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A swimming pool has dimensions 32.0 m ? 12.0 m and a flat bottom. The pool is filled to a depth of 2.30 m with fresh water. What is the force exerted by the water on the bottom
Ikjoo Yoo of the Tampa Bay Lightning has had his slap shot clocked at 102.1 mph (45.64 m/s). How much momentum is lost in the collision
An air-track glider attached to a spring oscillates between the 12.0cm mark and the 61.0cm mark on the track. find maximum speed of the glider
The electrical power output of a large nuclear reactor facility is 890 MW. It has a 34.0% efficiency in converting nuclear power to electrical. What is the nuclear power output in megawatts
If the average molecular mass of compounds in food is 47.5, how many molecules are there in 1.00 kg of food, Find the ratio of ion pairs to molecules
A 116 g Frisbee is 28 cm in diameter and has about half its mass spread uniformly in a disk, and the other half concentrated in the rim. What is the rotational inertia of the Frisbee
A 3.0 kg block rests on a 30° slope and is attached by a string of negligible mass to a solid drum of mass 0.80 kg, What is the coefficient of friction between block and slope
A 10g ball of clay is thrown horizontally at 30m/s toward a 1.5kg block sitting at rest on a frictionless hi surface. The clayts and sticks to the block. What impulse does the clay exert on the bloc
Heather and Jerry are standing on a bridge 60m above a river. How much time elapses between the first splash and the second splash
A small, 1.90-mm-diameter circular loop with R = 1.40×10?2? is at the center of a large 110-mm-diameter circular loop. What is the induced current in the inner loop
A platinum resistance thermometer has resistances of 230.0 omegacap.gif when placed in a 0°C ice bath and 236.8 omegacap.gif, What is the melting point of this substance
Calculate the relativistic kinetic energy of a 920 kg car moving at 33 m/s if the speed of light were only 45 m/s
When a missile is shot from one spaceship toward another, What is the relative velocity of the two ships
Two planets are on a collision course, heading directly toward each other at 0.250c. A spaceship sent from one planet approaches the second at 0.750c as seen by the second planet. find the velocity
A space probe speeding toward the nearest star moves at 0.28c, What frequency is received on earth
If a spaceship is approaching the earth at 0.24c, what is the speed of the capsule relative to the ship
Suppose a muon produced as a result of a cosmic ray colliding with a nucleus in the upper atmosphere has a velocity v = 0.9500c. What distance is this in the muon's frame
A 23.0 g block of copper whose temperature is 447 K is placed in an insulating box with a 92.4 g block of lead whose temperature is 132 K. find the equilibrium temperature of the two-block system
Plane monochromatic waves with wavelength 520 nm are incident normally on a plane transmission grating having 350 slits/mm
The temperature of 3.25 mol of an ideal diatomic gas is increased by 23.5 ?C without the pressure of the gas changing. By how much does the rotational kinetic energy of the gas increase
An astronomer on earth observes two galaxies moving away from each other along a line that passes through the earth. At what speed are the galaxies moving apart relative to each other?
A ray of light is incident on a flat surface of a block of cubic zirconia that is surrounded by water. obtain the angle of reflection
A current loop, carrying a current of 3.0 A, is in the shape of a right triangle with sides 30, 40, and 50 cm. Find the magnetic dipole moment of the loop
The capacitor in an LC circuit has a maximum charge at t= 1 ms. What is the circuit's period of oscillation
A 116 g insulated aluminum cup at 15°C is filled with 140 g of water at 50°C. After a few minutes, equilibrium is reached. Estimate the total change in entropy