What is the power of an electric toothbrush if it can do 750 joules of work in 75 seconds?

Question

What is the power of an electric toothbrush if it can do 750 joules of work in 75 seconds?

in progress 0
Thành Công 3 years 2021-07-15T21:26:03+00:00 1 Answers 46 views 0

Answers ( )

  1. thienhuong
    0
    2021-07-15T21:27:06+00:00
    Reply

    Power = (work done) / (time to do the work)

    Power = (750 joules) / (75 seconds)

    Power = 10 joules/second

    Power = 10 watts

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )