Physics, 31.10.2019 00:31 berniceallonce22
Rock x is released from rest at the top of a cliff that is on earth. a short time later, rock y is released from rest from the same location as rock x. both rocks fall for several seconds before landing on the ground directly below the cliff. frictional forces are considered to be negligible. after rock y is released from rest several seconds after rock x is released from rest, what happens to the separation distance s between the rocks as they fall but before they reach the ground, and why? take the positive direction to be downward. s is constant because at the moment rock y is released, the only difference between the rocks is their difference in height above the ground. (b) s is constant because the difference in speed between the two rocks stays constant as they fall c s increases because the difference in speed between the two rocks increases as they fall s increases because at all times rock x falls with a greater speed than rock y
Answers: 3
Physics, 21.06.2019 19:30, nayashuntel
Asample of a gaseous substance changes into a liquid
Answers: 1
Physics, 22.06.2019 13:50, Geo777
Two students, each riding bicycles, start from the same apartment building and ride to the same building on campus, but each takes a different route. the first student rides 1100 m due east and then turns due north and travels another 1430 m before arriving at the destination. the second student heads due north for 1930 m and then turns and heads directly toward the destination. at the turning point, how far is the second student from the destination?
Answers: 3
Physics, 22.06.2019 14:50, MoogleCaliS
Nitrogen (n2) undergoes an internally reversible process from 6 bar, 247°c during which pν1.2 = constant. the initial volume is 0.1 m3 and the work for the process is 121.14 kj. assuming ideal gas behavior, and neglecting kinetic and potential energy effects, determine heat transfer, in kj, and the entropy change, in kj/s. show the process on a t-s diagram.
Answers: 2
Rock x is released from rest at the top of a cliff that is on earth. a short time later, rock y is r...
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