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rewona [7]
3 years ago
13

Give two examples of events that show that the speed of sound is very much slower than the speed of light

Physics
1 answer:
jeka943 years ago
6 0

Answer:

1) Lightning, you see the lightning first and then hear the thunder.

2)When a person far away from you hits a ball with a bat, you can see them striking the ball first and then you will hear the sound of ball striking against the bat.

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Fitness tests check to see how physically fit you are. How can a fitness assessment help you to improve your fitness? What area
mixer [17]

Fitness assessment can help us to improve our fitness simply by setting goals to improve their healthy fitness

However, fitness testing is an effective strategy to monitor and assess our fitness levels in general as it helps us to understand how healthy they are by learning about the five components of fitness .

<h3>What is physical fitness?</h3>

This simply refers to a state of an individual being physically healthy.

In order words, it is a condition of being physically fit and healthy.

So therefore, fitness assessment can help you to improve our fitness simply by setting goals to improve their health-related fitness

Learn more about fitness:

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4 0
2 years ago
The speed of light in ________ is about 230 million m/s.
Vladimir [108]

Answer:

Water

Explanation:

The speed of light in water is about 230 million m/s.

8 0
3 years ago
A doctor has a patient blow on one side of a U-shaped tube that is partially filled with water and has a ball floating on the ot
natali 33 [55]

The patient apply pressure to his side of the tube is 15 x 10⁴ N/m². The correct option is D.

<h3>What is pressure?</h3>

The pressure is the amount of force applied per unit area. It is represented as

Pressure p = Force/Area

Given is a doctor has a patient blow on one side of a U-shaped tube that is partially filled with water and has a ball floating on the other side. The ball rises with a force of 150 N. The cross section are of the tube is 0.001 m³

The pressure applied is

p = 150 /0.001

p = 15 x 10⁴ N/m²

Hence, the patient apply pressure to his side of the tube is 15 x 10⁴ N/m².

Learn more about pressure.

brainly.com/question/12971272

#SPJ1

6 0
2 years ago
Sue and Shannon are having an argument about diet myths. In order to settle the argument, select the "myth" that is really a TRU
NeTakaya

Answer:

To lose weight, you must use more weight than you consume. (D.)

Explanation:

I took the test and got a 100

3 0
3 years ago
Earthquakes at fault lines in Earth's crust create seismic waves, which are longitudinal (P-waves) or transverse (S-waves). The
chubhunter [2.5K]

Answer:

B=2.025\times 10^{11}\ Pa

Explanation:

It is given that,

Speed of P- waves, v = 9 km/s = 9000 m/s

The density of rock is about 2500\ kg/m^3

We need to find the average bulk modulus of Earth's crust. Let it is given by B. So,

v=\sqrt{\dfrac{B}{d}} \\\\B=v^2d\\\\B=(9000)^2\times 2500\\\\B=2.025\times 10^{11}\ Pa

So, the bulk modulus of the Earth's crust is 2.025\times 10^{11}\ Pa.

8 0
3 years ago
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