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Two waves travel in the same medium at the same speed. One has wavelength 0.0382 m and frequency 9.67×106 Hz. The other has wavelength 0.0421 m. What is the period of the second wave?
The electron gun in a TV picture tube accelerates electrons between two parallel plates 1.5cm apart with a 27 kV potential difference between them.
Alan leaves Los Angeles at 8:00 a.m. to drive to San Francisco, 400 mi away. He travels at a steady 47.0mph. How long does the first to arrive have to wait for the second
q1. the total momentum of a closed system is observed to be 670 kgms east. the system consists of 36 objects that are
To lift a wire ring of radius 1.85 cm from the surface of a container of blood plasma, Calculate the surface tension of blood plasma
Calculate the gravitational force on a spacecraft 8700km above the Earth's surface if its mass is 1200kg
Coin is placed 14.0 from the axis of the rotating turntable of variable speed. When the speed of the turntable is slowly increased, the coin remains fixed on turntable until a rate of 40.0 (revolutions per minute) is reached, at that point the coin s..
Suppose a particle with mass m is released from rest in a uniform gravity g, write down the relativistic equation of motion and find an expression that gives the relationship between velocity and time
Two sheets of polarizing material are placed with their transmission axes at right angle to one another. What is the intensity of the transmitted light when the middle sheet is removed
ocean waves with wavelength 1.2 m and period 1.5s are moving past a pier. a boy runs along the pier, in the direction opposite to the motion of the wave, at 3.5 m/s. how many wave crests pass the boy each second?
Alice made a telephone call from her home telephone in New York to her fiance stationed in Baghdad, about 10,000km away, Estimate the time taken for signals sent by telephone cable
An electron is confined to a box the size of a small atom, 0.12nm across. ?p, What wavelength photon would have the same energy
A fire truck attaches two fire hoses to a hydrant to fight a fire. Each hose has a diameter of 20 cm. What is the speed of the water in the fire hoses
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