Physics, 08.04.2021 21:50 georgeonnatreev3400
A 50 kg refrigerator is located on a skyscraper that is 250 m above ground. What is the
potential energy of the refrigerator?
A) 12,500 joules
B) 5 joules
C) 122,500 joules
Answers: 2
Physics, 21.06.2019 15:00
The equation that describes a transverse wave on a string is y = (0.0120 m)sin[(927 rad/s)t - (3.00 rad/m)x] where y is the displacement of a string particle and x is the position of the particle on the string. the wave is traveling in the +x direction. what is the speed v of the wave?
Answers: 1
Physics, 22.06.2019 05:50
Sawyer is studying diffraction. he draws a diagram of a plane wave to show how light waves travel. which best describes sawyerâs error? the wave fronts should be perpendicular to the direction in which the waves move. the arrow showing the direction of movement of the waves should be pointing to the left. the arrow showing the direction of movement of the waves should be pointing downward. the wave fronts should be both parallel and perpendicular to the direction in which the waves move.
Answers: 2
Physics, 22.06.2019 10:30
Aparticle moves in the xy plane with constant acceleration. at time zero, the particle is at x = 6 m, y = 8.5 m, and has velocity ~vo = (9 m/s) ËÄą + (â2.5 m/s) Ëďž . the acceleration is given by ~a = (4.5 m/s 2 ) ËÄą + (3 m/s 2 ) Ëďž . what is the x component of velocity after 3.5 s? answer in units of m/s.
Answers: 1
Physics, 22.06.2019 10:30
Agroup of students were investigating the force of gravity. they began by dropping a foam ball from a height of 3 meters into a bucket of sand. the ball hit the sand in 0.306 seconds. they dropped additional balls of approximately the same diameter, but of different masses. here is the data they collected. based on this experiment and the collected data, what would their conclusion be?
Answers: 1
A 50 kg refrigerator is located on a skyscraper that is 250 m above ground. What is the
potential e...
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