Physics, 04.07.2019 08:30 lilakatedancer
Objects of masses m1=4.00kg and m2 = 9.00kg are connected by a light string that passes over a frictionless pulley. the object m1 is held at rest on the floor, and m2 rests on a fixed incline of (theta)=40.0 degree. the objects are released from rest, and m2 slides 1.00m down the incline in 4.00s. determine a) the acceleration of each object, b) the tension in the string, and c) the coefficient of kinetic friction between m2 and he incline.
Answers: 1
Physics, 21.06.2019 17:10
The âdeath throesâ of stars are amongst the most complex phenomena in all of astronomy, and the âcorpsesâ of stars amongst the most energetic and exotic objects in existence. beginning at the end of the core helium fusion stage in a starâs life, describe in detail the post-main sequence development of both (a) a 1.0 solar mass star, and (b) a 25.0 solar mass star. in what significant ways do they differ? what role does each of these types of stars play in the "star-gas-star" cycle and the evolution of chemical elements in our galaxy?
Answers: 1
Physics, 22.06.2019 02:00
Askydiver weighing 140 lb (including equipment) falls vertically downward from an altitude of 19,000 ft and opens the parachute after 18 s of free fall. assume that the force of air resistance, which is directed opposite to the velocity, is of magnitude 0.55|v| when the parachute is closed and is of magnitude 14|v| when the parachute is open, where the velocity v is measured in ft/s. assume that acceleration due to gravity has magnitude 32 ft/s/s; remember that weight is the product of mass and gravitational acceleration. (a) find the speed of the skydiver when the parachute opens. (b) find the distance fallen before the parachute opens. (c) what is the limiting velocity vl after the parachute opens? (d) determine how long the sky diver is in the air after the parachute opens. (e) plot the graph of velocity versus time from the beginning of the fall until the skydiver reaches the ground.
Answers: 1
Physics, 22.06.2019 02:30
The act of moving from one place to another. a. locomotor b. aerobic c. stationary d. static
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Objects of masses m1=4.00kg and m2 = 9.00kg are connected by a light string that passes over a frict...
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