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A sanding disk withrotational inertia 1.7 10-3 kgm2 isattached to an electric drill whose motor delivers a torque of8 Nm about the centralaxis of the disk. What are the following values about the centralaxis at the instant the torque has been applied for 40 ms?
(a) the angular momentum of the disk
kgm2/s
(b) the angular speed of the disk
rad/s
You've taken your neighbor's young child to the carnival to ride the rides. She wants to ride The Rocket. Eight rocket-shaped cars hang by chains from the outside edge of a large steel disk. What is the car's speed
A uniform ladder 7.34m long weighing 410N rests with one end on the ground and the other end against a perfectly smooth vertical wall. What force does the wall exert on the ladder
A box with a total surface area of 1.01 m2 and a wall thickness of 4.81 cm is made of an insulating material. Find the thermal conductivity of the insulating material
A child is walking along the sidewalk at a constant speed of 1 m/s while pulling his dog sitting in a wagon. what is the frictional force exerted by the wagon on the dog
The distance between the first and fifth minima of a single slit diffraction pattern (on the same side of the central maximum) is 0.35 mm with the screen 45 cm away from the slit and using light of wavelength 550 nm. For this problem, you may assu..
A 430 gram rock is whirled on the end of a string 45 cm long which will break under a tension of 22 N. What is the highest speed the rock can reach before the string breaks? (Neglect gravity.)
A loop is pulled with a force F to the right to maintain a constant speed of 8.0 m/s. The loop has a length of 0.15 m, a width of 0.080 m, and a resistance of 200.0 ?. What is the induced current in the loop
The peak current through an inductor is 11mA. What is the current if the emf frequency is doubled
A cubic box of volume = 0.34300m^3 is filled with air at atmospheric pressure at 20.000*C. What is the net force on one side of the box
electrons are ejected from a metallic surface with speeds up to 460000 m/s when light of wavelength 650 nm is used. find the work funtion
an 8.5 m long wire of resistance 20.6 \(\Omega\) carries a current of 6.6, What is the magnitude of the electric field in the wire
A fugitive tries to hop on a freight train traveling at a constant speed of 5.4m/s . Just as an empty box car passes him, What is the distance traveled to reach the box car
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