PHYSICS HIGH SCHOOL

At a maximum level of loudness, the power output of a 75-piece orchestra radiatedas the sound is 70.0 W. What is the intensity of these sound waves to a listener who is
sitting 25.0 m from the orchestra?

Answers

Answer 1
Answer: 7000w + 1637kw =8637kw+25.0m=loud sound

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a motorcycle accelerates from 15 m/s to 20 m/s over a distance of 50 meters. what is its average acceleration?
The core muscles stabilize and protect the spine.
The bending of wave crests as the reach shallow water is:
The energy that moving objects have is called ________ energy.a. heat b. kinetic c. potential d. electromagnetic

An ant sits on the back of a mouse. The mouse carries the ant across the floor for a distance of 10 meters. Was there work done by the mouse? Explain.

Answers

yes because the mouse was moving with kts kwn force.

Answer: no

Explanation:

force and distance are not in the same direction

Explain convection in as little as possible

Answers

is the upward movement of a warmer less dense region of a fluid
heat goes in a circle

Which of the following represents units of geologic time in increasing order?A. Eon, era, period, epoch
B. Epoch, period, eon, era
C. Era, eon, period, epoch
D. Epoch, period, era, eon

Answers

Answer:

D. Epoch, period, era, eon

Explanation:

An eon refers to the largest division of time in Earth's history used on the geological time scale. The current eon is divided into three eras. the current era is divided into three periods and the current period is divided into two epochs, reaching the Holocene, which is the current geological epoch.

B. is the correct answer.

Nicolaus Copernicus believed that the: sun revolved around the earth sun was the center of the solar system movement of planets could explain weather stars and planets represented spirits

Answers

Nicolaus Copernicus spearheaded the idea of heliocentrism, that is, that the sun was the center of the solar system. Back in his time, a lot of astronomers and scientists believed that the earth was the center of the solar system. This so called belief was called geocentrism. Nicolaus was one fo the first few who pushed heliocentrism.

Answer:

B. Sun was the center of the solar system.

Which
factors will increase the speed of a sound wave in the air?

Answers

A higher temperature, stiffer materials, and less dense materials increase the speed of sound.

Answer:

Temperature

Explanation:

If you were to stir salt in water until the salt disappeared, which is the solute?salt

sodium in the salt molecules

hydrogen in the water molecules

water

Answers

salt is the solute in that situation

salt is the solute in that situation
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