Physics, 12.04.2021 07:10 kerstynsharp08
1. A cart with a mass of 3.00 kg rolls from the top of an inclined
that is 7.50 m long with its upper end at a height of 3.75 m above
the ground. The force of friction acting on the cart as it rolls is
4.50 N in magnitude. (a) What is the change in gravitational
potential energy when the cart moves from the top of the inclined
plane to ground level? (b) What is the work done by friction?
Answers: 2
Physics, 21.06.2019 23:10
A248-g piece of copper is dropped into 390 ml of water at 22.6 °c. the final temperature of the water was measured as 39.9 °c. calculate the initial temperature of the piece of copper. assume that all heat transfer occurs between the copper and the water. remember, the density of water is 1.0 g/m
Answers: 1
Physics, 22.06.2019 11:30
(1 point) match the differential equations and their vector valued function solutions. you may wish to multiply at least one solution out fully, to make sure that you know how to do it. you can get the other answers quickly by process of elimination and just multiply out one row element.
Answers: 2
Physics, 22.06.2019 11:30
Which accounts for an increase in the temperature of a gas that is kept a constant volume
Answers: 1
Physics, 22.06.2019 12:30
Cathy is pedaling down a steep hill on her bicycle and wants to be able to coast up the next hill, which is 25 meters high, without pedaling. cathy and her bicycle have a mass of 75 kg. assuming her bicycle is 100% efficient, what would her speed have to be?
Answers: 3
1. A cart with a mass of 3.00 kg rolls from the top of an inclined
that is 7.50 m long with its upp...
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