We know velocity of sound v=a₩(omega), but speed does not depend on amplitude, why?

Answers

Answer 1

Answer: The amplitude of a wave does not affect the speed at which the wave travels. The speed of a wave is only altered by alterations in the properties of the medium through which it travels.
Here’s some fun facts:
The amplitude of a sound wave determines its loudness or volume. A larger amplitude means a louder sound, and a smaller amplitude means a softer sound.

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an object at rest starts accelerating if it travels 30 meters to end up going 10 m/s what was it’s acceleration

Answers

First we have to calculate the time taken to travel the distance 30 m, is

$t = (distance)/(velocity) = (30 \ m)/(10 \ m/s ) = 3 \ s$ .

Now from equation of motion,

$v = u + at$

Given, $v = 10 \ m/s$ .

As object starts from rest, so u = 0.

Substituting these values in above equation, we get

$10 \ m/s = 0 + a * 3 \ s \n\n a = (10)/(3) = 3.33 \ m/s^2$ .

Thus, the acceleration is $3.33 \ m/s^2$

What TWO things affect the gravitational force acting on an object?

Answers

The strength of the gravitational forces between two masses depends on

-- the product of the masses,

-- the distance between their centers of mass.

mass and distance (between two objects) are those TWO things that affect the gravitational force acting on an object

Since the ball slowly comes to a stop what does this mean about the net force on the ball as it rolls across the field?

Answers

Since the speed of the bll is decreasing, there must be a net force
acting on it in the direction opposite to its motion.

A 2.00x10^6 hertz radio signal is sent a distance of 7.30x10^10 meters from earth to a spaceship orbiting Mars. How much time does it take for the radio signal to travel from earth to the spaceship

Answers

Answer:

It takes $2.43* 10^2$ for the radio signal to travel from earth to the spaceship.

Explanation:

Given:

The frequency of the radio signal = $2.00 * 10^6$ hertz

Distance = $7.30* 10^10$ meters

To Find:

The time taken for the radio signal to travel from the earth to the spaceship= ?

Solution:

we know that the time taken can be found by dividing the distance travelled by the speed at which the signal travels

$Time = (Distance)/(Speed)$

Here the speed of the radio signal is equal the the speed of light

Now substituting the values,

Time taken is

=> $Time = (7.30* 10^10)/(3 * 10^8)$

=> $Time = 2.43* 10^(10-8)$

=> $Time = 2.43* 10^2$

The time taken for the 2×10⁶ Hz radio signal to get to the spaceship from Earth is 243.33 s

What is speed?

Speed is the distance travelled per unit. Mathematically, it can be expressed as:

Speed = distance / time

How to determine the time

Speed of radio signal = 3×10⁸ m/s
Distance = 7.3×10¹⁰ m
Time =?

speed = distance / time

3×10⁸ = 7.3×10¹⁰ / time

Cross multiply

3×10⁸ × time = 7.3×10¹⁰

Divide both sides by 3×10⁸

Time = 7.3×10¹⁰ / 3×10⁸

Time = 243.33 s

Learn more about speed:

brainly.com/question/680492

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Identify one similarity between between fission and fusion processes.

Answers

Nuclear fusion and fission releases tremendous amount of energy using radioactive material as a fuel.

What are the similarity between fusion and fission?

Fusion and fission are similar in that they both release large amounts of energy.

Nuclear fusion is a process in which two nuclei join to form a larger nucleus.

Nuclear fission is a process in which a nucleus splits into two smaller nuclei.

At first sight, it doesn’t make sense that both fission and fusion release energy.

The key is in how tightly the nucleons are held together in a nucleus. If a nuclear reaction produces nuclei that are more tightly bound than the originals, then the excess energy will be released.

It turns out that the most tightly bound atomic nuclei are around the size of iron-56.

Thus, if you split a nucleus that is much larger than iron into smaller fragments, you will release energy because the smaller fragments are at a lower energy than the original nucleus.

If instead you fuse very light nuclei to get bigger products, energy is again released because the nucleons in the products are more tightly bound than in the original nuclei.

To know more about fusion and fission follow

brainly.com/question/114533

Answer: C) They both result in products that have less mass than the reactants

Explanation:

What is the structure of a magnet?

Answers

The structure of a magnet is iron because a magnet is a piece of iron.

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