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Zolol [24]
3 years ago
10

The visible surface of the Sun, which is also the deepest layer we can see with our eyes, is in which region of the Sun?

Physics
1 answer:
Nina [5.8K]3 years ago
5 0
It is the photosphere
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Would time move slower or faster approaching black hole?
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Slower towards the black hole
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3 years ago
A visitor to a lighthouse wishes to determine the height of the tower. She ties a spool of thread to a small rock to make a simp
Wittaler [7]

Answer:

l = 10.16 m

Explanation:

In this case, we have the period of oscillation of the pendulum is 6.4 s. It is required to find the height of the tower.

We know that the pendulum executes SHM. Let l is the height of the tower. The time period of simple pendulum is given by :

T=2\pi \sqrt{\dfrac{l}{g}}

g is acceleration due to gravity

We need to rearrange the above equation such that,

l=\dfrac{T^2g}{4\pi ^2}\\\\l=\dfrac{(6.4)^2\times 9.8}{4\pi ^2}\\\\l=10.16\ m

So, the height of the tower is 10.16 m.

4 0
4 years ago
The left ventricle of the heart accelerates blood from rest to a velocity of 26 cm/s. (a) If the displacement of the blood durin
pentagon [3]

Explanation:

Initial speed of blood, u = 0

Final speed of the blood, v = 26 cm/s

(a) Displacement of the blood, d = 2 cm

Let a be its acceleration. It can be calculated using third equation of motion as :

a=\dfrac{v^2-u^2}{2s}

a=\dfrac{(26)^2}{2\times 2}

a=169\ cm/s^2

(b) Let t is the time taken by the blood to reach its final speed. It can be calculated as :

<u>t=\dfrac{v-u}{a}</u>

t=\dfrac{26\ cm/s}{169\ cm/s^2}

t = 0.15 s

Hence, this is the required solution.

5 0
3 years ago
What is the variable that is manipulated by the experimenter during an experiment called
larisa [96]
Independent variable
The independent variable is the variable that is controlled and manipulated by the experimenter. For example, in an experiment on the impact of sleep deprivation on test performance, sleep deprivation would be the independent variable.
3 0
4 years ago
You are throwing a ball straight up in the air. At the highest point, the ball's.....
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Answer:

velocity and acceleration are zero.​

5 0
3 years ago
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