PHYSICS HIGH SCHOOL

A 5,400 W motor is used to do work. If the motor is used for 640 s, about how much work could it do?

Answers

Answer 1
Answer:

Work is defined as the conversion of energy. The given motor can give 3456000 J of work.

Power:

It is defined as the ability of a machine to do work or as the time rate of energy conversion.  

P=E/t,

E = P x t

Where,

P = power = 5,400 W

W = energy (J) = ?

t = time = 640 s

Put the values in the formula,

W= 5400 x 640

W = 3456000 J.

Therefore, the given motor can give 3456000 J of work.

To know more about work,

 brainly.com/question/6655783

Answer 2
Answer: Since P=E/t,
where P=power (W),
E=energy (J) and
t=time (s).

Just rearrange this formula to obtain E=P*t=5400*640=3456000 J.

Energy and work are very related since energy is defined like the ability of doing work. Actually work is also measured in J so the answer is the one above.
Work = 3456000 J

Related Questions

What terms are needed to completely describe velocity?
What happens to the current as we increase the amount of stepping of our transformer? Does this help explain why the primary was warm but not the secondary? How does this result demonstrate that we can’t just use a step-up transformer to create free energy?
Why is the Earth's surface warmer than the surface of other planets, like Mars?a. The Earth's atmosphere releases heat. b. The Earth's surface receives less energy from the sun's rays. c. The Earth's rotation transfers energy more evenly. d. The Earth's atmosphere traps heat.
Which one is having lesser ressistance. a 60w bulb or a 40w bulb?
EASY QUESTION!!! 20 POINTS!!!!!! PLZ ONLY CORRECT ANSWERS!!!You want to determine your speed running across the room. What is one piece of data you need?A) The distance you runB) When you start your stopwatchC) How big each step isD) How fast you are moving

Which two changes would increase the electric force between two charged particles

Answers

In electrostatics, the electrical force between two charged objects is inversely related to the distance of separation between the two objects. Increasing the separation distance between objects decreases the force of attraction or repulsion between the objects.

hope this helped

What type of energy is released when fossil fuels are burned?

Answers

Before the fuel is burned, it's chock full of chemical energy.  When the fuel is burned, the chemical energy is released, and it escapes in the form of heat and light energy. 

Answer:

¨chemical energy¨ is released.

The charge on a gamma ray is ____.

Answers

A gamma ray is the same physical thing as a radio wave or
a light wave.  All of them are traveling electric and magnetic
fields, not charged particles.  The waves and rays have no charge.
the charge on a gramma ray is zero

Is it possible to fly from Norway to USA across the North Pole?

Answers

Sure.  The Earth is a sphere (ball-shaped), so you can follow practically
any route you want from one place to another.  You could even fly from
New York to Chicago by way of the north pole.

If you want to draw a smooth curve from Oslo through the north pole to
a point in the USA, that's perfectly possible.  But it's not the shortest way
to travel between those two points.

The _______scale is called an absolute temperature scale, and its zero point is calledabsolute zero.
O A. Celsius
O B. Fahrenheit
O C. Kelvin

Answers

Answer:

It is C the kelvin scale

Explanation:

Have a great day

Calculate the average speed (in km/hr) of Charlie who runs to the store 4 km away in 30 mins

Answers

First of all . . .

-- You want to know "km / hr", so you know you'll have to divide distance by time.

-- You want "km / hr", so you know the time will have to be in hours.

     30 minutes = 1/2 hour

-- Doo da division:

                        (4 km) / (1/2 hour)

                   =    (4 over 1/2) (km/hr)

                   =    (4 times 2/1) (km/hr)

                   =          8  km/hr .
Other Questions
How much current will a 240 V heater with 20 ohms of resistance draw?
The atomic number of beryllium (Be) is 4, and the atomic number of barium (Ba) is 56. Which comparison is best supported by this information?
What does a reference point provide
A rocket travels vertically at a speed of 1300 km/hr.1300 km/hr. The rocket is tracked through a telescope by an observer located 13 km13 km from the launching pad. Find the rate at which the angle between the telescope and the ground is increasing 3 min3 min after the lift-off.