RichyGmaddayraeliz RichyGmaddayraeliz

18-12-2016
Physics

contestada

A 4 kg bird has 18 joules of kinetic energy and is rolling 3 m/s. find the mass ?

Respuesta :

mathssydney mathssydney

18-12-2016

KE = half of mass times squared speed
18 = 0.5 * mass * (3m/s)^2
18 = 4.5 mass
mass = 18 / 4.5 = 4 kg

Answer Link

Otras preguntas

What is 5a*2 -6a+7a*2+3a-2+8a+7= Distribute and combine like terms

What is FOIL and PEMDAS?

Who were the Tuskegee airmen and how important were they to the war effort? What successes did they have?

The atomic mass of an element is 32.07 u and its atomic number is 16. The number of protons contained in the nucleus of an atom of this element is (A) 16 (B)

Gallon of cleaner are on sale for 50% off the regular price of $3.18. a customer buys one gallon and the cashier $5.00 The customer change is

Gallon of cleaner are on sale for 50% off the regular price of $3.18. a customer buys one gallon and the cashier $5.00 The customer change is

What expression has the value of 0.032 ?A. 3.2 ×10²B. 3.2 ×10²C. 3.2 ×10³D. 3.2 ×10³

Is 3/10 closer to 0,1/2 or 1

what happens to the perimeter when the length of a rectangle is shortened?Please help!

Why is it important that the space in the chest get bigger