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forsale [732]
3 years ago
13

No work is done on an object when a force acting on the object does not move it. True False

Physics
1 answer:
myrzilka [38]3 years ago
3 0

Answer:

True

Explanation:

Since the definition of work in physics is the magnitude of force applied to an object and multiplied by the distance than the object is moved, if the object remains in the same place although there is a force acting on it, there will be not work done.

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All fungi are
sertanlavr [38]

Answer:

multicellular

Explanation:

all fungi are multicellular

4 0
2 years ago
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Which of the following would NOT produce a current? A. Moving a bar magnet inside a coil of wire O B. Moving a bar magnet toward
sineoko [7]

Answer:

c

Explanation:

7 0
2 years ago
Explain how energy balance sets planetary temperature? Imagine a planet colder than expected for energy balance and explain why
RUDIKE [14]

The planetary temperature energy balance is obtained by radiating back the absorbed radiation energy from outer-space, by the planet and thus acquiring thermal equilibrium.

What is the process of attaining thermal equilibrium by Earth?

The Stefan-Boltzmann law states that the more the temperature a planet has, the more it will radiate out to reach thermal equilibrium.

We know that outer space contains large masses of radiative energy freely distributed in its vast expanse. A small fraction of this energy is absorbed by the Earth through the atmosphere, surface land, clouds etc.

Now, radiative balance is achieved when a planet's surface continuously warms up until it reaches its peak at which point the same amount of absorbed energy can then be radiated back to space. The relative amount of energy radiated back by a planet is dependent upon the size of the planet.

A colder planet relatively absorbs lower amount of radiation energy from space. In some time, as the planet heats up enough, the energy is radiated back to the space attaining thermal equilibrium.

Learn more about Stefan-Boltzmann law here:

<u>brainly.com/question/14919749</u>

#SPJ4

6 0
1 year ago
The statement “Heavy objects fall faster than light objects” is an example of a(n) _______.
vazorg [7]
D. Theory is the answer
7 0
2 years ago
1. A rocket is fired vertically from the launch pad with a
zavuch27 [327]

Answer:

Max height= 36000 meters

Total Time = 120 seconds

Explanation:

0 = U - at

U = at

U= 20*60

U= 1200 m/s

MAX altitude would be

(U²Sin²tita)/2g

Max height= 1200² *( SIN90)²/(2*20)

Time of FLIGHT

2 * 1200/20

2400/20

120 sec onds

7 0
3 years ago
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