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Question Part Points Submissions Used 1 2 3 4 5 -/0.2 -/0.2 -/0.2 -/0.2 -/0.2 0/5 0/5 0/5 0/5 0/5 Total -/1 The intensity of sunlight striking Earth's upper atmosphere (called the solar constant) is 1.35 kW/m2.
(a) Find Erms and Brms due to the sun at the upper atmosphere of Earth. Erms = V/m Brms = µT
(b) Find the average power output of the sun. W
(c) Find the intensity at the surface of the sun. W/m2
(d) Find the radiation pressure at the surface of the sun. Pa
A 130g block slides back and forth on a frictionless surface between two springs, Find the maximum compression of the right-hand spring
A freezer has a coefficient of performance of 6.30. The freezer is advertised as using 430 kW-h/y, On average, how much energy does the freezer use in a single day
Block B rests on a smooth inclined plane of 21 degrees and block A hangs vertically. Compute the acceleration of the system if the mass of block A is 1.08 kg and that of block B is 5.9 kg.
at rest, a light source emits 532 nm light. as it moves along a line connecting it and Earth, observers on Earth measure the wavelength to be 412 nm. What is the sources velocity and direction? Were it to move in opposite direction at the same spe..
Andy (mass 77kg ) uses a 2.7m -long rope to pull Bob (mass 61kg ) across the floor (μk=0.20) at a constant speed of 1.0m/s. What is the mass of the rope
When driving west toward the Rocky Mountains, you see a peak 2.8 above the horizon. Your GPS gives your current elevation as 1500, Find the peak's elevation
A 1800 kg pile driver is used to drive a steel I-beam into the ground. The pile driver falls 6 m before coming into contact with the top of the beam, and it drives the beam 14.0 cm farther into the ground before coming to rest.
A block of mass 2.0 kg oscillates on a spring with spring constant k= 5 N/M. what is the period of oscillation is rad/s?, what is the new period of oscillation
A 35 kg block of ice slides down a frictionless incline 1.6 m along the diagonal and 0.63 m high, Find the magnitude of the worker's force. How much work is done on the block by the worker's force
A 340 kg piano slides 3.7 m down a 33° incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. The effective coefficient of kinetic friction is 0.37.
A 1000 kg car carrying four 76 kg people travels over a rough "washboard" dirt road with corrugations 4.0 m apart which causes the car to bounce on its spring suspension. The car bounces with utmost amplitude when its speed is 18 km/h. The car now ..
You are traveling on an airplane, The velocity of the plane with respect to the air is 190 m/s due east, What is the speed of the plane with respect to the ground
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