Physics, 17.05.2021 21:20 deborah0

ALWAYS use significant figure rules. Remember that these rules apply to all numbers that are measurements. In working this problem, assume the value of "g" to be 9.8 m/s2 with two (2) significant digits unless otherwise stated.
A 500-kg elevator is raised to a height of 10 m in 10 seconds. Calculate the power of the motor.

490 W
49,000 W
4900 W
490,000 W

Answers: 1

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 18:30, Lamr

If a star is moving toward earth, it is

Answers: 2

continue

Physics, 22.06.2019 21:50, WampWamp8751

Determine the moment of the force f about an axis extending between a and c. express the result as a cartesian vector. a is at the origin, c is at (4,3,0) and f = (4i + 12j -3k) lb coming out of b (4,3,-2).

Answers: 2

continue

Physics, 23.06.2019 04:31, redrhino27501

The radioactive isotope of lead, pb-209, decays at a rate proportional to the amount present at time t and has a half-life of 3.3 hours. if 1 gram of this isotope is present initially, how long will it take for 80% of the lead to decay? (round your answer to two decimal places.)

Answers: 2

continue

Physics, 23.06.2019 05:10, genesisheaven1

Which of the following should not be included in a great summary? a. blaming your lab partner b. new questions your experiment has generated c. your prediction d. your investigation plan

Answers: 2

continue

You know the right answer?

ALWAYS use significant figure rules. Remember that these rules apply to all numbers that are measure...