PHYSICS HIGH SCHOOL

Choose most accurate statement:a. Waves can exist in liquids and gases only.
b. Waves can exist in liquids and solids only.
c. Waves can exist in solids and liquids only.
d. Waves can exist in solids, liquids, and gases.

Answers

Answer 1
Answer: "Waves can exist in solids, liquids, and gases."
is the ONLY accurate statement.

The word "only" in the other 3 statements makes them
not accurate at all.

Related Questions

Which statement below is correct?A. The Moon revolves around the Sun, but the Earth does not. B. The Earth-Moon system revolves around the Sun. C. The Earth revolves around the Sun-Moon system. D. The Sun revolves around the Earth-Moon system.
Your shopping cart has a mass of 65 kilograms. In order to accelerate the shopping cart down an aisle at 0.30 m/s2 What force would you need to use or apply to the cart. I don't know how to solve this
earth were now in synchronous rotation with the moon? that is, suppose that earth rotated at the same rate that the moon orbits earth. what would be differ-ent about earth and life on it?
a 100 watt microwave oven takes 90 secondd to heat a bowl f soup How many joules of energy does it use ?
How does a pulley make it easier to load cargo onto a cargo ship?A. The pulley increases the force needed to lift the load by moving it over a longer distance. It also changes the direction of the force. As the input force is applied downward, the output force is exerted upward. B. The pulley reduces the force needed to lift the load by moving it over a longer distance. It also changes the direction of the force. As the input force is applied downward, the output force is exerted upward. C. The pulley increases the force needed to lift the load by moving it over a shorter distance. It also changes the direction of the force. As the input force is applied upward, the output force is exerted downward. D. The pulley reduces the force needed to lift the load by moving it over a shorter distance. It also changes the direction of the force. As the input force is applied upward, the output force is exerted downward.

Could you give me 4 examples of acceleration??

Answers

Certainly.

1). A driver presses the gas and the car speeds up.

2). A driver presses the brake and the car slows down.

3). A driver turns the steering wheel slightly. The car's speed doesn't change
as it goes around the curve.

4). A stone is tossed into the air. Gravity accelerates it from the moment it
leaves the thrower's hand until it hits the ground.

5). A new TV satellite is successfully launched and placed in a perfect circular
orbit around the Earth. The satellite's motion is accelerated forever, 24/7/365 .

"Acceleration" means any change in the speed or direction of motion.  Any
object that's not moving at constant speed in a straight line is accelerated.

4. Which of the following best describes Kinetic Energy?Stored energy due to position
Energy of motion
Force applied over a distance
A push or pull exerted on an object

Answers

Answer:

Energy Of Motion

Explanation:

An observer on Earth measures the length of a spacecraft travelling at a speed of 0.700c to be 78.0 m long. Determine the proper length of the spacecraft.

Answers

If the observer on Earth measures the speed of the spacecraft
as 0.700c and its length as 78.0 meters, then engineers aboard
the spacecraft measure their vehicle as 142.4 meters long. 

They're both correct.  There's no such thing as the spacecraft's
"real" or "proper" length. 

A neutral metal comb is held near an object with a negative charge.What happens to the comb?

A. The comb is charged by contact.

B. The comb is charged by friction.

C. The comb is charged by static discharge.

D. The comb is charged by induction.

Answers

D. The comb is charged by induction.

Consider these scenarios. A pink box with containing the words Scenario 2 You are about 7 meters away from a metal bar that is struck with a drumstick. The sounds travels through the air to your ear. In which of these scenarios would the sound of the drumstick hitting the metal bar get to you in the least amount of time? Explain your answer.

Answers

Answer:

Scenario 1 will cause the sound of the drumstick hitting the metal bar to reach your ears in the least amount of time.

Explanation:

The sound wave will travel faster in the metal bar than through the air because the speed of sound waves in solids is faster than it is in gases.

Answer:

Scenario 1 will cause the sound of the drumstick hitting the metal bar to reach your ears in the least amount of time.

Explanation:

ifunny is dankreloaded

Which of the following sources of pollution would be the most difficult to track and regulate?

Answers

lawn fertilizer runoff

Lawn fertilizer runoff can be the most difficult to track and regulate since it may have spread in the soil and was washed away together with the water particles. 


Pollution is an ecological disturbance and turmoil that ruins and endangers life either in land or sea, even air. 
Three types of pollution exist:
Water pollution
Air pollution
Land pollution 
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The driver of a 1500 kg car, travelling on a highway, hits the brakes. A force of 12000 N stops the car in a distance of 64 m. how fast was the car going when the driver hit the brakes?
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