1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
olga nikolaevna [1]
2 years ago
7

A pail in a water well is hoisted by means of a frictionless winch, which consists of a spool and a hand crank. When Jill turns

the winch at her fastest water-fetching rate, she can lift the pail the 28.0 m to the top in 11.0 s. Calculate the average power supplied by Jill's muscles during the upward ascent. Assume the pail of water when full has a mass of 7.30 kg.
Physics
1 answer:
Sveta_85 [38]2 years ago
6 0

Answer:

182.28 W

Explanation:

Here ,

m = 7.30 Kg

distance , d= 28.0 m

time , t = 11.0 s

average power supplied = change in potential energy/time

average power supplied = m×g×d/time

average power supplied = 7.30×9.81×28/11

average power supplied = 182.28 W

the average power supplied is  182.28 W

You might be interested in
Why does a satellite in a circular orbit travel at a constant speed? why does a satellite in a circular orbit travel at a consta
motikmotik
Why does a satellite in a circular orbit travel at a constant speed? why does a satellite in a circular orbit travel at a constant speed? there is a force acting opposite to the direction of the motion of the satellite. there is no component of force acting along the direction of motion of the satellite. the net force acting on the satellite is zero. the gravitational force acting on the satellite is balanced by the centrifugal force acting on the satellite?
..b.25
6 0
3 years ago
A cylindrical can holds 1 liters (1000 cm^3) of liquid. How should the height and radius be chosen to minimize the amount of mat
ArbitrLikvidat [17]

I was struck by this many years ago while in graduate school. ... People with mental illness tend to die young , but so do their families. ... there is no medical assessment that can diagnose the absence of illness.

4 0
4 years ago
Which type of graph gives the most information about how the position of a moving object changes relative to a reference point?
Paraphin [41]

Answer:

My opinion is B it sounds more reasonable

6 0
3 years ago
Please someone knows the answer? it is physics ​
Assoli18 [71]

Answer:C

Explanation:  I took the quiz if you don't believe me then your gonna miss the problem.

3 0
3 years ago
When a hypothesis is proven wrong, scientists often begin by revising the . After that, it’s common for scientists to redesign t
Rainbow [258]
1) thesis
2) experiment
3 0
3 years ago
Read 2 more answers
Other questions:
  • In the diagram, the wavelength is shown by :
    12·1 answer
  • What will happen if you rub two different materials together?
    11·2 answers
  • An old-fashioned LP record rotates at 33 1/3 RPM
    13·1 answer
  • Select the correct answer from each drop-down menu. A device that uses electricity and magnetism to create motion is called a __
    11·1 answer
  • Antonina throws a coin straight up from a height of
    6·1 answer
  • What information can scientists obtian from tree rings
    6·1 answer
  • Por qué se celebra el día del deporte
    9·1 answer
  • We know that there is a relationship between work and mechanical energy change. Whenever work is done upon an object by an exter
    8·1 answer
  • Difference between on pitch and frequency​
    12·1 answer
  • A material through which electrons can move easily is a what
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!