229 Best Physics Questions and Answers (Q&A) - ProProfs Discuss

What vibrates within an atom as it emits electromagnetic waves?

Smarten
Answered: Apr 19, 2024

The electron

1 Answer

310 views

How many shades of gray are in a 6 bit memory?

Toyin faks
Answered: Apr 19, 2024

1 Answer

310 views

Why do physicists use models?

Kaityhoward
Answered: Apr 19, 2024

To explain the basic features of cmoplex phenomena

1 Answer

308 views

What is the purpose of a squirrel cage?

W. Kaye, Ex-Marine
Answered: Dec 23, 2020

The purpose of a squirrel cage motor in a home HVAC system is that it provides a blower fan. Suppose you have a forced-air heating system, such as a furnace or air conditioning system. In that...Read More

2 Answers

302 views

What's the other term for telekinesis?

Ruso
Answered: Apr 19, 2024

Psychokinesis

1 Answer

300 views

Can you calculate the angle of reflection if 1 is 50o?

John Adney
Answered: Aug 16, 2017

Angle of reflection equals to theAngle of incidence = 90 - 50 = 40

2 Answers

299 views

What is the difference between Line and Line Segment?

D. Nichols
Answered: Aug 16, 2019

The line is known to be something that will keep ongoing. It will have no endpoints, and people can just decide when they would like the line to stop. A line segment is similar to a line, but it...Read More

1 Answer

293 views

What is the current in the light bulb when a 60-watt light bulb is connected to a 120-volt source?

Aidan_lynchcfc
Answered: Apr 19, 2024

0.5 a

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1 Answer

291 views

What is the resultant of a 3 unit vector and a 4 unit vector at right angles to each other?

CGVO
Answered: Apr 19, 2024

5 units

1 Answer

291 views

What is the difference between Ammeter and Voltmeter?

E. Barnes, Professional Gamer
Answered: Aug 22, 2019

The significant difference between the ammeter and the voltmeter is that the ammeter measures the flow of current, whereas the voltmeter measures the emf or voltage across any two points of the...Read More

1 Answer

287 views

What is true about all the points in the object when a rigid object rotates about a fixed axis?

Marissa_santana
Answered: Apr 19, 2024

They all have the same angular speed

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1 Answer

286 views

What makes salt water denser than fresh water?

B. Strickland, Sales Manager
Answered: Dec 23, 2020

Saltwater has a greater density than fresh water because of the sodium chloride it contains. Furthermore, cold saltwater is denser than warm salt water, but it becomes less dense when water...Read More

4 Answers

283 views

How many significant figures in a substance with a mass of 0.07080 grams?

Bigtownslb
Answered: Apr 19, 2024

4

All non-zero digits are significant. Zeros between digits are significant. Zeros in front of a number are not significant. Zeros at the end of a number that represents a measured...Read More

1 Answer

282 views

What is the energy of moving parts called?

RoggerFinch
Answered: Apr 19, 2024

Mechanical Energy

1 Answer

280 views

What is the boiling point of water?

J. Alfie, Content Writer
Answered: Dec 22, 2020

The boiling point of water is 100°C or 212° F. Generally, the boiling point of a liquid is the temperature at which the vapor pressure is equal to 760 mm (the standard sea-level...Read More

6 Answers

277 views

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