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Schach [20]
2 years ago
5

A friend throws a coin into a pool. you close your eyes and dive toward the spot where you saw it from the edge of the pool. whe

n you reach the bottom, will the coin be in front of you or behind you? explain.
Physics
2 answers:
amid [387]2 years ago
6 0

Answer: Behind you

Explanation:

The edge of the pool is the boundary of two different mediums-air and water. the light from coin would bend away from the normal at the interface of the two mediums before reaching the eyes. It means the coin would be closer than expected position and hence on reaching the bottom, the coin would be found behind you.

madreJ [45]2 years ago
3 0

The Correct Answer Is A

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How can the atomic number of nitrogen be determined?
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Answer:

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2 years ago
Suppose a yo-yo has a center shaft that has a 0.230 cm radius and that its string is being pulled.
Fofino [41]

Answer:

Part a)

\alpha = 782.6 rad/s^2

Part B)

\omega = 587 rad/s

Part c)

a_t = 24.3 m/s^2

Explanation:

Part a)

As we know that

a = R \alpha

so we will have

a = 1.80 m/s^2

R = 0.230 cm

\alpha = \frac{a}{R}

\alpha = \frac{1.80}{0.230 \times 10^{-2}}

\alpha = 782.6 rad/s^2

Part B)

Angular speed of the yo-yo

\omega = \alpha t

so we have

\omega = 782.6 \times 0.750

\omega = 587 rad/s

Part c)

Tangential acceleration is given as

a_t = R \alpha

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a_t = 24.3 m/s^2

6 0
3 years ago
What does the zeroth law of thermodynamics allow us to define?
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Two observers are 300 ft apart on opposite sides of a flagpole. The angles of elevation from the observers to the top of the pol
valentina_108 [34]

Answer:

h = 48.077 ft

Explanation:

given,

distance between two observer = 300 ft

angle of elevation to top pole = 16° and 20°

height of the flagpole = ?

now,

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tan 16^0 = \dfrac{h}{x}

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now,

again applying

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300-3.49 h=2.75 h

6.24h = 300

h = 48.077 ft

3 0
3 years ago
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