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Two balls A and B are simultaneously released on two frictionless inclined planes from the positions shown. The inclined planes have equal inclinations. The balls pass through a particular horizontal level 12 s and 4 s after they were released. How long after they were released will they be closest to each other?
An induced emf occurs in a conducting loop of wire 1.12m long as its shape is changed from a circle to an equilateral triangle. What is the average magnitude of the induced emf if the change inn shape occurs in 1 sec and the local 1.0T magnetic field..
A long distance power line is to carry 175 megawatts (1.25x10^8W) of alternating current power at distance of 15.0km at a peak voltage of 1.00MV and a frequency of 60Hz.
What is the temperature of the air? Assume the velocity of sound at 0?C is 332 m/s. Answer in units of ?C.
A circular coil has 30 turns and a radius of 4 cm. The coil is placed in a magnetic field directed along the axis of the coil. The magnitude of the magnetic field varies according to: B (t) = 0.010t + 0.040 t2, where t is in seconds and B is in tesla..
Compute the electric field intensity by using the magnetic field found in part (a). Now check to see that this boundary condition is satisfied to linear terms.
During an isobaric expansion a steady pressure of 200 kPa causes the volume of a gas to change from I L to 3 L. What work is done by the gas?
The magnetic field component of the electromagnetic wave is 15.0 ?T. What is the magnetic energy density of the wave
In the standing wave experiment, the length of the string is 1.400 m. When a mass of 80 grams is hung, the 7th harmonic is obtained. find the frequency of the vibrator
A laser is aimed at the top of a pool of water. The beam makes an angle of 31 degrees to the normal to the water's surface. where will the light beam hit the bottom of the pool relative to its entrance point on the air-water interface
Write a paragraph explaining how Newton's Third Law of Motion is illustrated when a real NASA rocket is launched at Cape Canaveral.
A ball player hits a home run, and the baseball just clears a wall 20.6 m high located 121.0 m from home plate. How much time does it take for the ball to reach the wall
A thick-walled hollow cylinder (inner radius=47 cm, outer radius=66 cm) rolls down a 7° incline. If it starts with a speed of 1.9-m/s, what is its speed after it has travelled 16 m? (m/s).
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