PHYSICS HIGH SCHOOL

The decibel scale is used to measure the perceived loudness of a sound. a. True
b. False

Answers

Answer 1
Answer: True because when you look at the scale you see that some louder things are higher on it than others

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Matter behaving like a wave rather than like a particle is best illustrated by which phenomenon?
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a constant force of 391 n acts on a spacecraft of mass 7870 kg that has an initial velocity of 38 m/s. how far has the spacecraft traveled when it reaches a velocity of 4820 m/s?
While discussing the effects of loose wheel bearings: Technician A says that vibration may occur while driving. Technician B says that the bearing may make noise. Who is correct? a. Technician A b. Neither A nor B c. Technician B d. Both A and B

View the image below and answer the question.The illustration above is an example of which of Newton's Laws?

a
Universal Law of Gravitation
b
Newton's Second Law
c
Newton's First Law
d
Newton's Third Law

Answers

Answer:

C. Newton's First Law of Motion

Explanation:

As the car comes to an abrupt stop, the body is still moving forward, and is moved back by the seatbelt, an outside force. If not for the seatbelt, the body would continue forward until acted on by the car itself, or thrown out of the car.

Answer:

1st law

Explanation:

A flashlight has a resistance of 2.4 what voltage is applied by the batteries if the current in the circuit is 2.5 a?

Answers

Explanation :

The resistance of the flashlight is 2.4 ohms

The current flowing in the circuit is 2.5 A

The Ohm's law gives the relation between the following quantities i.e.

Current

voltage

and resistance

Mathematically, Ohm's law can be written as :

V =I R

V=2.5\ A* 2.4\ \Omega

V=6\ Volts

The voltage applied by the batteries is 6 volts.

Hence, this is the required solution.

Answer:

D - 6.0

Explanation:

i'm not getting more detailed than the other answer so yeah i just took the test

The Sun emits a lot of radiation. The different types of radiation are the electromagnetic spectrum. Which of the following wave types are part of the spectrum?

Answers

All parts of the electromagnetic spectrum are
the same "type" of wave.

Depending on their frequency/wavelength, people
have given them names like ...

-- radio waves
-- microwaves
-- infrared radiation
-- visible light
-- ultraviolet light
-- X-rays
-- granma rays

How far will you travel if you run for 10. minutes at 2.0 m/s?

Answers

We know that 1 minute= 60 seconds (or 1 min= 60 s).

10 min* (60 s/ 1 min)* (2.0 m/ 1 s)= 1,200 m.
(Note that the units cancel out so you get the answer)

The final answer is 1,200 m.

Hope this helps~

The particles of a gas are actually _____. electrons or protons protons or neutrons atoms or elements atoms or molecules

Answers

Answer

atoms or molecules

Explanation

A pure gas such as argon or neon is made up of individual atoms. Other compound gasses such as oxygen or carbon dioxide are made up of elements.

Protons, neutrons and electrons are parts of an atom. They are not actually particles but charges.

The answer to the question is atoms or molecules.
The answer is the last option atoms or molecules

Calculate the period of a material point on a circle with a diameter of 20 cm at a speed of 7.2 km/h. a) 5 seconds b) 20 seconds c) 25 seconds d) 50 seconds

Answers