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Calculate the thickness of Indium foil which will absorb 1% of neutrons incident at the resonance energy for Indium (1.44 eV) where s = 28, 000 barns. At. Wt of Indium = 114.7 amu, density of Indium = 7.3 g/cm3
A bicycle racer sprints at the end of a race to clinch a victory. The racer has an initial velocity of 12.0 m/s and accelerates at the rate of 0.650 m/s2 for 7.00 s. how much time did he save
A point source of light is submerged 2.8 mbelow the surface of a lake and emits rays in all directions. What is the maximum radius that this circle could have
Frictional pressure drop depends on velocity, diameter, viscosity, and roughness. Use the average value of a parameter for a range if no further information is given. What is the relative roughness?
From the shore of a frozen lake, a QB throws a 2 kg football at a velocity of 20 m/s. How far does the person slide before they come to a stop
Which level of significance would you choose?
A 5.63 kg crate slides on a horizontal surface. The coefficient of kinetic friction between the surface and the crate is 0.383. estimate the magnitude of the external force acting on the crate
A 9-g bullet is fired from a rifle. It takes 3.30 10-3 s for the bullet to travel the length of the barrel, find the average net force exerted on the bullet
How long does it take for amplitude to drop to half its initial value . How long does it take for mechanical energy to drop to half its initial value.
In a very busy off-campus eatery one chef sends a 249-g broccoli-tomato-pickle-onion-mushroom pizza sliding down the counter from left to right at 1.67 m/s. At what speed does it move
The escape speed from a very small asteroid is only 26 m/s. If you throw a rock away from the asteroid at a speed of 39 m/s, what will be its final speed.
In a car lift, compressed air with a gauge pressure of 4.0 × 10^5 Pa is used to raise a piston with a circular cross-sectional area. what is the maximum mass that can be raised using this piston
A Styrofoam cup holding 135 g of hot water at 93°C cools to room temperature, 22.0°C. What is the change in entropy of the room
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