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Serjik [45]
3 years ago
7

If chris throws a baseball 60 meters in 4 seconds, what is the average speed of the football?

Physics
1 answer:
IceJOKER [234]3 years ago
6 0
The average speed of the football is 15 meters per second. Just divide both of the numbers by 4 :)
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Grace [21]

Responder:

3,37 m / s, + ve x - dirección

Explicación:

Utilizando la ley de conservación de la cantidad de movimiento expresada por la fórmula;

m1u1 + m2u2 = (m1 + m2) v

m1 y m2 son las masas de los objetos

u1 y u2 son sus velocidades iniciales

v es su velocidad común

Dado

m1 = 0,519 kg

u1 = 4,80 m / s

m2 = 0,220 kg

u2 = 0 m / s (cuerpo en reposo)

Necesario

Velocidad común v

Sustituir en la fórmula los valores dados;

0,519 (4,8) + 0,22 (0) = (0,519 + 0,220) v

2,4912 + 0 = 0,739 v

2,4912 = 0,739v

Dividir ambos lados por 0,739

2,4912 / 0,739 = 0,739 / 0,739

<em>v = 3,37 m / s </em>

<em>Por lo tanto, la rapidez de ambas bolas después de la colisión es de 3.37 m.s hacia la dirección x positiva, ya que m1> m2 y la velocidad común es positiva.</em>

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Which technology can observe electromagnetic radiation and avoid light pollution to allow for exploration beyond our solar syste
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Answer:

<h3><u>The Hubble Space Telescope</u> makes one orbit around Earth every 95 minutes. The electromagnetic spectrum shows that visible light is between infrared radiation and ultraviolet radiation.</h3>
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A system releases 255 cal of heat to the surroundings while delivering 428 cal of work. what is the change in internal energy of
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Explanation:

Given

Heat released by system Q=-255 cal

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Please need help with this
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<u>Note that</u>:

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