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A car drives straight off the edge of a cliff that is 46 m high. The police at the scene of the accident observed that the point of impact is 133 m from the base of the cliff. How fast was the car traveling when it went over the cliff?
A person with a near-point distance of 29 cm is able to get a usable magnification of 12 with a particular magnifying glass. What is the friend's near-point distance
Two identical speakers are separated by 3.4m and produce sound of different frequencies equally in all direction. Determine the sound level in decibels at the point that is a midway between the speakers
A pellet gun is fired straight downward from the edge of a cliff that is 14.5 m above the ground. How far above the cliff edge would the pellet have gone had the gun been fired straight upward
A skier of mass 68.4 kg glides down a hill of slope 26.5 degree at constant speed. If she travels a distance 35.0m down the hill, what is (a) the work done by friction and (b) the coefficient of friction between her skis and the slope?
The average intensity of sunlight reaching the earth is 1390 W / m2. A charge of 2.00 x 10^-8 C is placed in the path of this electromagnetic wave. What is the magnitude of the maximum electric force that the charge experiences
The length of nylon rope from which a mountain climber is suspended has a force constant of 1.10 ? 104 N/m. What is the frequency at which he bounces
A 25 kg cannon shell is subjected to a constant acceleration of 1200 g while in the cannon barrel. What force is the burning propellant exerting on the shell?
A cylinder of volume 0.330 m3 contains 12.0 mol of neon gas at 23.2°C. Assume neon behaves as an ideal gas. Find the internal energy of the gas when its volume is 1.000 m3
A weather balloon is designed to expand to a maximum radius of 17 m when in flight at its working altitude where the air pressure is 0.034 atm, what is its radius at lift-off
In an experiment designed to measure the speed of light, a laser is aimed at a mirror that is 53.0 km due north. By how many meters (due east) will the reflected ray miss the detector
A radio tuner is built by connecting an L=0.48mH inductor and variable capacitor in series with an antenna. What is the quality factor of the circuit with the capacitance you found
question1an atomic nucleus of mass 230 u moving at 400 ms emits an alpha particle of mass 4.0 u in direction of its
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