All categories

3 years ago

4. What work is done when a person pushes a refrigerator weighing 720 Nacross a floor 12 m?

Physics

1 answer:

Naddika [18.5K]3 years ago

4 0

Answer:

Explanation:

The work done by an object can be found by using the formula

workdone = force × distance

From the question we have

workdone = 720 × 12

We have the final answer as

Hope this helps you

You might be interested in

Which would be an adaptation for living in the tundra?

Harlamova29_29 [7]

Answer:A hibernation to lower metabolism in the winter

Explanation:

the others would not be beneficial in the tundra since the tundra is cold adaptations that retain heat would be best

7 0

3 years ago

Read 2 more answers

Forces start and change the motion of an object. Question 1 options: True False

Vlad1618 [11]

I think it’s true I may be wrong tho

8 0

3 years ago

A ski resort consists of a few chairlifts and several interconnected downhill runs on the side of a mountain, with a lodge at th

ser-zykov [4K]

Answer:

A) attached file

B) attached file

C) attached file

D) Kirchhoff’s junction rule states that at any junction, the sum of the altimeter attained moving into and out of that junction are equal.

While

Kirchhoff’s loop rule states that the algebraic sum of the number of lifts used in any closed loop is equal to zero

Explanation:

Given that the lifts are analogous to batteries, and the runs are analogous to resistors.

So from all the figures. The resistors represent the runs while the lift represents the battery.

Kirchhoff’s junction rule states that at any junction, the sum of the altimeter attained moving into and out of that junction are equal.

While

Kirchhoff’s loop rule states that the algebraic sum of the number of lifts used in any closed loop is equal to zero

Please find the attached file for the sketch

8 0

3 years ago

Scientists are investigating how well different microphones capture and record sounds. They use tools that show how loud the hig

inna [77]

Answer:

Which microphone captures a singer's low sounds the loudest?

Explanation:

Scientific questions are the basis of any scientific experiment. An observation is followed by a scientific question. In this question, scientists are investigating how well different microphones capture and record sounds by using tools that show how loud the high and low sounds are and a tool that shows how much noise is recorded along with the actual sounds.

Hence, a scientific question should be that which will cover the whole aspect of the investigation i.e. the question should contain a general scope of the problem. Hence, a scientific question that could be included in this investigation is:

Which microphone captures a singer's low sounds the loudest?

This is because this question contains every part being investigated i.e. How different microphones capture sounds and records them (whether low or high).

7 0

3 years ago

Under some circumstances, a star can collapse into an extremely dense object made mostly of neutrons and called a neutron star.

Andrews [41]

Answer:

The question is incomplete however this kind of questions about determinate the angular speed and taking a reference of days rotating the first star.

w=0.11312 rad/s

Explanation:

The situation is about a two star the question is incomplete, miss the time rotate one star so we assume the first star rotated once in 30 days so:

Angular momentum

$P_{m}=I*w$