Physics, 11.07.2019 23:30 kylemartinez13
The two objects in the drawing are made from the same material (emissivity = 0.500) and have a temperature of 366 k. one is a cube of edge length r0 = 0.280 m, and the other is a sphere of radius they are placed in a room whose temperature is 435 k. what is the magnitude of the difference between the net power absorbed by the cube and the sphere? the surface area of a sphere is 4Ï€r2.
Answers: 3
Physics, 21.06.2019 16:00
Ahonda civic travels in a straight line along a road. its distance x from a stop sign is given as a function of time t by the equation x(t)= î± t2â î² t3, where î± = 1.53 m/s2 and î² = 5.50ã10â2 m/s3 .
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Physics, 22.06.2019 09:30
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Answers: 1
Physics, 22.06.2019 12:10
Ablock having mass m slides down an inclined plane. the force of friction between the block and the inclined plane is f, the block's weight is m g, and the normal force is n. (a) draw a free – body force diagram showing the forces acting on the block. (b) write down all relevant newton’s equations for a given situation.
Answers: 1
Physics, 22.06.2019 16:30
An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. but she does have devices to measure distance and time accurately. she knows her own mass is 77.4 kg , but she is unsure of the mass of a large gas canister in the airless rocket. when this canister is approaching her at 3.50 m/s , she pushes against it, which slows it down to 1.30 m/s (but does not reverse it) and gives her a speed of 2.60 m/s . what is the mass of the canister?
Answers: 1
The two objects in the drawing are made from the same material (emissivity = 0.500) and have a tempe...
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