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A 1041 kg van, stopped at a traffic light, is hit directly in the rear by a 744 kg car traveling with a velocity of +2.00 m/s. Assume that the transmission of the van is in neutral, the brakes are not being applied, and the collision is elastic. What is the final velocity of the car?
An air-filled toroidal solenoid has a mean radius of 14.6cm and a cross-sectional area of 4.95cm^2. What is the last number of turns that the winding must have
In a nuclear power plant, the reactor produces 361? C steam that is used to power the steam turbines which generate 2202 MW of electrical power. The cooling tower eliminates the waste heat at 55?C. If the efficiency of the plant is that of a Carno..
A thermos contains 140 cm3 of coffee at 85° C. To cool the coffee, you drop two 15-g ice cubes into the thermos. What is the final temperature of the coffee
While John is travelling along a straight interstate highway he notices that the mile marker reads 243 km john travels until he reaches his path to the 178 km marker what is john's resultant displacement from the 243 km marker.
Light with a frequency of 2.55 x 1015 Hz ejects electrons from the surface of aluminum, which has a work function of 4.28 eV. What is the minimum de Broglie wavelength of the ejected electrons? nm
A hydrogen atom is in its n = 8 excited state. Determine, according to quantum mechanics, find the total energy (in eV) of the atom
Starting from rest, a 91-kg firefighter slides down a fire pole. The average frictional force everted on him by the pole has a magnitude of 800 N, How far did he slide down the pole
Find the group velocity of 0.57 MeV protons. Find the phase velocity of 0.57 MeV protons. Find the phase velocity of 0.57 MeV electrons
A 44 kg woman in an elevator is accelerating upward at a rate of 1.0 m/s2. What is the net force acting upon the woman
An AC generator is to have a maximum output of 318 V. Each coil has an area of 0.145 m2 and a resistance of 15.7 ?, Find the maximum current induced in the coil
An isolated parallel plate capacitor contains charge Q = +10uC on its plates, correponding to a potential difference of 10V. What is the voltage between the two plates after the separation becomes 2d
A 4.30-kg ball is dropped from a height of 14.5m above one end of a uniform bar that pivots at its center. The bar has mass 6.50kg and is 4.60m in length. At the other end of the bar sits another 6.00-kg ball, unattached to the bar. The dropped ball ..
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