Answer:
The vibrations from sound waves cause our ears to send signals to our brains to create sound. The speed of sound waves will determine the sound's pitch, or how high or low something sounds. Sound waves are important because they allow us to hear important messages and emergency signals to protect ourselves.
Explanation:
I hope this helps :)
What Newton discovered is that gravity extends throughout the universe.
<h3>What is gravity?</h3>
The term gravity refers to the force that acts on a body in the universe. It is gravity that makes an object to fall when it is thrown up. The force of gravity acts on every object in the universe and it extends through the universe.
Humans have always known about gravity when they fall from a height and when they threw things up. However, human did not know that gravity extends throughout the universe.
Thus, what Newton discovered is that gravity extends throughout the universe.
Learn more about gravity:brainly.com/question/4014727
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Answer:
Motion definition: the action or process of moving or being moved.
Examples:
1. moving a hand
2. riding a bicycle
3. running
Well to find the total miles what I would do is 18 x 22 which would equal 396 so the answer would be: You can go 396mi with a car that gets 22 mpg* and holds 18 gallons
*Mpg=Miles per gallon
Answer: 4850N
Explanation:
Mass of car = 970 kg
Time = 5 s
Speed = 25 m/s
Average force exerted on the car = ?
Recall that Force is the product of the mass of an object and the acceleration by which it moves
i.e Force = mass x acceleration
(Since, acceleration is the rate of change of velocity or speed per unit time)
i.e Acceleration = Speed / Time
Acc = 25m/s / 5s
Acc = 5m/s^2
Average force = mass x acceleration
Avg force = 970 kg x 5m/s^2
= 4850N
Thus, the average force exerted on the car is 4850 Newton
