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

Alex won 16% of the games he played. If he won 40 games how many games did he play?

Question Consider the steps needed to rewrite the following expression in standard form. 23(15x+6y)+25(12x+13y) Match an expression with the appropriate step.

4. Lupita tiene varios pentágonos y hexágonos de madera. Si en total sus piezas tienen 37 vértices, ¿cuántos hexágonos tiene? A) 2 C) 4 B) 3 D) 5 2

Write a debate, money is better than knowledge

10-10×10+10=? ????????

How long does a black panther live

18. What do complex carbohydrates contain that simple carbohydrates do not?

True or False – The British colonized Africa primarily in the northwest region, and the French colonized the south. Question 4 options: a) True b) False

what is the answer for 42/ 2 +36

The chemical equation for a reaction between nitrogen and oxygen is shown. N2 + O2 → 2NO Based on the diagram, which statement best describes the energy change