1. stephanie schneider is running down the street at 10 m/s. she sees a double-tall latte on
t...
Physics, 27.01.2020 18:31 hayleighsmall111
1. stephanie schneider is running down the street at 10 m/s. she sees a double-tall latte on
the road ahead of her and starts sprinting. after 5 seconds have passed, stephanie is
running at 15 m/s. assuming she does not change direction, what was stephanie's
acceleration?
Answers: 3
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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.
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Consider a u-tube whose arms are open to the atmosphere. now equal volumes of water and light oil (ρ = 49.3 lbm/ft3) are poured from different arms. a person blows from the oil side of the u-tube until the contact surface of the two fluids moves to the bottom of the u-tube, and therefore, the liquid levels in the two arms are the same. if the fluid height in each arm is 30 in, determine the gage pressure exerted by the person on the oil by blowing.
Answers: 3
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