Recent questions in Physics

Question

A magnetic field of 2.00×10^−7 T in the positive x-direction exists. Three electrons pass through the origin, one at a time, each with a velocity of 5.00×10^7 m/s. The first electron passes the origin

Tomask asked Oct 14, 2024

by Tomask

7.5k points

1 answer

4 votes

181k views

Sam (84.5 kg) and Alice (42.3 kg) stand on an ice rink, providing them with a nearly frictionless surface to slide on. Sam gives Alice a push, causing her to slide away at a speed (with respect to the

Hafizur Rahman asked Oct 14, 2024

by Hafizur Rahman

8.2k points

1 answer

4 votes

102k views

Which of the following would have the greatest penetrating power into matter? A. Alpha particles B. Gamma rays C. Beta particles D. Neutrons

Kedar asked Oct 14, 2024

by Kedar

8.2k points

1 answer

3 votes

22.1k views

The purpose of a shading coil on an AC electromagnetic pole top is to A. Prevent overheating of the coil B. Limit the tripping current C. Limit the closing current D. Prevent chattering

Kirlich asked Oct 14, 2024

by Kirlich

8.5k points

1 answer

2 votes

228k views

If the select line s is switched from a logical 0 to 1, what will the output be?

Kennypu asked Oct 14, 2024

by Kennypu

7.5k points

1 answer

2 votes

137k views

The observed length (L) of the ship remains constant if it is traveling at 50% of the speed of light. a) True b) False

Geo V L asked Oct 14, 2024

by Geo V L

9.2k points

1 answer

1 vote

155k views

You can shoot an arrow straight up so that it reaches the top of a 25-m tall building. The arrow starts 1.45 m above the ground. What is the maximum height the arrow can reach? 1) 20.55 m 2) 23.55 m 3)

Kishan Oza asked Oct 14, 2024

by Kishan Oza

8.2k points

1 answer

2 votes

126k views

Which method identifies the best-fitting line when determining closeness?

Jan Larres asked Oct 14, 2024

by Jan Larres

7.7k points

1 answer

0 votes

167k views

a ball is thrown vertically upwards with a velocity of 15m/s. calculate (i) the maximum height to which it rises, (ii) the total time it takes to return to the surface of the earth.

Amy M asked Oct 14, 2024

by Amy M

8.5k points

1 answer

0 votes

105k views

Mass 1 is moving in the positive x-direction and strikes a target mass that is at rest in a one-dimensional elastic collision. If mass 1 is equal to the target mass, what happens to mass 1 after the collision?

Shenice asked Oct 14, 2024

by Shenice

7.9k points

1 answer

3 votes

216k views

Match each pair of equivalent fractions. 1. 3a/b² - a. 4a/8ab 2. 3b²/1a² - b. 9b³/-3a²b 3. -1/2b - c. 3a^4/1a³b² 4. -1a²b/2 - d. 5a^4b/-10a² a. 1,2 and 3 b. 1,2 and 4 c. All d. 1 only

Dmitry Simakov asked Oct 14, 2024

by Dmitry Simakov

8.2k points

1 answer

1 vote

25.7k views

In recent years, astronomers have found planets orbiting nearby stars that are quite different from planets in our solar system. Kepler-39b has a diameter that is 1.2 times that of Jupiter (rJupiter =

Jonavon asked Oct 14, 2024

by Jonavon

7.6k points

1 answer

2 votes

198k views

A device obeying Ohm's law must have a resistance which is A. proportional to voltage B. constant C. proportional to current D. zero

Sudhir Dhumal asked Oct 14, 2024

by Sudhir Dhumal

8.7k points

1 answer

2 votes

215k views

True or False: A vacuum tube can only exist in one of two states - conductive and non-conductive.

Erlock asked Oct 14, 2024

by Erlock

8.0k points

1 answer

4 votes

122k views

If a sphere is proportionally scaled by 200, what will be the effect on its volume? 1) The volume will increase by a factor of 200 2) The volume will increase by a factor of 400 3) The volume will increase

Paul Lorica asked Oct 14, 2024

by Paul Lorica

7.9k points

1 answer

4 votes

77.7k views

Namethephysicalquantitiesdenotedbythe(i)slopeofthedistance-timegraph

Gpmurthy asked Oct 14, 2024

by Gpmurthy

8.7k points

1 answer

4 votes

58.3k views

Given a 256 Hz tuning fork and a guitar, how could you produce a beat frequency of 4 Hz?

Mcelik asked Oct 14, 2024

by Mcelik

8.1k points

1 answer

4 votes

150k views

Drag the correct factor of production to match with the corresponding resource: 1. Land 2. Physical capital 3. Labor a. Natural resources such as forests, minerals, and water. b. Human effort and skill

Keeganwatkins asked Oct 14, 2024

by Keeganwatkins

8.1k points

1 answer

3 votes

170k views

The amount of temperature increase above the saturation point is called: A Sensible temperature B Latent temperature C Sub-cooling temperature D Superheat temperature

Karim Oukara asked Oct 14, 2024

by Karim Oukara

7.9k points

1 answer

1 vote

45.4k views

Help me out with this question...

Anand Gaurav asked Oct 14, 2024

by Anand Gaurav

7.7k points

1 answer

4 votes

39.2k views

Page:

« prev
1
...
951
952
953
954
955
956
957
...
1000
...
next »

Ask a Question

Recent questions in Physics

Other Questions