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A 9.9 cm long spring (k = 900 N/m) is compressed by 2.4 cm. What is the potential energy due to the spring in Joules?
A 140 g, 90.0 mph fastball comes across the plate very nearly horizontally and is batted at 90.0 mph at a 30.0 degree angle (above the horizontal) toward center field. Determine the impulse (in N's) acting on the ball
A jetliner has a mass of 2.8 x 105 kg and flies at a speed of 190 m/s. If the speed of light in a vacuum had a hypothetical value of 350 m/s, what would be the magnitude of the jetliner's momentum
A diverging lens with a focal length of -48.0cm forms a virtual image 8.50mm tall, 16.5cm to the right of the lens. Determine the position of the object
How long after the first strike does Wilma hears the sound. What is the time interval between successive sound pulses she hears.
A car of mass m = 1190 kg is traveling down a ? = 14 degree incline. When the car's speed is v0 = 18 m/s, Calculate the distance the car travels down the hill L in meters until it comes to a stop at the end
Amy and Jessie are on a camping trip near a river. Jessie is floating on an inner tube raft, What angle does Amy's boat have to make so that she can follow the path straight to the island
What is the maximum mass of ethyl alcohol you could boil with 1000 J of heat, starting from 15 deg C
Suppose a single electron orbits about a nucleus containing two protons (+2e), as would be the case for a helium atom from which one of the naturally occuring electrons is removed. The radius of the orbit is 4.41 × 10-11 m. Determine the magnitude..
A circular loop in the plane of a paper lies in a 0.65T magnetic field pointing into the paper. What is the average induced current if the coil resistance is 2.3
A thin layer of oil (n=1.50) floats on water. Destructive interference is observed for reflected light of wavelengths 480 nm and 600 nm, Find the two minimum thickness of the oil film
A man of mass 71.6 kg is forced to stand on the very end. If the end of the board drops by 5.60 cm because of the man's weight, find the shear modulus of the wood.
A light ray with an incident angle of 38.5 degrees crosses from air to a solution and has an angle of refraction of 21.9 degrees. What is the speed of the ligth ray in the solution
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