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Suppose that a 7 centimeter diameter, 120 Watt light bulb radiates all its energy as a single wavelength of visible light.
A. Find the electric field strength at the surface of the bulb.
B. Find the magnetic field strength at the surface of the bulb.
The meter detects the reflected sound waves and measures a beat frequency of .30X10^5Hz. Determine the speed of the baseball
A block starts with a certain speed at the top of a frictionless inclined plane with an unknown angle to the horizontal. To calculate the time required for the block to reach the bottom of the plane
A student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed of 19.0 m/s. With what speed and angle of impact does the stone land
A boy pulls his brother on a sled horizontally across all snow-covered field. The coefficient of friction between the snow and the sled is 0.24. what power is being expended by the boy
4.60g of nitrogen gas at 22.0?c and an initial pressure of 3.30atm undergo an isobaric expansion until the volume has
A 0.060-kg tennis ball, moving by a speed of5.44m/s , has a head-on collision with a 0.080-kg ball initially moving in the same direction at a speed of 3.80m/s . Suppose that the collision is perfectly elastic.
A 60. kg student jumps from the 10. meter platform at EKU'sswimming complex in to the pool below. Determine her PEg at the top of the platform.
Two blocks are free to slide along the frictionless wooden track shown below. The block of mass m1 = 4.94 kg is released from the position shown, Calculate the maximum height to which m1 rises
A train travelling at 50.0 km/h approaches another train moving toward the first at 90.0 km/h, if they are 35 km apart on a straight track how long does it take before they meet
A converging lens with a focal length of 7 centimeter forms an image of a 5 millimeter tall real object that is to the left of the lens. Find where are the object and image located
A particle moves horizontally in uniform circular motion, over a horizontal xy plane, What are the coordinates of the center of the circular path
A star rotates with a period of 30 days about an axis during its center. The period is the time it takes a point on the star's equator to make one complete revolution around the axis of rotation. After the star undergoes a supernova explosion, the st..
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