Recent questions in Physics

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find the velocity of the moving carwhen the mass is 450 kg andmomentum is 1200 kgm/s 1. 2.8 m/s2. 2.6 m/s

Pandelis asked Dec 28, 2023

by Pandelis

3.7k points

1 answer

4 votes

163k views

You weigh 720 N. What would you weigh if the Earth weretwo times as massive as it is and its radiuswere six times its present value?Answer in units of N.

Akshay Rajput asked Dec 28, 2023

by Akshay Rajput

4.0k points

1 answer

0 votes

14.5k views

What is the specific heat of a substance that requires 99,100 J of thermal energy to heat 3.47 kg of this substance from 11°C to 45°C?

Nate Cook asked Dec 28, 2023

by Nate Cook

4.1k points

1 answer

2 votes

86.0k views

when you drop an object from a height, does the energy transferred to its kinetic energy stores increase or decrease as it falls?

M Z asked Dec 28, 2023

by M Z

4.1k points

1 answer

4 votes

1.2k views

A ball with 5j of GPE falls to the ground. What is the KE of the ball at the moment it hits the ground

Tim Van Uum asked Dec 28, 2023

by Tim Van Uum

4.1k points

1 answer

0 votes

195k views

An object has an excess charge of −1.6 × 10−17 C. How many excess electrons does it have?

Rrawat asked Dec 28, 2023

by Rrawat

4.4k points

1 answer

1 vote

90.0k views

A plane took 3h 00 min to finish a journey if the distance of the journey was 3000 miles at what average speed did the plane travel

Shaan asked Dec 28, 2023

by Shaan

4.2k points

2 answers

16 votes

20.0k views

A 5-ohm heater draws 9 amperes from a power supply. What is the voltage of the power supply?

Anakin Skywalker asked Dec 28, 2023

by Anakin Skywalker

4.1k points

1 answer

2 votes

11.5k views

What is the speed of light in a block of glass that has an index of refraction of 1.58?

George Valkov asked Dec 28, 2023

by George Valkov

4.7k points

1 answer

1 vote

203k views

An object is suspended from two cables that meet at a point above the object. One cable pulls with a force modeled by F1 = −78i + 44j. The other cable pulls with a force modeled by F2 = 87i + 80j. What

Azbarcea asked Dec 28, 2023

by Azbarcea

3.9k points

1 answer

2 votes

47.2k views

Find the acceleration of a toy place whose velocity as a function of time is given by the graph belowat a) t = 4.00 s b) t = 9.00 s and c) t = 11.0 s.

Kikulikov asked Dec 28, 2023

by Kikulikov

4.3k points

1 answer

1 vote

4.9k views

The Effiel tower is 315 meters tall on a day when it’s -10 degrees C outside. What is the new height On a hot day when the temperature is 28°C? The tower is made of iron which has a coeffiencent of linear

Alexander Gorban asked Dec 28, 2023

by Alexander Gorban

3.5k points

1 answer

4 votes

93.6k views

An object is 3.0 cm from a concave mirror, with a focal length of 1.5cm. Calculate the image distance. Remember to include your data, equation, and work when solving this problem. (5 points)

Russellpierce asked Dec 28, 2023

by Russellpierce

4.6k points

1 answer

2 votes

164k views

The momentum of an object is determined by the object’s mass and velocity. Which object has more momentum?

Michael Mikowski asked Dec 28, 2023

by Michael Mikowski

3.6k points

1 answer

2 votes

75.9k views

Myopia is caused when the (a) eye lens becomes thick (b) eye lens becomes thin (c) eye ball becomes shorter then the normal size (d) none of the above

JJF asked Dec 28, 2023

by JJF

4.2k points

1 answer

6 votes

136k views

Suppose you are playing pool with a friend. The white cue ball travels 10 m/s toward the black eight-ball, which is at rest. After they collide, the cue ball is at rest and the eight-ball is moving. Both

VirtualVDX asked Dec 28, 2023

by VirtualVDX

4.4k points

1 answer

3 votes

120k views

What are two uses of converging mirrors

Raphaelle asked Dec 28, 2023

by Raphaelle

3.9k points

1 answer

12 votes

234k views

Boxes are dragged along a rough surface. Calculate the acceleration of the following object below

Jankapunkt asked Dec 28, 2023

by Jankapunkt

3.8k points

1 answer

2 votes

3.0k views

A train car with a mass of 10 kg and speed of 10 m/s is traveling to the right. Another train car with an unknown mass is stationary. After the collision, the 10 kg train car is now moving at 5 m/s and

Chris Crewdson asked Dec 28, 2023

by Chris Crewdson

4.5k points

1 answer

4 votes

64.7k views

An object of the same mass has three different weights at different times.

Aso asked Dec 28, 2023

by Aso

5.3k points

1 answer

10 votes

47.2k views

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