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When it rains, water vapor in the air condenses into liquid water, and energy is released.
(a) How much energy is released when 1 inch of rain falls over an area of 2.59×106 m2 (one square mile)?
(b) If the average energy needed to heat one home for a year is 1.50×1011 J, how many homes could be heated for a year with the energy determined in part (a)
A curve of radius 50 m is banked for the design speed of 100 km/h. If the coefficient of static friction is 0.60 (wet pavement), at what range of speeds can a car safely create the curve.
Blocks A (mass 4.50 ) and B (mass 13.00 ) move on a frictionless, horizontal surface. Initially, block B is at rest and block A is moving toward it at 7.00. Find the velocity of each block after they have moved apart
Red light of wavelength 633 mm from a helium-neon laser passes through a slit 0.350 mm wide. The diffraction pattern is observed on a screen 2.70 m away. What is the width of the central bright fringe
A boat moves 15 .0 km across a lake in 30.0 min. What is the average speed of the boat in kilometers per hour
A simple loop circuit contains an inductor with inductance 2.45×10?2 H and a capacitor. what is the maximum current through the circuit
48 g of ice at -10oC is added to 150 g glass filled with 250 g of water at 20oC. At what temperature will the mixture reach equilibrium
If a person radiates about 65.00 W of power at room temperature, how long does it take for a person to radiate away the energy acquired by consuming a 230 Calorie donut.
A sample contains 8.30×104 radioactive nuclei. In a time of 5 minutes, Evaluate the half life of the sample
A converging lens and a diverging lens, separated by a distance of 20.5 cm, are used in combination. What is the focal length of the diverging lens
A tall tree is growing across a river from you. You would like to know the distance between yourself and the tree, as well as its height, but are unable to make the measurements directly. How tall is the tree
A trap door, of length and width 2.35 m, is held open at an angle of 65.0° with respect to the floor. what is the torque exerted on the trap door by the rope
A driver measures her "cold" tire gauge pressure to be 1.97 105 Pa. The measurement is made before driving, Find the final temperature of the air in the tires
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