madisong57 madisong57

03-03-2016
Physics

contestada

A 49 Newton rock is lifted 2 meters in 5 seconds.
How much work is done?
What power is used?

Respuesta :

olemakpadu olemakpadu

03-03-2016

Work done is potential energy = mgh

mg = weight of the stone = 49 N

h = 5 m

Work done = (mg)h = 49 * 5 = 245 Joules.

Power = Work done / Time taken

= 245 / 5 = 49 Watts.

Answer Link

Otras preguntas

(50 POINTS!!!) Unit 5 Investigation Lab: Series and Parallel Circuits Quiz What was the voltage source for the circuit? Question 1 options: battery light bulb l

How did the Battle of Saratoga affect the American Revolution? A)French troops joined the war on behalf of the colonists. B)The Hessian mercenaries were elimina

Comprensión del texto visual Instrucciones: Contesta las preguntas según la información en esta actividad. 1. ¿Cuántos buses con destino a Manuel Antonio sale

Find the scale factor of ABC to MNO.

22) Type the antecedent to which the bold pronoun(s) refers in the following sentence. Use exact spelling. We own and operate our own grocery store and cafe.

What is the surface area, in square centimeter, of the square pyramid?

the kuiper belt is an area of rocks, dust and ice that................ Please help I will mark brainlest

Identify one abiotic factor present in a pond ecosystem and explain how this abiotic factor would affect the frogs in a pond

please help with this math question

Which of these details is an anecdote?