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What is the work done by the centripetal force on an object with a mass of 2 kg moving with a constant velocity of 3 m/s into a circular path of radius 0.5 m for one full cycle?
Blood can carry excess energy from the interior to the surface of the body, where the energy is dispersed in a number of ways. determine the temperature of the blood
A sphere rolls, without slipping, down an incline. The sphere has a mass of 0.450 kg and a radius of 6.78 cm. what is the rotational inertia of the sphere
An inductor in the form of a solenoid contains 380 turns and is 14.4 cm in length. What is the radius of the solenoid
A 10.3 kg block is dragged over a rough, horizontal surface by a 63.6 N force acting at 21° above the horizontal. Find the total change in the block's kinetic energy
A juggler performs in a room whose ceiling is 3.0 m above thelevel of his hands. He throws a ball upward so that it just reachesthe ceiling. What is the time required for the ball to reach the ceiling
If you lie on the ground at night with no cover, you get cold rather quickly. Much of this is due to energy loss by radiation. Estimate the net rate at which your body loses energy by radiation to the night sky under these conditions
A Doppler ultrasound machine uses a probe emitting ultrasound waves at 5MHz to probe the speed of blood cells moving in an artery, What is the wavelength through the soft tissue of ultrasound produced by this machine
Estimate the size of the friction force on a baseball player sliding into second base. Assume a mass of 84 and uk = 0.42
A rock is tossed straight up with a velocity of 23 m/s When it returns, it falls into a hole 10m deep, What is the rock's velocity as it hits the bottom of the hole
Two skaters, a man and a woman, are standing on ice. Neglect any friction between the skate blades and the ice. Determine the acceleration of the woman
Two blocks of weights 45.0 and 83.0 N are connected by as massless string and slide down an inclined plane making an angle of 31.0 deg. to the horizontal. find the magnitude of the lighter block's acceleration
A student holds a laser that emits light of wavelength 633nm. The beam passes through a pair of slits separated by 0.3mm, Find the speed of the first-order maxima on the screen
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