Physics, 01.10.2021 05:20 nikeabrown01
A painter and his helper are standing on a scaffold. The painter weighs 400 newtons. The helper weighs 300 newtons. The tension in a rope A is 925 newtons. The tension in rope B is 825 newtons. What Is the weight of the board?
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If the speed of a particle triples ,by what factor does its kinetic energy increase?
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What is the earliest point in the universe that we can observe? why canβt we see back further than this?
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In which of the following cases is work being done on an object? question 2 options: pulling a trailer up a hill carrying a box down a corridor suspending a heavy weight with a strong chain pushing against a locked door
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Which best describes how fluids change as they travel through different portions of the convection currents? they change to solids at the outer portion of the convection currents. they change to solids at the inner portion of the convection currents. they become more dense at the outer portion of the convection currents. they become more dense at the inner portion of the convection currents
Answers: 2
A painter and his helper are standing on a scaffold. The painter weighs 400 newtons. The helper weig...
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