jenniferlackey717 jenniferlackey717

02-04-2020
Physics

contestada

What is the power when a crane lifts a piece of pipe from the ground to a certain height, doing 15000 J of work in 25s?
A) 375000 W

B) 600 W

C) 100 W

D) 350 W

Respuesta :

olatunbosunadeoke olatunbosunadeoke

02-04-2020

Answer: Option B) 600 W

Explanation:

Since power is the rate of work done per unit time

i.e Power = work/time

Given that:

power of a crane = ?

work done by crane = 15000 J

Time = 25 seconds

Power = 15000J / 25s

Power = 600 watts

Answer Link

Otras preguntas

What is this phrase in English? "Mi madre es muy inteligente."

Complete the sentence with a word that means the same as "rare"

A sentence that asks a question ends with a period. True False

Find the coordinates of the midpoint of the line segment with endpoints (6, -2) and (-3, -2). midpoint: (x, y) = ( )

Hey, How are you what you doing

Plot the graph of 2x - y = 6 and y = 4. Write down the coordinates of the point where the lines intersect

Kara is running a marathon. After 2 hours, Kara has run 13 miles. After 4 hours, Kara has run 26 miles. What is her speed, in miles per hour?

(1) When we call someone “pig” or “swine,” we do not mean it as a compliment. (2) But pigs do not deserve to be used as a symbol for an insult. (3) They are pro

1.07 x 104 -3.38 × 10³

From earth why dose the sun look so much larger than other stars ? Is the sun actually larger than the stars outside our solar system ? Explain your ideals belo