Physics, 09.11.2020 09:50 korar87181

Why might measuring changes in speed or direction be important?

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Physics, 22.06.2019 01:50, edgardo34

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Physics, 22.06.2019 10:00, nayellisoto15

Asap and show ! a 14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.

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Physics, 22.06.2019 16:00, StayPuftMarshadowMan

Frank just graduated from eighth grade. assuming exactly four years from now he will graduate from high school how many seconds does he have until his high school graduation

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Physics, 22.06.2019 19:40, xman32201

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 earth’s magnetic field, which is 0.50 g. is this value cause for worry?