a speed of 120 rpm in a time interval of 29.8 s?
kJ
(b) What is the applied torque on the flywheel (assumed constant)?
N · m
The coefficient of kinetic friction for a 21 -kg bobsled on a track is 0.10. What force is required to push it down a 6.0 incline and achieve a speed of 61 km/hat the end of 75 m
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You are on a team that will recover a ship from the sea. You have been given the task to perform a few calculations to move your team forward. find the tension when the body is completely out of water
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he 5.0- block is pulled to the right with a force as shown in the figure . The coefficient of static friction between all surfaces is 0.55 and the kinetic coefficient is 0.3, illustrate what is the minimum value of needed to move the two blocks?
How much power must you exert to horizontally drag a 20.0 kg table 14.0 m across a brick floor in 40.0 s at constant velocity, assuming the coefficient of kinetic friction between table and floor is 0.550.
question1an isolated large-plate capacitor not linked to anything originally has a potential difference of 1110 volts
A piece of copper at 320 degrees Celsius is dropped into 1.4 kg of water at 17 degrees Celsius. If the equilibrium temperature is degrees Celsius , what is the mass of the copper
The image is located 3.5 cm from the mirror. (a) If the image is 4X larger than the object. Calculate the distance between the object and the mirror. (b) Calculate the focal length of the mirror.
q1. damping is negligible for a 0.139 kg mass hanging from a light 7.00 nm spring. the system is driven by a force
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