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3 years ago

PLEASE HELP ASAP! i will really appreciate it

Physics

1 answer:

Setler79 [48]3 years ago

4 0

What you’re doing is so easy pay attention more I think

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What is the developmental period during which a person will experience the most amount of physical change?

Juli2301 [7.4K]

Answer:

B. Adolescence

Explanation:

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3 years ago

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The triceps muscle in the back of the upper arm is primarily used to extend the forearm. Suppose this muscle in a professional b

bagirrra123 [75]

To solve this problem it is necessary to address the concepts related to Torque as a function of the force and distance where it is applied and the moment of inertia from which the torque, moment of inertia and angular acceleration are related.

By definition the torque is defined as

$\tau = F*r$

Where,

$\tau = Torque$

F = Force

r = Radius

For our values we have:

$\tau = F*r$

$\tau = (1.75*10^3)(2.8*10^{-2})$

$\tau = 49Nm$

Consequently the calculation of the moment of inertia would then be given by the relationship

$\tau = I\alpha$

$I=\frac{\tau}{\alpha}$

Replacing with our values

$I = \frac{49}{150}$

$I = 0.322Kg.m^2$

The moment of inertia of the boxer's forearm $0.322Kg.m^2$

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3 years ago

Radio waves are<br> waves.<br> O longitudinal<br> O transverse<br> O mechanical

EleoNora [17]

Answer:

Transverse

Explanation:

Transverse wave, motion in which all points on a wave oscillate along paths at right angles to the direction of the wave's advance. Surface ripples on water, seismic S (secondary) waves, and electromagnetic (e.g., radio and light) waves are examples of transverse waves

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How is newtons first law of motion related to the concept of inertia?

AleksandrR [38]

The focus of Lesson 1 is Newton's first law of motion - sometimes referred to as the law of inertia. An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force. Hope this helps :)

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3 years ago

You use a very sensitive instrument to measure the speed of sound in your front yard in December. You repeat the test in August

frutty [35]

<h2>Answer: faster </h2>

The speed of sound varies depending on the medium through which the sound waves travel. In addition, it varies with changes in the temperature of the medium. This is because an <u>increase in temperature means that the frequency of interactions between the particles that transport the vibration increases</u>, hence this increase in activity increases the speed. That is why the speed of sound in a gas is not constant, but depends on the temperature.

So, if we want <u>the speed of sound in a gas to increase</u>, the<u> temperature</u> of that gas must <u>increase</u>, as well.

For example, the higher the air temperature, the greater the velocity of propagation. Experiments have shown that the speed of sound in air increases $0.6m/s$ for every $1\°C$ increase in temperature.

Therefore:

<h2>The speed of sound will be faster than in December</h2>

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