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The kiloton, which is used to measure the energy released in an atomic explosion, is equal to about 4.02 x 1012 J (approximately the energy released in the explosion of 1,000 tons of TNT). Recalling that 1 kilocalorie of energy raises the temperature of 1 kg of water by 1 oC and that 4,184 Joules is equal to 1 kilocalorie, then ---- x 108 kg of water initially at 1 oC can be heated up by 60 oC by a 49 kiloton atomic bomb.
A 124 balloon carrying a 22 basket is descending with a constant downward velocity of 25.2. A 1stone is thrown from the basket with an initial velocity of 19.9 perpendiculars to the path of the descending balloon.
A solenoid with a cross-sectional area of 1.70*10^-3 is 0.735m long and has 485 turns per meter. Find the magnitude of induced emf in this solenoid
The upward normal force exerted by the floor is 700 on an elevator passenger who weighs 720. What is the reaction force to weight of the passenger
A baseball leaves the batter's bat at 30° above horizontal. With what speed does the ball leave the bat, What is the acceleration of the ball when it reaches maximum height
A blue ball is thrown upward with an initial speed of 23.2 m/s, from a height of 0.7 meters above the ground. 2.8 seconds after the blue ball is thrown, What is the speed of the blue ball when it reaches its maximum height
If the company is presently selling 45,000 units, but plans to spend an additional $108,000 on an advertising program, explain how many additional units must the company sell to earn the same net income it is now making?
A flywheel rotates at a rate of 20 rpm. A motor provides a constant angular acceleration so that 30 secondslater it turns at a rate of 70 rpm, what is the angular acceleration of the splotch of paint
q1. what mass in grams of steam at 100degc should be mixed with 257 g of ice at its melting point in the thermally
Nichrome wire is used in some radiative heaters. What power will it draw when first switched on
A spacecraft is in circular Earth orbit at 6000 altitude. By how much will its altitude decrease if it moves to a new circular orbit where its orbital period is 5% lower
Compute the final equilibrium temperature.
The drawing shows a person looking at a building on top of which an antenna is mounted. The horizontal distance between the person's eyes and the building is L = 98.1 m. How tall is the antenna
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