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Light is an electromagnetic wave and travels at a speed of 3.00 x108 m/s. The human eye is most sensitive to yellow -green light, which has a wavelength of 5.45 x 10-7m. Find what is the frequency of this light?
Four railroad cars, each of mass3.00 x 104 kg, are coupled together and coastingalong horizontal tracks at speed vi toward the south. Find the initial speed of the cars
If 3.9 moles of an ideal gas is at a temperature of 69 degrees C, find the pressure on the walls of the container due to gas
An object of mass .10kg makes an elastic head on collision with a stationary object with a mass of .15 kg. What is the initial velocity of the .10kg object
It is currently popular for automobiles to use 10% ethanol / 90%gasoline mixtures (‘gasohol’) as fuel. According topopular consensus the main benefit of gasohol use is that it“reduces our dependence upon foreign oil.” Test thisassertion by making ..
A Carnot engine operates with reservoirs at 135°C and 378°C, and 23600 J of heat are transferred into the engine from the hot reservoir during each engine cycle
Suppose a mangetic field of 7.45 mT is pointing into a piece of paper and then we shoot a small charged metal ball, 4.8 grams and +1.52 uC, What is the magnitude and direction of the force on the particle
X-rays having an energy of 300 keV undergo Compton scattering from a target. The scattered rays are detected at 37.0° relative to the incident rays. Find (a) the Compton shift at this angle, (b) the energy of the scattered x-ray, and (c) the energ..
a parallel-plate capacitor has an area of 5.40 cm2 and the plates are separated by 1.20 mm. the capacitor stores a
a football kicker can give the ball an initial speed of 34 ms. what are the a least and b greatest elevation angles at
Tasha with a nearsighted eye has near and far points of 16 cm and 25 cm, respectively. What is the power of the lens she uses
A man enters a tall tower, needing to know its height. He notes that a long pendulum extends from the ceiling almost to the floor, How tall is the tower
A 3.30-g copper coin at 21.0°C drops 45.0 m to the ground. (Assume the specific heat of copper is 387 J/kg · °C.) determine the coin's final temperature
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