Physics, 31.10.2019 21:31 xdimplesjoon
An object has a charge of -3.5 ? c. how many electrons must be removed so that the charge becomes 1.4 ? c?
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Asimply means that over time there was some sort of change.
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Which notation is used to represent an alpha particle? a. b. c. d.
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Physics, 22.06.2019 19:30
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, 23.06.2019 00:50
Aplayer uses a hockey stick to push a puck at a constant velocity across the ice. the weight of the puck is 170 n. the coefficient of friction is 0.0600. with what force must the player push the puck so that his force just equals the frictional force? 28.3 n 0.999 n 0.102 n 0.0104 n
Answers: 1
An object has a charge of -3.5 ? c. how many electrons must be removed so that the charge becomes 1....
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