Physics, 03.05.2021 18:40 averyiodonnell
A railroad car moving west collides with an identical stationary car. The two cars couple together and move west. How would the speed of the coupled cars compare to the original speed of the moving car?
Answers: 2
Physics, 21.06.2019 15:40
An apple is falling from a tree. disregarding air resistance, which diagram shows the free-body diagram of the force or forces acting on the apple?
Answers: 3
Physics, 22.06.2019 19:40
Currents in dc transmission lines can be 100 a or higher. some people are concerned that the electromagnetic fields from such lines near their homes could pose health dangers. for a line that has current 150 a and a height of 8.0 m above the ground, what magnetic field does the line produce at ground level? express your answer in teslas and as a percentage of the earthβs magnetic field, which is 0.50 g. is this value cause for worry?
Answers: 1
Physics, 23.06.2019 00:00
A15,000 kg rocket traveling at +230 m/s turns on its engines. over a 6.0 s period it burns 1,000 kg of fuel. an observer on the ground measures the velocity of the expelled gases to be β1,200 m/s.
Answers: 3
Physics, 23.06.2019 00:30
3. which is not a primary color of light? blue red green yellow
Answers: 1
A railroad car moving west collides with an identical stationary car. The two cars couple together a...
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