4 years ago

Which has the fastest wave speed, a high frequency sound or a low frequency sound?

Physics

1 answer:

Naddika [18.5K]4 years ago

3 0

Answer:

high frequent sound

Explanation:

because if its low than its slower.

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A man pulls a wagon with a handle that is at an angle of 42° with the ground. If the man pulls with 330 N of force, how much for

Fed [463]

Answer:

245N

Explanation:

We just need to multiply the force the man pulls the wagon by the cosine of the angle with the ground.

F = 330N * cos(42°) = 245.2N

8 0

4 years ago

Read 2 more answers

Why do motors have gaps or breaks throughout the rotor and commutator?

Marat540 [252]

Answer: Its the second option

Explanation:

I have the same text and everything I had did it yesterday and picked the second one and it was right so yea. Hopefully that helps. Is this fro STEM physics

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3 years ago

Calcular la aceleracion resultante de una particula que gira a 5Hz y su radio de giro es de 50 cm

DiKsa [7]

Answer:

$a_C=12.5\frac{m}{s^2}$

Explanation:

Hola.

En este caso, dado que conocemos la frecuencia con la que la particula gira (ω), 5 Hz o 5 giros de radio de 50 cm (0.5 m) cada uno en 1 segundo, podemos calcular la aceleración centrípeta con:

$a_C=\omega^2 r$

$a_C=(\frac{5}{s})^2*0.5m\\ \\a_C=\frac{25}{s^2} *0.5m\\\\a_C=12.5\frac{m}{s^2}$

¡Saludos!

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3 years ago

A cockroach of mass m lies on the rim of a uniform disk of mass 4.00m that can rotate freely about its center like a merry-go-ro

Alexxandr [17]

Answer:

Explanation:

A. And B. solutions are in the attachment.

When the cockroach walks towards the center of the circle, positive work is done so kinetic energy increases.

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4 years ago

Newton's first law equations like velocity and stuff like that

Klio2033 [76]

Answer:

Newton's first law: An object at rest remains at rest, or if in motion, remains in motion at a constant velocity unless acted on by a net external force. ... An object sliding across a table or floor slows down due to the net force of friction acting on the object.

Explanation:

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3 years ago