madisong57 madisong57

03-03-2016
Physics

contestada

A 49 Newton rock is lifted 2 meters in 5 seconds.
How much work is done?
What power is used?

Respuesta :

olemakpadu olemakpadu

03-03-2016

Work done is potential energy = mgh

mg = weight of the stone = 49 N

h = 5 m

Work done = (mg)h = 49 * 5 = 245 Joules.

Power = Work done / Time taken

= 245 / 5 = 49 Watts.

Answer Link

Otras preguntas

Vivian (28) is the beneficiary of her deceased grandmother's traditional IRA. She received a Form 1099-R reporting the $10,000 gross distribution. The form had

can someone help me?

In the adjoining figure ABCD is a rhombus and angle abd is equal to 50 degree. find 1.angle CAB 2.angle BCD 3.angle ADC

3/5 + 7/10 - 1/2=?? Solve

462 is what percent of 600? Answer: %

Which of the following functions best describes this graph?

a) Ammonia and nitrogen monoxide react together according to the following equation: 4NH3(g) + 6NO (9) - 5N2 (9) + 6H20 (g) 50.0 dm3 of ammonia is reacted with

Katrina has 8 angelfish in her aquarium. She also has g goldfish. Which expression represents the total number of fish Katrina has in her aquarium?

Which equation models the problem below if c represents the number of babies whose eyes are closed? There are 12 babies in a photograph, and 9 of them have thei

Helppp pls :))))))))