Recent questions in Physics

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Can you please help me with my first lap question

Whelkaholism asked Jul 9, 2023

by Whelkaholism

5.8k points

1 answer

3 votes

203k views

A uniform solid sphere of unknown radius and mass floats exactly half-submerged in a fluid of density 999 kg/m3. Find the density of the material of which the sphere is made (in kg/m3).

PlainRavioli asked Jul 9, 2023

by PlainRavioli

6.0k points

1 answer

20 votes

86.1k views

A Ferris wheel with a diameter of 40 m makes one revolution every 20 minutes. What is its average speed in meter/min?

Dmitry Grinko asked Jul 9, 2023

by Dmitry Grinko

6.8k points

1 answer

5 votes

109k views

Two rocks, A and B, are thrown horizontally from the top of a cliff. Rock A has an initial speed of 10 meters per second and rock B has an initial speed of 20 meters per second. How would you describe

Bunndan asked Jul 9, 2023

by Bunndan

6.0k points

1 answer

11 votes

188k views

How are seismic waves and sound waves similar? How are they different?

Cbmanica asked Jul 9, 2023

by Cbmanica

6.0k points

1 answer

2 votes

56.5k views

You push a 55.0 kg block to the left with a 245 N force along a frictionless, level surface. The block starts from rest. b) If you were to let go, how much time would it take for the block to come to rest?

Icordoba asked Jul 9, 2023

by Icordoba

6.8k points

1 answer

13 votes

230k views

How much energy does it take to make a fission reaction? a

Sbordet asked Jul 9, 2023

by Sbordet

5.7k points

1 answer

0 votes

179k views

What is the percentage efficiency of a 70W bulb that produces 210J of light energy over a minute?

Lamcro asked Jul 9, 2023

by Lamcro

6.1k points

2 answers

0 votes

80.3k views

Monochromatic light of 605 nm falls on a single slit of width 0.095 mm. The slit is located 85 cm from a screen. How far from the center is the first dark band?540 mm5,400 mm0.5 mm5.4 mm

Ragnarokkr asked Jul 9, 2023

by Ragnarokkr

5.9k points

1 answer

1 vote

108k views

A communications satellite is in a circular orbit around Earth at radius R and velocity v. A rocket accidentally fires quite suddenly, giving the rocket an outward radial velocity v in addition to its

Jack Simpson asked Jul 9, 2023

by Jack Simpson

6.1k points

1 answer

24 votes

64.7k views

Which force will return the fishing pole to its natural shape? (when bended) balanced forces tension net force compression

Redditor asked Jul 9, 2023

by Redditor

5.7k points

1 answer

21 votes

84.2k views

Would a glowing rod be hotter if it was white or red? Why?

Michael Insalaco asked Jul 9, 2023

by Michael Insalaco

6.1k points

1 answer

5 votes

166k views

Destructive interference in a standing wave produces points with zero amplitude called nodes * true or false

Jlents asked Jul 9, 2023

by Jlents

6.4k points

1 answer

9 votes

121k views

Standing waves are produced in a string by two waves travelling in opposite directions at 6.0 m/s. The distance between the second and sixth node is 80 cm. Determine the wavelength and frequency of the

John Goodman asked Jul 9, 2023

by John Goodman

6.3k points

1 answer

1 vote

118k views

3) an electrical heater raises the temperature of a measured quantity of water. six thousand joules of energy is absorbed by the water from the heater in 30.0 seconds. what is the minimum power rating

Johnashu asked Jul 9, 2023

by Johnashu

6.0k points

1 answer

6 votes

100k views

24) To determine the location of her center of mass, a physics student lies on a lightweight plank supported by two scales 2.50 m apart. If the left scale reads 435 N, and the right scale reads 183 N,

Halil ?Brahim YILMAZ asked Jul 9, 2023

by Halil ?Brahim YILMAZ

5.7k points

1 answer

0 votes

212k views

Two 10¢ coins (dimes) carrying identical charges are lying 2.5 m apart on a table. If each of these coins experiences an electrostatic force of magnitude 2.0 N due to the other coin, how large is the charge

Spongebob Comrade asked Jul 9, 2023

by Spongebob Comrade

6.5k points

1 answer

3 votes

119k views

Efficiency is the ratio of what expressed as a percentage

Paal Pedersen asked Jul 9, 2023

by Paal Pedersen

6.3k points

1 answer

1 vote

23.3k views

Romeo and Juliet are sitting on a balcony 1.5 meters apart. If Romeo has a mass of 61.6 Kg and Juliet has a mass of 48.8 kg. What is the attractive force between them?

Arninja asked Jul 9, 2023

by Arninja

6.3k points

1 answer

3 votes

92.4k views

A car is moving at 45 m/s on a circular track of raduis 55 m. What is the acceleration of the car?

Gavin Simpson asked Jul 9, 2023

by Gavin Simpson

6.0k points

1 answer

5 votes

126k views

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