Recent questions in Physics

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A box has 300 kg mass The surface area of the boxis 150 m^2 What is the pressure exerted by the box on the floor

Assassinbeast asked Jun 13, 2023

by Assassinbeast

4.1k points

1 answer

4 votes

209k views

Suppose you have a 0.843 kg object on a horizontal surface connected to a spring that has a force constant of 187 N/m. There is simple friction between the object and surface with a static coefficient

Haoqun Jiang asked Jun 13, 2023

by Haoqun Jiang

4.1k points

1 answer

4 votes

133k views

What is the process of charging by induction?

Mathijs asked Jun 13, 2023

by Mathijs

4.9k points

1 answer

19 votes

203k views

How much kinetic energy is present in a 1040 kg car moving 19.5 m/s? A. 53.3 J B. 1060 J C. 20300 J D. 198000 J

Giles Thompson asked Jun 13, 2023

by Giles Thompson

4.3k points

1 answer

19 votes

154k views

A metal spoon was placed in a dish of ice cream and became cool. Which correctly describes the heat transfer process that resulted in the cooling of the spoon?.

Piyush Chordia asked Jun 13, 2023

by Piyush Chordia

4.0k points

1 answer

23 votes

213k views

The statement by Newton that for every action there is an equal but opposite reaction is which of his laws of motion?

Richard Read asked Jun 13, 2023

by Richard Read

4.7k points

1 answer

3 votes

228k views

Please need your help asap !!! An arcade machine uses a spring to push a metal ball. (a) How is energy stored in a spring when it is compressed?

MusikPolice asked Jun 13, 2023

by MusikPolice

3.4k points

2 answers

11 votes

209k views

A car of mass 1,000 kg traveling at 13.67 m/s collides and sticks to a car with a mass of 1,879 kg initially at rest. What is the resulting velocity of the two cars right after the collision, assuming

BiscuitBaker asked Jun 13, 2023

by BiscuitBaker

4.1k points

1 answer

1 vote

67.4k views

It is very likely that human emissions of greenhouse gases are responsible for global warming. Give two examples of such activities and explain briefly how they cause global warming.

Svichkar asked Jun 13, 2023

by Svichkar

4.0k points

1 answer

5 votes

224k views

electrons flow through a 1.6-mm-diameter aluminum wire at 2.0 * 10-4 m/s. how many electrons move through a cross sec- tion of the wire each day?

Chad Baldwin asked Jun 13, 2023

by Chad Baldwin

4.2k points

1 answer

2 votes

154k views

A sound wave from a clock tower chimes with a frequency of 436 Hz. It is heard by someone who is 515 m away 1.5 seconds after it chimes. What is the speed of the wave?

Dola asked Jun 13, 2023

by Dola

4.6k points

1 answer

4 votes

134k views

How would you explain to a friend who had never taken a physics course (a) what is an electric field? (b) what are electric field lines? (c) how does the electric field lines of a positive charge differs

Jarred Olson asked Jun 13, 2023

by Jarred Olson

4.8k points

1 answer

3 votes

196k views

Supose 1.3 Kg of water are heated from 20 °C to 80 °C. How much energy was transferred to the water?(Water Specific heat capacity is 4184 J/Kg-°C).

Ridgerunner asked Jun 13, 2023

by Ridgerunner

4.3k points

1 answer

2 votes

186k views

Given v = 520 sin (30t - 5π/4), what is the phase angle?Question 4 options:-225 degrees90 degrees-135 degrees-90 degrees

Angelo Vargas asked Jun 13, 2023

by Angelo Vargas

4.1k points

1 answer

2 votes

75.0k views

Read about a process that helps shape Earth’s surface. Water on Earth’s surface seeps into rocks. When water in the cracks freezes, it expands and breaks the rocks apart. This process is called frost wedging.

Hornobster asked Jun 13, 2023

by Hornobster

3.7k points

2 answers

20 votes

229k views

At the time of Copernicus, what was the strongest argument against the heliocentric or Sun-centered model of the Solar System? The fact that the earth does not seem to be in motion Telescopic observations

Jdot asked Jun 13, 2023

by Jdot

4.3k points

1 answer

24 votes

119k views

What is the centripetal acceleration acting on a 19 kg ball if it is being spun around by a tension force of 125 N?

Cfi asked Jun 13, 2023

by Cfi

3.8k points

1 answer

2 votes

223k views

Explain why the bowling ball slows down when it hits the pin. Which of these is correct: Because the ball loses momentum. The momentum is conserved because the total momentum before the interaction is

Ravi Macha asked Jun 13, 2023

by Ravi Macha

4.2k points

1 answer

2 votes

99.0k views

Around the globe, ______ million people die from alcohol-related illness or injuries each year.

Alex Hague asked Jun 13, 2023

by Alex Hague

3.7k points

1 answer

4 votes

207k views

A ball is thrown 190 m upward and then falls back to earth. Neglecting air resistance, how long will it be in the air?

Raviraj Palvankar asked Jun 13, 2023

by Raviraj Palvankar

3.7k points

1 answer

1 vote

203k views

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