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Two waves traveling in the same direction combine. The constituent waves have identical angular wave numbers, angular frequencies, and amplitudes. If the combined wave has an amplitude of 2.55 m and a phase constant of 1.43 rad, what are
(a) the phase difference between the constituent waves, and
(b) the amplitude of the constituent waves?
When G was first measured by Henry Cavendish, newspapers of the time hailed his experiment as "weighing Earth experiment." And Why.
A particle with a charge of 4.10nC is in a uniform electric field E? directed to the left, What work was done by the electric force and What is the magnitude of E
What impulse Ft should be supplied to bring the ball to rest? If the ball is stopped in 0.03 s, what is the average force of the ball on the catcher's hand.
a thin double convex lens is to focus the image of an object onto a screen so that the image is life sized. how far is the screen from the object
A current of 18.0 mA is maintained in a single circular loop of 3.70 m circumference. Calculate the magnetic moment of the loop.
Suppose that you wish to fabricate a uniform wire out of 1.00 g of copper. Assume the wire has a resistance R = 0.700 , and all of the copper is used. Illustrate what will be the length of the wire?
A 80.5 kg firefighter slides down a pole while a constant frictional force of 300 N retards her motion. Find the firefighter's speed just before she collides with the platform
A mass of 0.450 kg rotates at constant speed with a period of 1.45 s at a radius of R 0.140 m . What is the rotation period for a mass of 0.550kg at the same radius
A 1.6kg , 20-cm-diameter turntable rotates at 50rpm on frictionless bearings. What is the turntable's angular velocity, in rpm, just after this event
A certain freely falling object requires 1.85s to travel the last 31m before it hits the ground. From what height above the ground did it fall.
What will be the equilibrium temperature when a 223 g block of copper at 258 C is placed in the 178 g aluminium calorimeter cup containing 874 g of water at 13.2 C.
At high noon, the Sun delivers 825W to each square meter of a blacktop road. If the hot asphalt loses energy only by radiation, what is its equilibrium temperature.
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