Recent questions in Physics

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Which sequence describes how a convection current forms in the air? A Warm air rises-Air gets warmer- -Warm air sinks & Cold air rises-Air warms up-Warm air sinks C. Warm air rises-Air cools off-Cool air

Samsquanch asked Jul 14, 2023

by Samsquanch

6.6k points

2 answers

23 votes

172k views

What is the difference between a testing and outcome variable??

Daniel Olsen asked Jul 14, 2023

by Daniel Olsen

6.1k points

1 answer

2 votes

132k views

How does the frequency of the two waves compare?

Guiweb asked Jul 14, 2023

by Guiweb

6.5k points

1 answer

5 votes

12.9k views

A bicycle wheel, of radius 0.300 m and mass 2.07 kg (concentrated on the rim), is rotating at 4.00 rev/s. After 59.0 s the wheel comes to a stop because of friction. What is the magnitude of the average

Geoffrey Burdett asked Jul 14, 2023

by Geoffrey Burdett

5.6k points

1 answer

2 votes

142k views

What is the last stage for main sequence stars as our sun?

Sarah Messer asked Jul 14, 2023

by Sarah Messer

5.3k points

1 answer

1 vote

172k views

What work must be done to place a satelite of mass 30kg in orbit at a height of 50km above the earth with a velocity of 800m sec?

Alvarodms asked Jul 14, 2023

by Alvarodms

5.7k points

1 answer

1 vote

203k views

The diagram shows changes of state between solid, liquid, and gas. The atoms of a substance lose energy during a change of state. Before the change, the atoms are close together but are able to slide past

Henry Van Megen asked Jul 14, 2023

by Henry Van Megen

5.7k points

2 answers

8 votes

72.1k views

What is the amplitude of the wave?

Michalrudko asked Jul 14, 2023

by Michalrudko

5.7k points

1 answer

11 votes

203k views

The unit of energy is a derived unit give reasons.

Udara Herath asked Jul 14, 2023

by Udara Herath

6.1k points

1 answer

1 vote

79.3k views

Which option below best explains why the second law of thermodynamics isnot violated when the hood of a car gets hot while the car is moving?A. Only part of the heat generated by combustion can be used

Jdepypere asked Jul 14, 2023

by Jdepypere

5.8k points

1 answer

1 vote

97.6k views

3 A driver leaves Beirut at the instant t=0, reaches Saida after 35 minutes. He rests for 11 minutes then drives 45 minutes to reach Tyre. TaGive the instants of the different described events. b What

Hamdy asked Jul 14, 2023

by Hamdy

5.6k points

1 answer

0 votes

148k views

Which variable is the Dependent Variable in that situation? How do you know it's the Dependent Variable?

Chanz asked Jul 14, 2023

by Chanz

5.4k points

1 answer

5 votes

152k views

5. Which of the following is true about the Wechsler tests? O The Wechsler tests use a number of subtests to measure both verbal and nonverbal intelligence. The Wechsler tests use a number of subtests

Peetya asked Jul 14, 2023

by Peetya

5.8k points

1 answer

3 votes

61.7k views

How much energy is required to change a 0.04 kg ice cube from ice at –10°C to water at 80°C?

Akhilesh asked Jul 14, 2023

by Akhilesh

6.9k points

1 answer

4 votes

136k views

A 3.0 kg toy car is released at the top of a frictionless track on the left and rolls off of the track from its right side ramp. The car starts at a height of 0.80 m, goes through a 0.50 m diameter loop,

Matchingmoments asked Jul 14, 2023

by Matchingmoments

5.2k points

2 answers

5 votes

16.4k views

Help me please 1. Since seatbelts simply act as a method to reduce your velocity, why do they need to be used? 2. What is wrong with the assumption that the steering wheel or the dash of the motor vehicle

Zachary Schroeder asked Jul 14, 2023

by Zachary Schroeder

6.4k points

1 answer

5 votes

165k views

if volume of an object is "V" density of fluid "p" and gravitational acceleration is "g". derive an expresion for upthrust (u) exert on the object in terms of V,p,g. when an object is fully immersed in

Nick Banks asked Jul 14, 2023

by Nick Banks

5.7k points

1 answer

12 votes

162k views

Which gives you a frame of reference for your speed when you are riding a train?

Valachio asked Jul 14, 2023

by Valachio

6.5k points

1 answer

23 votes

210k views

Sound can travel incredibly quickly: 1 mile in about 1 12 of a minute. Based on that, what is the approximate speed of sound?.

Thomas Guillerme asked Jul 14, 2023

by Thomas Guillerme

6.0k points

1 answer

0 votes

203k views

What states the purpose of an experiment

Jemaclus asked Jul 14, 2023

by Jemaclus

7.0k points

1 answer

14 votes

217k views

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