mizzymtherrybear mizzymtherrybear

02-11-2016
Physics

contestada

What is the gravitational potential energy of a ball with a weight of 72 N when it is sitting on a shelf 1.4 m above the floor?

Respuesta :

LittleRedMe LittleRedMe

02-11-2016

First you must convert the weight to mass. So:

W = mg (assuming that gravity is 9.8 Nkg-1)

m = W/g
= 72 / 9.8
= 7.3kg

Then we can use Ep = mgh

= 7.3*9.8*1.4

= 100.1N

Answer Link

Otras preguntas

On which issue did george w. bush attempt to "steal the clothes of the other party" and demonstrate that his administration could endorse moderate policy propos

Find the value of x.

denny buys 2.5 ounces of bird seeds.Each ounce of bird seeds cost $0.18 .How much does denny spend flr the birt seeds?

Lorenzo went to the store with $20. He bought some cans of soup for $2 each and a gallon of milk for $3. He had $1 left over. This equation gives s, the number

Randomly selecting a seventh grader from a school that has 256 sixth graders, 225 seventh graders ,and 275 eighth graders

Write a short response to summarize the disagreement between any two people or organizations in the article. (Issue Overview: GMO’s and Engineered Food)

(25 Points) How do taxes support the economy?

what was the main goal of the military Reconstruction Act

Please help and thank you

Review the following event from the War of 1812. On August 24, 1814, British troops entered Washington, DC, and set fire to the White House. Which option identi