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Ainat [17]
3 years ago
9

A player hits a tennis ball into the air with an initial velocity of 32 m/s straight up. How fast is the ball moving at the high

est point in its trajectory if air resistance is negligible?
Physics
1 answer:
Zielflug [23.3K]3 years ago
8 0
0 m/s, the ball will stop before transferring to the force of gravity on earth (-9.8 m/s^2) starts acting on it.
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Which correctly describes electric potential, electric field, and electric (or electrostatic) force?
vlabodo [156]

Answer:

E

Explanation:

A vector is a physical quantity that has magnitude and direction while a scalar is a physical quantity that has magnitude only

*electric potential is a scalar quantity because it only has magnitude

*electric field and electric force are vector quantities because they have magnitude and direction

7 0
3 years ago
Help I don’t understand this question
7nadin3 [17]
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5 0
3 years ago
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4 0
3 years ago
What type of star is the sun?
finlep [7]
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5 0
4 years ago
Read 2 more answers
The index of refraction of silicate flint glass for red light is 1.620 and for violet light is 1.660 . A beam of white light in
Alinara [238K]

Answer:

The angular separation between the red and violet components of the spectrum that emerges from the glass is 1.72°

Explanation:

Given:

Refractive index for red light n _{1} = 1.620

Refractive index for violet n' _{1} = 1.660

Refractive index for air n_{2} = 1

Incident angle \theta _{1} = 28.30°

According to the snell's law,

    n_{1} \sin \theta _{1} = n_{2}   \sin \theta _{2}

For red light,

  1.620 \times \sin 28.30 = 1 \sin \theta _{2}

Where \theta _{2} = transmitted angle for red light

   \theta _{2} = 50.18°

For violet light,

  1.660 \times \sin 28.30 = 1 \sin \theta' _{2}

Where \theta' _{2} = transmitted angle for violet light

   \theta' _{2} = 51.9°

Angular separation between red and violet light is given by,

  \theta ' _{2} - \theta _{2} = 51.9 -50.18 = 1.72°

Therefore, the angular separation between the red and violet components of the spectrum that emerges from the glass is 1.72°

6 0
3 years ago
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