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A 1.50*10^3-kg car starts from rest and accelerates uniformly to 19.1 m/s in 12.0 s. Assume that air resistance remains constant at 400 N during this time.
Find the instantaneous power output of the engine at t = 12.0 s, just before the car stops accelerating.
If the density and atomic mass of copper are respectively 8.80 103 kg/m3 and 63.5 kg/kmol, Determine the drift speed of the electrons in a 10 gauge copper wire (2.588 mm in diameter) carrying a 19.5 A current
An X-ray beam of wavelength 0.01nm strikes a target containing free electrons. determine The change in wavelength of the scattered x-ray
A golf ball of mass 50 g released from a height 1.5m above a concrete floor bounces back to a height of 1.0 m. What is the amount of energy lost during the impact
A grating with 633 slits/cm is illuminated with light of wavelength 419 nm. What is the highest-order number that might be observed with this grating.
Four identical point charges (+ 2.50 nC) are placed at the corners of a rectangle which measures 2.00m x 4.00m. If the electric potential is taken to be zero at infinity
You are driving east on 8th Street (Tamiami Trail) at a speed of 30 mph. What is the frequency of the siren
A gas in an engine undergoes a reversible cycle in which 152 Joules of work are done and 419 Joules of heat are supplied by the fuel. what would the high temperature be
a point charge q is held at a distance of 2a from the center of an isolated and the conducting sphere of radius a. what is the potential of the sphere
An advertisement shows a 1239 kg car slowly pulling at constant speed a large passenger airplane to demonstrate the power of its newly-designed 79.7-hp (horsepower) engine, How much work is performed by the car on the airplane during this time
Suppose that a simple pendulum consists of a small 61 g bob at the end of a cord of negligible mass. find the pendulums maximum kinetic energy
A uniform, spherical cloud of interstellar gas has mass 2.0x10^30 kg, and radius 1.0x10^13 m and is initially rotating with a period of 1.4x10^6 yrs. what will be the star's rotational period
Intelligent beings in a distant galaxy send a signal to earth in the form of an electromagnetic wave. What is the speed vrel of the galaxy relative to the earth
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