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Suppose your body was able to use the chemical energy in gasoline. How far could you pedal a bicycle at 15 km/hr on the energy in 2.0 gal of gas? ( 1 gal of gas has a mass of 3.2 kg )
A computer to be used in a satellite must be able to withstand accelerations of up to 27 times the acceleration due to gravity. What is the minimum amplitude of vibration
An uncharged capacitor is connected to the terminals of a 2.0V battery, and 9.0?C flows to the positive plate, How much additional charge flows to the positive plate
A hiker, who weighs 919 N, is strolling through the woods and crosses a small horizontal bridge. The bridge is uniform, weighs 4410 N, and rests on two concrete supports, one on each end. He stops 1/3 of the way along the bridge.
A muon (an elementary particle) enters a region with a speed of 4.90 106 m/s and then is slowed at the rate of1.20 1014 m/s2
A step-down transformer is used for recharging the batteries of portable devices. Find the power delivered to the CD player
Under atmospheric pressure iron melts at 1530 ºC, and the latent heat of fusion is 1.49 × 104 J / mole. At the melting point, the density of the solid is phase is 7.80 g / cm3, and that of the liquid phase is 7.06 g / cm3. The atomic mass for iron..
The sound level 23 m from a loudspeaker is 65 dB. What is the rate at which sound energy is produced by the loudspeaker
A 94 g piece of ice at 0.0°C is placed in an insulated calorimeter of negligible heat capacity containing 100 g of water at 100°C, What is the final temperature of the water once thermal equilibrium is established
The step-down transformer in a local neighborhood reduces the voltage from a 7,200 V line to 120 V. If there are 125 loops on the secondary, how many are on the primary coil
Two blocks of masses m and 3m are placed on a frictionless, horizontal surface. A light spring is attached to the more massive block, Find the system's original elastic potential energy
In April 1974, Steve Prefontaine completed a 10000m race in a time of 1663.6 s. Suppose \"Pre\" was at the 8550m mark at a time of 1500 s. calculate the acceleration that he had
In a movie, a person is supposed to jump with a motorcycle from the roof of one skyscraper to another one. what minimum initial speed would she need to make the jump
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