angeld12227849 angeld12227849
  • 03-04-2020
  • Physics
contestada

How much work is done by gravity when a pine cone (of mass 50g) falls from the top of a tree, 9 m high?

Respuesta :

olatunbosunadeoke
olatunbosunadeoke olatunbosunadeoke
  • 04-04-2020

Answer: 4.41 joules

Explanation:

Given that:

work is done by gravity = ?

Mass of pine cone (m) = 50g

Convert mass in grams to kilograms

Since 1000g = 1kg

50g = (50/1000) = 0.05kg

Height of tree (h) = 9 m

Apply the formula for work,

Work = mass x acceleration due to gravity x height

Acceleration due to gravity has a value of 9.8m/s^2

Work = mgh

Work = 0.05kg x 9.8ms^2 x 9m

Work = 4.41J

Thus, 4.41 joules of work is done by gravity.

Answer Link
isaac040105 isaac040105
  • 03-11-2021

Answer:

4.5 J

Explanation:

I took the test

Answer Link

Otras preguntas

how many 3/4 are in 12 2/4
Which of the following is not a musical parameter
Can someone help me answer part b please .As I have no idea what it is ?
Strontium 90 is a radioactive isotope that decays according to the eqaution A t = A 0 e − 0.0244 t , where A 0 is the initial amount present and A t is the
How did the 1970’s reveal the limits of the global influence of the US?
Why do rulers use art to legitimize their rule?
What is the volume of 3.00 mol of neon gas at STP
A company selling light bulbs claims in its advertisements that its light bulbs’ average life is 1000 hours. In fact, the life span of these light bulbs is norm
What are the characteristics of a virtual image? Check all that apply.
Find the area of the given figure.