What is the frequency of a simple pendulum 2.7 m long in the following situations?
(a) in a r...
Physics, 17.01.2020 22:31 savannahvargas512
What is the frequency of a simple pendulum 2.7 m long in the following situations?
(a) in a room that is stationary hz
(b) in an elevator accelerating upward at a rate of 1.1 m/s2 hz
(c) in free fall hz
Answers: 3
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Which changes would result in a decrease in the gravitational force btween two objects? check all that apply
Answers: 1
Physics, 22.06.2019 19:30, isiahb123
A47.2 g block of copper whose temperature is 480 k is placed in an insulating box with a 91.8 g block of lead whose temperature is 200 k. (a) what is the equilibrium temperature of the two-block system? (b) what is the change in the internal energy of the two-block system between the initial state and the equilibrium state? (c) what is the change in the entropy of the two-block system? the heat capacities of copper and lead are 386 j/kg·k and 128 j/kg·k, respectively.
Answers: 1
Physics, 22.06.2019 19:40, flore9584
Which of the following is a characteristic shared by both electron and light microscopes? a. they both employ the use of objective lenses. b. both microscopes require an internal camera to visualize the specimen. c. both microscopes have a resolving power of 0.01 nm. d. they both utilize white light to magnify the specimen.
Answers: 2
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