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Physics, 21.10.2020 02:01 noellelovebug1214
Levi is installing a heat pump. He installed the pipes two feet deep. He then installed the unit within the house and
installed a thermostat inside to regulate the heat pump. Lastly, he installed a furnace in the basement.
Which best describes Levi's errors?
O The pipes need to be at least six feet deep to avoid the freezing ground, and he did not need to install a furnace.
O He did not need to install a furnace, and pipes are not necessary in the installation and function of a heat pump.
O Thermostats should be installed directly to the outside unit, and the pipes need to be at least six feet deep to avoid
the freezing ground.
O Pipes are not necessary in the installation and function of a heat pump, and thermostats should be installed directly
to the outside unit.
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Physics, 22.06.2019 16:40, Crxymia
Aparticle's position is given by x = 3.00 - 9.00t + 3t2, in which x is in meters and t is in seconds. (a) what is its velocity at t = 1 s? (b) is it moving in the positive or negative direction of x just then? (c) what is its speed just then? (d) is the speed increasing or decreasing just then? (try answering the next two questions without further calculation.) (e) is there ever an instant when the velocity is zero? if so, give the time t; if not, answer "0". (f) is there a time after t = 3 s when the particle is moving in the negative direction of x? if so, give the time t; if not, answer "0".
Answers: 3
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Levi is installing a heat pump. He installed the pipes two feet deep. He then installed the unit wit...
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