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The cheetah is one of the fastest accelerating animals, for it can go from rest to 32.3 m/s in 3.52 s. If its mass is 120 kg, determine the average power developed by the cheetah during the acceleration phase of its motion. Express your answer in (a) watts and (b) horsepower.
Tension is maintained in a string as in the figure below. What is the mass per unit length of the string
Two cylindrical artificial bones are made of the same material and length, one with twice the radius as the other. When the two have the same tension force applied, the larger bone stretches by what factor compared to the smaller bone?
An Escort and a Camaro traveling at right angles collide and stick together. What was the speed of the Camaro
A water tower supplies water through the plumbing in a house. A 2.54-cm-diameter faucet in the house can fill a cylindrical container with a diameter of 62 cm and a height of 36 cm in 12 s. How high above the faucet is the top of the water in the ..
An RLC circuit has a resistor (R=175 ohms), a capacitor (C=4.78 microFarads) and an inductor (L=32.1mH). The frequency of the current is 652 Hz. What is the total impedance in the circuit
A flywheel for energy storage in a hybrid gasoline-electric car is a ring-shaped rotor of mass 49 kg, designed to rotate at 30000 rpm. What is the ring's diameter
Although both stars probably formed from the same clump of gas, more massive one must have had its birth slowed so that it became a key -sequence star millions of years later than its less massive companion.
A spherical concave lens has a focal length of 20cm, and an object is placed 15cm from the lens. estimate of the image distance and give image characteristics
A lens for a 35-mm camera has a focal length given by f= 49mm. A How close to the film should the lens be placed to form a sharp image of an object that is 5.3mm away?
A 2.0 meter long string that has a mass of 24.0 grams is under 45 N of tension. What is the maximum speed of a particle on the string
A hockey player is standing on his skates on a frozen pond when an opposing player, moving with a uniform speed of 15 m/s, skates by with the puck, How long does it take him to catch his opponent
question a block of mass m 5.5 kg is pulled up a ? 22deg incline as in the figure with a force of magnitude f 38
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