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A small, 300g cart is moving at 1.90m/s on an air track when it collides with a larger, 5.00kg cart at rest. After the collision, the small cart recoils at 0.840m/s .
What is the speed of the large cart after the collision?
V=
A bullet of mass 0.0022 kg initially moving at 503 m/s embeds itself in a large fixed piece of wood and travels 0.71 m before coming to rest. Assume that the acceleration of the bullet is constant.
A defibrillator consists of a 16.7-µF capacitor that is charged to 9.0 kV. (a) If the capacitor is discharged in 2.0 ms, how much charge passes through the body tissues? C (b) What is the average power delivered to the tissues?
Superconductors have been discussed as a means for electrical energy storage. Because they are resistanceless, how much electrical energy (in kWh) could be stored
On a cold day, 16000 J of heat leaks out of a house. The inside temperature is 20.0° C, and the outside temperature is -18° C. What is the increase in the entropy of the universe that this heat loss produces?
A wire of initial length L0 and radius r0 has a measured resistance of 2.0 . The wire is drawn under tensile stress to a new uniform radius of r = 0.45r0. What is the new resistance of the wire
The speed of a transverse wave on a string is 450 m/s and the wavelength is 0.18 m. The amplitude of the wave is 2mm. How much time is necessary for a particle of the string to move through a total distance of 1 km.
A loudspeaker of mass 22 {rm kg} is suspended a distance of h = 2 {rm m} below the ceiling by two cables that make equal angles with the ceiling. Each cable has the length of l = 3.90 {rm m}.
A hydrogen atom is in its fourth excited state (n = 5). Using the Bohr theory of the atom, calculate the linear momentum of the electron
A golf ball of mass 0.045 kg is hit off the tee at a speed of 32m/s . The golf club was in contact with the ball for 3.10×10?3s. Find the impulse imparted to the golf ball
Two parallel plates, each of area 3.72 cm2, are separated by 4.50 mm. The space between the plates is filled with air. Calculate the amount of the electric charge stored on each plate
An alpha particle has twice the charge of a beta particle. Why does the former deflect less than the later when passing between electrically charged plates, What particles make up the nucleus of an atom
A 15.0kg block is attached to a very light horizontal spring of force constant 550N/m, Find the maximum distance that the block will compress the spring after the collision
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