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

What was the American policy toward the end of the Vietnam War? New Federalism detente Vietnamization

Describe how to transform the quantity of the third root of x to the fourth power, to the fifth powerinto an expression with a rational exponent. Make sure you

The _______ in the House can limit the amount of time to debate a bill. A. speaker B. committee of the whole C. rules committee D. discharge petitio

what is the equation of y=x^3 with the transformation: vertical compression by a factor of 1/2, horizontal shift 7 units to the left, reflection across the x-ax

is a 78 degree angle a right,straight,obtuse or acute angle

how did completion of the first transcontinental railroad in 1869 encourage settlement of the american west

Which of the following statements is most likely to be true about differences between men and women in relation to emotional reactions? Women express anger more

Who encouraged Enlightenment ideas but failed to free the serfs a. Peter the Great b. Catherine the Great c. Alexander I

Is discipline the best method for self control?

A trade ____ occurs when a country imports more goods and services than it exports. Answer deficit surplus dividend credit