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

Which expressions represent the difference of exactly two expressions? Choose 3 answers: Choose 3 answers: (Choice a. A 6(x+7)−26(x+7)-26(x+7)−26, left parenth

Why are alternative fuels called green energy?

what is the difference between the mean and the median of the following distribution? {1,1,1,2,2,2,2,3,3,4,4,4,4,5,5,6,7,7,8,8,9}. a) .17 b).19 c)0 d).26

Geometry math question no Guessing and Please show work thank you

What is the maximum number of possible extreme values for the function,f(x)=x^4+x^e-7x^2-x+6 ? A.5 B.3 C.2 D.4

What is the primary way that Henry Ford affected Americans' lives? A)He made Model T cars into status symbols for those who could afford them. B)He made custom

What is the slope of EC?

Air near the earth's surface tends to be ________.

The variable z is proportional to x and inversely proportional to y. When x is 12 and y is 4, z has the value 57 what is the value if z when x=18 and y=10

How can you use a rate to compare the costs of two boxes of cereal that are different sizes?