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k0ka [10]
3 years ago
12

Why do living beings and machine need energy?​

Physics
2 answers:
In-s [12.5K]3 years ago
8 0
If it didn’t have energy then we wouldn’t be able to move very much and machines will be slower
jeyben [28]3 years ago
7 0

Answer:

समाकलन कीजिए!

5x

(x+1)(

x

2

−4)

5x(x+1)(x2-4)per Gujari ke design

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When two ocean plates move away from each other that is called?
Harrizon [31]

Answer: Convergent or Divergent boundaries

Explanation:

Divergent boundaries occur along spreading centers where plates are moving apart and new crust is created by magma pushing up from the mantle. Picture two giant conveyor belts, facing each other but slowly moving in opposite directions as they transport newly formed oceanic crust away from the ridge crest.

6 0
3 years ago
Jasmine pushing her little brother on the swing the swing passes back-and-forth 14 times in 40 seconds what is the frequency of
dusya [7]

Answer:

Explanation:

frequency f = 14 cycles/40 s

f = 0.35 cycles/s or

f = 0.35 Hz.

I suspect you are more concerned with the PERIOD of the swing rather than what is superior to it. (How would one even compare?)

T = 1/f = 1/0.35

T = 2.85714285...

T = 2.86 s

8 0
3 years ago
Define relative density​
weeeeeb [17]

Hello There!

Relative density is another word for specific gravity. Relative density is comparing the density of one thing to the density of another. Most of the time, you look at the density of water so we look at the density of an object relative to the density of water.

5 0
4 years ago
Describe in a couple sentences how the index of refraction is related to the speed of light?
lesantik [10]

Answer: n = c / v" "c" is the speed of light in a vacuum, "v" is the speed of light in that substance and "n" is the index of refraction. According to the formula, the index of refraction is the relation between the speed of light in a vacuum and the speed of light in a substance.

Explanation: the relation is the vacuum and the speed of light in a substance.

3 0
3 years ago
Which of the following planets most likely has the coldest surface temperature
Pachacha [2.7K]
Neptune but Pluto before its planet status changed to a dwarf planet
7 0
4 years ago
Read 2 more answers
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