Physics, 17.03.2020 17:31 Lilleypad07
With current technologies and solar collectors on the ground, the best we can hope for is that solar cells will generate an average (day and night) power of about 180 watts/m2 . What total area would we need to cover with solar cells to supply all the power needed for the United States? Give your answer in both square meters and square kilometers.
Answers: 3
Physics, 22.06.2019 08:30
Hey student studies gravity using objects that have the same mass which two objects have the greatest gravitational force acting between them a. 100kg 1.0m 100kg b. 100kg 2.0m 100kg c. 100kg 2.0m 100kg big d. 100kg big 3.0m 100kg big
Answers: 1
Physics, 22.06.2019 11:50
The scalar triple product computes the magnitude m of the moment of a force vector f about a specified line. it is m = (r Ă f) · n, where r is the position vector from the line to the point of application of the force and n is a unit vector in the direction of the line. use matlab to compute the magnitude m for the case where f = [12, â5, 4] n, r = [â3, 5, 2] m, and n = [6, 5, â7].
Answers: 3
Physics, 22.06.2019 16:50
Acommercial refrigerator with refrigerant-134a as the working fluid is used to keep the refrigerated space at -35°c by rejecting waste heat to cooling water that enters the condenser at 18°c at a rate of 0.25 kg/s and leaves at 26°c. the refrigerant enters the condenser at 1.2 mpa and 50°c. if the compressor consumes 3.3 kw of power, determine (a) the mass flow rate of the refrigerant, (b) the refrigeration load, (c) the cop, and (d) the minimum power input to the compressor for the same refrigeration load.
Answers: 2
Physics, 22.06.2019 17:40
Which describes an object in projectile motion? check all that apply.a.gravity acts to pull the object downb.the object moves in a straight path.c.the forward velocity of the object is 0 m/s.d.the objectâs inertia carries it forward.e.the path of the object is curved.
Answers: 2
With current technologies and solar collectors on the ground, the best we can hope for is that solar...
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