PHYSICS HIGH SCHOOL

What happens as a result of an increase in the intensity of a sound wave? -the frequency of a soundwave increases. -the velocity of the sound wave decreases. -the energy of the soundwave increases. -the amplitude of the soundwave decreases

Answers

Answer 1
Answer: As a result of an increase in the intensity of a sound wave, the energy of the sound wave increases!
Answer 2
Answer:

Answer: c. The energy of the sound wave increases.

Explanation:

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What is happening if energy input remains constant and voltage remains the same in a circuit, but the current decreases?The resistance has increased.
The volts have decreased.
The power has increased.

Answers

If energy input remains constant and voltage remains the same in a circuit, but the current decreases, the power has increased. It is presented in the equation P = VI where P is power, V is voltage and I is current.

You arrive in my class 45 seconds after leaving math which is 90 meters away. How fast did you travel?

Answers

Answer:

2m/s

Explanation:

speed = distance÷time

speed =90÷45=2m/s

QUESTION 2 OF 10What is one way that nuclear fusion differs from nuclear fission?
A. Nuclear fusion is used to power aircraft carriers.
B. Nuclear fusion is used in power plants to produce electricity.
C. Nuclear fusion requires very high pressures and temperatures.
D. Nuclear fusion occurs spontaneously on Earth.

Answers

C. Nuclear fusion requires very high pressures and temperatures.

Nuclear fusion involves the process of combining two light atomic nuclei to form a heavier nucleus, and it requires extremely high temperatures and pressures, as found in the core of stars. In contrast, nuclear fission is the process of splitting a heavy atomic nucleus into two or more lighter nuclei and typically occurs in nuclear power plants to produce electricity.

The change of energy from one form to another results in _____.

Answers

the spreading out of energy due to heat flow

A/an _______ is a type of research that involves observation and collecting data but does not include a control. A. dependent variable B. investigation C. experimentation independent variable

Answers

An investigation is a type of research that involves observation and collecting data but does not include a control. Investigation deals principally with obtaining information from a situation which is already in existence.

The answer would be B. investigation

A device that does work with one movement and changes the size or direction of a force is a(n)

Answers

A device that does work with one movement and changes the size or direction of a force is a simple machine.

Answer:

it is a simple machine

Explanation:
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I need help ASAP.The average time that it takes for the car to travel the first 0.25m is_____The average time to travel just between 0.25m and 0.50m is_____Given the time taken to travel the second 0.25m section, the velocity would be____m/s