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A large turntable rotates about a fixed vertical axis, makingone revolution in 8.00 s. The momentof inertia of the turntable about this axis is 1100 kgm2. A childof mass 41.0 kg, initially standing atthe center of the turntable, runs out along a radius. What is theangular speed of the turntable when the child is 3.00 m from the center? (Assume that you can treatthe child as a particle.)
__________ rad/s
A mass-spring system oscillates with an amplitude of 4.60 cm. If the spring constant is 240 N/m and the mass is 435 g, determine the mechanical energy of the system. Calculate the speed of the sphere's CM at the bottom of the ramp. Determine the m..
A highway is to be built between two towns, one of which lies 50.0 km south and 80.0 km west of the other. at what angle would this highway be directed
Two spherical objects with a mass of 5.26 kg each are placed at a distance of 3.95 m apart. How many electrons need to leave each object
A mining cart is pulled up a hill at 20 km/h and then pulled back down the hill at 33 km/h through its original level. What is the average speed of the cart for its round trip
The drag coefficient, D, for a spherical raindrop with a radius of 0.445cm falling at its terminal velocity is 1.74×10?5kg/m. Calculate the raindrop's terminal velocity in \rm m/s
Calculate the cost of electricity using a AA alkaline battery compared to the cost of electricity we use at home
Dan lifts a mass of 10 kg vertically upward at a constant speed of 0.2 m/s through a distance of 1 m. What is the work done by Dan
A proton and an electron have the same kinetic energy upon entering a region of constant magnetic field. What is the ratio of the radii of their circular paths
A capacitor with parallel circular plates of radius R = 1.65 cm is discharging via a current of 16.5 A. How much displacement current is encircled by the loop
Water flows over Victoria Falls, which is 128 m high, at an average rate of 1.10 106 kg/s. If all the potential energy of this water were converted to electric energy, how much power would be produced by these falls?
A person pulls a toboggan for a distance of 40.1 m along the snow with a rope directed 21.3 ° above the snow. How much work is done on the toboggan by the tension force
q1. far in space where gravity is negligible a 450 kg rocket travelling at 77 ms fires its engines. the thrust force as
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