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The belt shown moves over two pulleys without slipping. At the instant shown the pulleys are rotating clockwise and the speed of point B on the belt is 12 ft/s, increasing at the rate of 96 ft/s. Determine, at this instant,
(a) The angular velocity and angular acceleration of each pulley,
(b) The acceleration of point P on pulley C.
In deep space two spheres each of radius 5.00 m are connected by a 3.00 x 10^2 m nonconducting cord. If a uniformly distributed charge of 35.0 mC resides on the surface of each sphere, calculate the tension in the cord.
A solenoid of radius 3.5 cm has 800 turns and a length of 25 cm. Find the rate at which current must change through it to produce an emf of 90 mV
oxygenated hemoglobin absorbs weakly in the red hence its red color and strongly in the near infrared whereas
To the Amazon (EPM = Evil Physics Monkey) With his limited resources the EPM decides that the best way to get to his chosen destination (the Amazon rain forest) is by hot air balloon. How many moles of air are in the balloon
An engineer has designed a machine to produce electricity by using the difference in the temperature of ocean water at different depths. what is the maximum efficiency of this machine
A geostationary communications satellite orbits the earth directly above the equator at an altitude of 34800 . Calculate the time it takes for a signal to travel from a point on the equator to the satellite and back to the ground at another point ..
A 1 kg physics book lying on a 20 degree incline isattached to a 500g coffee cup. How far does the book slide
A spring of k=8 N/m has a block of mass 15 kg attached to it on a frictionless table. how fast will it be moving at its equilibrium position
A 40 kg child stands on the edge of a rotating merry-go-round with a radius of 2m. The moment of inertia of the merry-go-round is 200 kg-m^2. If the catch takes 0.4 seconds, find the average torque on the merry-go-round during the catch
Needing help, secretary of the United States Department of Agriculture asked your teacher, "If a chicken and a half can lay an egg and a half in a day and a half, how many days will it takes three chickens to lay twenty eggs".
Light travel from air into water with an incident angle of 40°. What is the refracted angle
a 74- kg ice hockey player standing on a frictionless sheet of ice throws a 6.6- kg bowling ball horizontally with a
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