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Electromagnetic waves (light) can form standing waves. In a certain standing wave pattern formed by microwaves, the distance between a node and an adjacent antinode is 0.5 cm.
What is the microwave frequency?
Consider the 642 N weights held by two cables shown. The left-hand cable had tension T2 and makes an angle of thelta2 with ceiling. The right-hand cable had tension 460 N and makes an angle of 47 degrees with the ceiling.
The distance between the eyepiece and the objective lens in a certain compound microscope is 12.7 cm. The focal length of the objective is 0.540 cm, determine the overall magnification of the microscope
A rock is thrown vertically upward with a speed of 19.0m/s from the roof of a building that is 70.0m above the ground. What is the speed of the rock just before it strikes the ground
A sound source emits sounds of frequency 190 Hz that travel by still air at 340 m/s. The listener moves at 75 m/s relative to still air toward the stationary source. What is the wavelength of the sound between source and listener.
What is the magnitude of the acceleration caused by magnetic force? Ignore the gravitational force acting on the electron.
The height of a helicopter above the ground is given by h = 3.15t3, How long after its release does the mailbag reach the ground
A modern microscope is equipped with a turret that has three objectives with focal lengths of 16 mm, 4.0 mm, and 1.6 mm, What are the greatest and least magnifications possible
A hot air heating system rated at 84,000 Btu/hr has an efficiency of 65%. The furnace fan can move 225 ft3 of air per minute. If the air enters the furnace at 60.0°F, determine the temperature of the outlet air.
A rectangle measuring 30.0 {rm cm} by 40.0 {rm cm} is located inside a region of a spatially uniform magnetic field of 1.30 T, with the field perpendicular to the plane of the coil. The coil is pulled out at a steady rate of 2.00 {rm{ cm/s}} travelli..
What is final speed of the block
What are the displacement and velocity of the point on the cord. What is the magnitude of the acceleration of one of the liners toward the other because of their mutual gravitational attraction.
their debt flotation costs are currently estimated to be 4% of the issue's value. GST's federal-plus -tax rate is 40%. Illustrate what is the dollar floatation cost on the new issue?
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