Physics, 25.02.2020 22:18 nataliatf9833
Two identical disks of mass M, radius R rotate about fixed axes of radius r with negligible mass. Identical masses, m, are attached to strings wrapped around the axis and the outer rim as shown in the figure. The masses are then released from rest at the same height h above the ground. Which one takes longer to hit the ground, and which mass m, has more kinetic energy when it hits the ground?
A. The mass in I hits the ground first and has more kinetic energy. The mass in I hits the ground first.
B. The mass in II has more kinetic energy.
C. The mass in II hits the ground first and has more kinetic energy.
D. The mass in II hits the ground first. The mass in I has more kinetic energy.
E. Both masses reach the ground at the same time and have the same kinetic energy.
Answers: 2
Physics, 21.06.2019 19:00
When the velocity of an object is doubled, by what factor is its momentum changed? by what factor is its kinetic energy changed? a) the momentum is zero. b) the momentum is not zero. c) difficult to say.
Answers: 3
Physics, 22.06.2019 15:50
The california mussel (mytilus californianus) attaches itself to a rock or other solid surface with a bundle of filaments known as the byssus. imagine that 15.0 j of work is done to stretch the distal end of the byssus. it releases 10.8 j of thermal energy as it relaxes. what is the resilience of the distal end of the byssus?
Answers: 2
Physics, 23.06.2019 00:30
Madison lives near the ocean. she’s formed a hypothesis that increased concentrations of salt in the air speeds the corrosion of certain metals. if madison plans to test this hypothesis, she will have to deal with the following variables in her experiment: dependent variable: independent variable: one possible confounding variable:
Answers: 1
Physics, 23.06.2019 07:00
What is the period of a wave traveling 5 m/s if its wavelength is 20 m/s
Answers: 1
Two identical disks of mass M, radius R rotate about fixed axes of radius r with negligible mass. Id...
Computers and Technology, 26.09.2019 21:30
Mathematics, 26.09.2019 21:30
Arts, 26.09.2019 21:30
Mathematics, 26.09.2019 21:30
Spanish, 26.09.2019 21:30
Health, 26.09.2019 21:30
Biology, 26.09.2019 21:30
Mathematics, 26.09.2019 21:30
Health, 26.09.2019 21:30
Mathematics, 26.09.2019 21:30