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(a) How much energy is released in the explosion of a fission bomb containing 3.0 kg of fissionable material? Assume that 0.10% of the rest mass is converted to released energy.
(b) What mass of TNT would have to explode to provide the same energy release? Assume that each mole of TNT liberates 820,000 calories upon exploding. The molecular mass of TNT is 0.227 kg.
(c) For the same mass of explosive, how much more effective are fission explosions than TNT explosions? That is, find the ratio, fission/TNT, of the fraction of rest mass converted to released energy.
The largest fusion bomb ever detonated (called the Tsar Bomba) was tested by the Soviet Union in 1961. How many kilograms of matter were converted to energy
Pluto has a mass of 1.30x10^22 kg and a radius of 1.18x10^6 m. What is the acceleration due to gravity on Pluto
a 45.7 kg girl is standing on a plank that has a mass of 152 kg. the plank originally at rest is free to slide on a
A laptop computer communicates with a router wirelessly, bymeans of radio signals. The router is connected by cabledirectly to the Internet. The laptop is 8.1 m from therouter, and is downloading text and images from the internet at anaverage rate..
While skiing in Jackson, Wyoming, your friend Ben (of mass 84.3 kg) started his descent down the bunny run, 27.7 m above the bottom of the run. If he started at rest and converted all of his gravitational potential energy into kinetic energy, what is..
A bullet of mass 0.0022 kg initially moving at 496 m/s embeds itself in a large fixed piece of wood and travels 0.64 m before coming to rest. Imagine that an acceleration of the bullet is constant.
A 378 N, uniform, 1.56 m bar is suspended horizontally by two vertical cables at each end. Cable A can support a maximum tension of 502.0 N without breaking, and cable B can support up to 397.0N. You want to place a small weight on this bar. What is ..
A tow truck pulls a car 5.00 \rm km along a horizontal roadway using a cable having a tension of 850 \rm N. How much work does the cable do on the car if it pulls horizontally
The 2-kg ball is thrown at the suspended 20-kg block with a velocity of 4 m/s. If the coefficient of restitution between the ball and the block is e = 0.8, determine the maximum height h to which the block will swing before it momentarily stops.
A car heading north collides at an intersection with a truck heading east. If they lock together and travel at 28 m/s at 22° north of east just after the collision
Assume the charge on black hole is 5740 C. At what distance from it is the electric potential equal to 1100 V.
A 106 kg object moves in a horizontal straight line with an initial speed of 58 m/s. If it is stopped along that line with a deceleration of 2.00 m/s2 what magnitude of force is required
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