Two piles of heavy boxes must be lifted onto a shelf. each pile has 20 boxes and each box is the same size and weight. tom and claudia are each responsible for a pile. tom lifts each box straight up from the pile to the shelf. claudia places a long gradual ramp that leads from pile to the shelf. she pushes each box up the ramp until it rests on the shelf. who used more force
Answers: 2
Physics, 21.06.2019 23:30, southerntouch103
A175 g lump of molten lead at its melting point (327 c) is placed into 55.0 g of water at 20.0 c. the specific heat of lead is 130.j/kg c and the hf of lead is 20,400 j/kg. when the lead and the water have reached equilibrium, what is the temperature of the mixture?
Answers: 3
Physics, 22.06.2019 12:00, Redeyestudio53
This is for my 8th grade science class, i really donβt understand. can someone me? , lol.
Answers: 1
Physics, 22.06.2019 12:30, shotocaffe
What is the power rating of the lightbulb if 3.0 a flow through it when connected to a 15 v battery
Answers: 1
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