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A beam of light whose wavelength is 471 nanometers falls on a barrier containing a pair of very narrow slits whose centers are separated by 0.543 millimeter. Determine the ratio of the intensity at an angle of 0.135 degree from the centerline to the intensity at the peak of the central maximum?
The emissivity of the human skin is 97.0 percent. Use 35.0 °C for the skin temperature and approximate the human body by a rectangular block with a height of 1.81 m, Calculate the power emitted by the human body
Wrongly called for a foul, an angry basketball player throws the ball straight down to the floor. If the ball bounces straight up and returns to the floor 2.2 s after first striking it, what was the ball's greatest height above the floor?
a 60.0-kg runner expends310w of power while running a marathon. assuming that 11.0of the energy is delivered to the
When resting, a person has a metabolic rate of about 3.0 105 joules per hour. The person is submerged neck-deep into a tub containing 1.12 103 kg of water at 22.10° C. find the water temperature after half an hour
A 0.570 kg ball is dropped from rest at a point 1.50 m above the floor. The ball rebounds straight upward to a height of 0.800 m. Illustrate what are the magnitude and direction of the impulse of the net force applied to the ball during the collis..
A uniform thin rod of length L=2.5 m and mass 2 kg can rotate in a horizontal plane about a vertical axis through its center. The rod is at rest when a 0.3 kg ball of putty, moving in the horizontal plane of the rod, hits and sticks to one end. As..
A cylindrical shell of radius 7cm and length 2.4 cm has charge uniformly distributed on its surface. The magnitude of the electric field at a point 19 cm radically outward from its axis, at the midpoint of the shell, is 36kN/C.
A 10 kilogram block is set in motion up a 20o inclined plane with an initial speed of 8.0 m/s. Find the change in gravitational potential energy of the block
electric charge is uniformly distributed inside a nonconducting sphere of radius 0.30 m. the electric field at a point
A series RLC circuit has R=2.6?, L=9.5 mH, C=2.45 mF, Vm=110V, and ?=377 rad/s. find the phase difference between the voltage and the current
an electron moves through an electric field and its speed drops from 2800 ms to 1900 ms. whats the potential difference
A uniform rod of mass 3.05×10?2kg and length 0.450m rotates in a horizontal plane about a fixed axis through its center and perpendicular to the rod. What is the angular speed of the rod after the rings leave it?
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