commanderbeast945
commanderbeast945 commanderbeast945
  • 02-10-2019
  • Physics
contestada

when a book falls from a shelf to the ground without anyone pushing on it, no work is done to the book. True or False

Respuesta :

AL2006
AL2006 AL2006
  • 02-10-2019

That's false.

-- The force on the book is its weight.

-- The force acts through the distance the book falls.

-- The work done on the book is

(weight) x (length of the fall)

-- Gravity DOES the work.

Answer Link

Otras preguntas

What is the value of x?​
f (x) = 3 x -1 and g(x) = x+ 2,find (f+ g) (x)
I need help i don't know the answer and the answer can you help me? you'll get 15 points if you answer this question
A store has an item on sale for 30% which represents a discount of $27.75. What is the original price of this item?
Simplify: 9x3 + 8x2 + 3x2 A. 20x7 B. 9x3 + 11x4 C. 9x3 + 11x2 D. 9x3 + 24x4
Most of the revenue that magazine companies generate comes from: A. store and newsstand sales. B. publishing content articles. C. selling space to adv
Help me on 5. Answer please
Jada is solving the equation shown below. -1/2 (x+4) = 6 Which is a possible first step to begin to simplify the equation? Check all that apply. Divide both sid
Approximately when and how did Buddhism come to Japan? (Needs some explanation)
Find the missing values for the exponential function represented by the table below. x y -2 7 -1 10.5 0 15.75 1 2