Recent questions in Physics

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How can you turn a vehicle around in a limited space using a series of back and forward movements?

Ymnk asked Dec 24, 2024

by Ymnk

8.2k points

1 answer

5 votes

188k views

How to calculate tension force.

Barry Colebank Jr asked Dec 24, 2024

by Barry Colebank Jr

8.2k points

1 answer

0 votes

88.9k views

Air molecules in a warm room (27°C = 300 K) typically have speeds of about 500 m/s (1,100 mph). Why is it that we are unaware of these fast-moving particles continuously colliding with our bodies? Because

Federico Gentile asked Dec 24, 2024

by Federico Gentile

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1 answer

5 votes

133k views

Which of the following statements about Maxwell's equations are correct? 1) Maxwell's equations describe the behavior of electric and magnetic fields. 2) Maxwell's equations are a set of four partial differential

Mark Scheel asked Dec 24, 2024

by Mark Scheel

8.5k points

1 answer

4 votes

163k views

A book weighs 4 n. when held at rest in your hands, the net force on the book is selected: a. 4 answer is incorrect. b. 0 n. c. 0.4 n. d. 39 n. e. none of the above

Pijusn asked Dec 24, 2024

by Pijusn

7.8k points

1 answer

1 vote

83.0k views

A fuse is a safety device placed in a circuit to limit the amount of current that can flow in the circuit . one True False

Fusyion asked Dec 24, 2024

by Fusyion

8.5k points

1 answer

2 votes

50.7k views

For the pulley, what is the relationship between the input force and the output force?

Itinance asked Dec 24, 2024

by Itinance

8.2k points

1 answer

2 votes

149k views

A physical property is a characteristic of a substance that can be observed and measured without changing the identity of the substance. Which of the following would be considered a physical property?

Knownasilya asked Dec 24, 2024

by Knownasilya

8.3k points

1 answer

3 votes

58.4k views

As part of an experiment to determine the density of a new plastic developed in her laboratory, Sara Ann Dippity measures the volume of a solid sample. Her four trials yield volumes of 12.37 cm3, 12.41

Marieli asked Dec 24, 2024

by Marieli

7.9k points

1 answer

3 votes

75.2k views

If the force acting on a body is inversely proportional to its speed, the kinetic energy of the body is A. constant B. directly proportional to time C. inversely proportional to time D. directely proportional

NightFuryLxD asked Dec 24, 2024

by NightFuryLxD

7.9k points

1 answer

0 votes

137k views

An object appears green. What wavelength of visible light is your eye detecting? a. 380 – 440 nm b. 440 – 485 nm c. 510 – 565 nm d. 625 – 740 nm

Jwimberley asked Dec 24, 2024

by Jwimberley

7.0k points

1 answer

2 votes

184k views

A ball is pushed from a stop and rolls 6m in 2s. Student A says the average speed of the ball is 3m/s. Student B says the average speed of the ball is 1.5m/s². Which student is correct? Explain.

Jon Sakas asked Dec 24, 2024

by Jon Sakas

8.9k points

1 answer

3 votes

110k views

The speed that _______ the cost of transport is the speed that _______ the distance that can be traveled with a given amount of energy.

Jingteng asked Dec 24, 2024

by Jingteng

8.0k points

1 answer

0 votes

183k views

If →a=i+j+k,→b=2i−j+3k and →c=i−2j+k, find a unit vector parallel to the vector 2→a−→b+3→c .

Milean asked Dec 24, 2024

by Milean

8.1k points

1 answer

1 vote

3.8k views

A water wave travels a distance of 30m in 15s. What is the wave's speed in m/s?

Vincent Robert asked Dec 24, 2024

by Vincent Robert

7.6k points

1 answer

5 votes

158k views

An angle protractor marked with four arrows. a at forty degrees. b at seventy five degrees. c at one hundred twenty degrees. the arrow at one hundred eighty degrees has no name. What is the name of the

Suncoastkid asked Dec 24, 2024

by Suncoastkid

8.0k points

1 answer

3 votes

178k views

A 2.75 kg sample of a substance occupies a volume of 250 cm³ . Find the density in g/cm³ and kg/m³

Artgb asked Dec 24, 2024

by Artgb

8.7k points

1 answer

1 vote

111k views

What is the approximate energy of a photon having a frequency of 4 x 10^14 Hz? a. 3 x 10^-26 b. 3 x 10^42 c. 3 x 10^-27 d. 2 x 10^-41

Martin Valgur asked Dec 24, 2024

by Martin Valgur

8.6k points

1 answer

3 votes

36.6k views

Astronomers observing spectral lines can observe red or blue shifts in wavelengths, which can be used to determine _____. a) Planetary orbits b) Stellar distances c) Atmospheric pressure d) Geological

Jorel Amthor asked Dec 24, 2024

by Jorel Amthor

7.5k points

1 answer

1 vote

21.6k views

Consider the angle shown below that has a measure of theta radians. Suppose that cos(theta) = 0.622. What is the value of theta in radians?

Arogachev asked Dec 24, 2024

by Arogachev

7.8k points

1 answer

0 votes

70.4k views

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