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3 years ago

What is the string theory.

Physics

2 answers:

Leno4ka [110]3 years ago

7 0

String the·o·ry
noun
a cosmological theory based on the existence of cosmic strings.

andrezito [222]3 years ago

4 0

In physics, string theory is a theoretical framework in which the point-like particles of particle physics are replaced by one-dimensional objects called strings. It describes how these strings propagate through space and interact with each other.

Hope this helps! :-)

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Suppose a treadmill has an average acceleration of 4.7 x 10^-3. A) how much does its speed change after five min? B )If the trea

mars1129 [50]

V1 - v0 = at

= 4.7 x 10^3 m/s^2 x 300s

= 1.4 x 10^6 m/s

hope this helps

3 0

3 years ago

Read 2 more answers

A car covers a distance of 200m. If its velocity is 20 m/s, calculate the time taken.

Anvisha [2.4K]

Answer:

10 seconds

Explanation:

velocity=displacement/time

7 0

3 years ago

What happens to waves energy when it’s absorbed by an median

Ipatiy [6.2K]

Answer:

Absorption, in wave motion, the transfer of the energy of a wave to matter as the wave passes through it. The energy of an acoustic, electromagnetic, or other wave is proportional to the square of its amplitude—i.e., the maximum displacement or movement of a point on the wave; and, as the wave passes through a substance, its amplitude steadily decreases.

Explanation:

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3 years ago

Which type of stress is most likely the cause of irritability?

masha68 [24]

Answer:

The correct answer is - distress.

Explanation:

Eustress is a type of stress that is beneficial to person and caused by adrenaline. Hypostress is a stress that is caused due to boredom or no work. It is stress comes with wasting the time.

Distress is the bad stress caused by anxiety, sadness, grief, and such type of stress that is caused irritability. Irritability is caused not just by stress but many factors.

4 0

3 years ago

Jack and Jill exercise in a 25.0 m long swimming pool. Jack swims 9 lengths of the pool in 156.9 s ( 2 min and 36.9 s ) , wherea

Leya [2.2K]

Answer:

Jill average velocity is 0

Jack average velocity is 0.159337

Jill average speed = 1.593372

Jack average speed = 1.434034

Explanation:

given data

long swimming pool = 25.0 m

9 lengths of the pool = 156.9 s ( 2 min and 36.9 s )

10 lengths = same time interval

to find out

average velocity and average speed

solution

we know that average velocity that is express as

average velocity = $\frac{displacement}{time}$ .....................1

Jill come back where she start

so here velocity will be = 0

and

Jack ends up on the other end of pool

so average velocity = $\frac{25}{156.9}$

average velocity = 0.159337

now we get here average speed that is express as

average speed = $\frac{distance}{time}$ .............2

jack speed = 9 × $\frac{25}{156.9}$

jack speed = 1.434034

and

Jill speed = 10 × $\frac{25}{156.9}$

Jill speed = 1.593372

5 0

4 years ago