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A 0.320 kg croquet ball makes an elastic head-on collision with a second ball initially at rest. The second ball moves off with half the original speed of the first ball. (a) What is the mass of the second ball? kg (b) What fraction of the original kinetic energy (?KE/KE) gets transferred to the second ball?
A positively charged He+ atom has two protons in the nucleus and one electron in the shell. In a classic model of the atom, What is the radius of the orbit
A startled armadillo leaps upward rising 0.550 m in the first 0.203 is. (a) What is its initial speed as it leaves the ground? m/s (b) What is its speed at the height of 0.550 m? m/s (c) How much higher does it go?
Find the maximum usable magnification for the 200 inch Hale telescope of the Mt. Palomar observatory
A model rocket is constructed with a motor that can provide a total impulse of 29.0 N·s. The mass of the rocket is 0.250 kg. What is the speed that this rocket achieves
A pendulum of length 1.5 m swings back and forth in a friction free laboratory environment. The pendulum is 1.4 m above the floor at the high point of its swing and 1.3 m above the floor at the low point.
At an amusement park there is a ride in which cylindrically shaped chambers spin around a central axis, What is the radius of a chamber
A 24.7cm diameter coil consists of 45 turns of circular copper wire 1.0mm in diameter. A uniform magnetic field, Determine the rate at which thermal energy is produced
Consider two vectors where F_1= 84 N, F_2 = 46 N, theta_1= 5 degrees, and theta_2 = 144 degrees, measured from the positive x axis with the counter-clockwise angular direction as positive. What is the magnitude of the resultant vector F = F_1 + F_..
If it takes him 0.250 s to get the brakes on and he is 30.0 m from the intersection when he sees the light, elucidate will he be able to stop in time?
The fire department decides to use the burning books to heat water
The electric potential immediately outside another charged conducting sphere is 190 V, Determine all possible values for the radius of the sphere
When Babe Ruth hit a homer over the 7.5 -high right-field fence 98 from home plate, roughly what was the minimum speed of the ball when it left the bat? Assume the ball was hit 1.4 above the ground and its path initially made a 37 angle with the grou..
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