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Two light pulses are emitted simultaneously from a source. The pulses take parallel paths to a detector6.50m away, but one passes through air and the other through a block offlint glass. Determine the difference in the pulses' times of arrival at the detector.
A 0.658-nm photon collides with a stationary electron. After the collision, Find the momentum of the electron
At this point, he throws a 39 yard forward pass straight down the field. Illustrate what is the magnitude of the football's resultant displacement?
He-Ne lasers are often used in physics demonstrations. They produce light of wavelength 633nm, What is the average energy density in the laser beam
A proton has a speed of 0.85c. FIRST Calculate the rest energy of the proton, Calculate the kinetic energy of the proton
A Nextrad wave of 2.70 GHz was sent out. If it took 3.75 ms to get the returning signal from a storm weather system, how far away is the storm
Suppose the end of your finger is charged, Estimate the breakdown voltage in the air for your finger
Calculate the gravitational force between the Sun and the Earth. Use the following numbers. G = 6.67 x 10-11 m3/kg/s2, Mass of the Sun (M_sun) = 2.0 x 1030 kg
a car with a speed of 40 kmh approaches the bottom of an icy hill. the hill has an angle of inclination of 10.5
A sphere of mass 2.8 kg is suspended from a cord. A steady horizontal breeze pushes the sphere so that the cord makes an angle of 40° with vertical when at rest.
A light ray of wavelength 589 nm is incident at an angle ? on the top surface of a block of polystyrene surrounded by air. What happens if the block is immersed in carbondisulfide
q1. as part of a safety investigation two 1300kg cars travelling at 18ms are crashed into different barriers. find the
The current in a 100 watt lightbulb is 0.85 A. The filament inside the bulb is 0.25 mm in diameter. What is the elecron current in the filament
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