Physics, 07.11.2020 01:00 tainy98

How much voltage gives 5 amps of current through a 3 Ω light bulb?

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What is the earliest point in the universe that we can observe? why can’t we see back further than this?

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Physics, 22.06.2019 16:30

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Physics, 22.06.2019 22:30

The drag force, fd, imposed by the surrounding air on a vehicle moving with velocity v is given by fd = cdaρv 2/2 where cd is a constant called the drag coefficient, a is the projected frontal area of the vehicle, and ρ is the air density. an automobile is moving at v = 80 kilometers per hour with cd = 0.28, a = 2.3 m2, and ρ = 1.2 kg/m3.