Recent questions in Physics

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Determine the velocity of a car that starts at rest and has a final velocity of 20 m/s north.

Stratis asked Jul 19, 2023

by Stratis

5.9k points

1 answer

3 votes

152k views

Vhich type of reaction is modeled by this chemical equation? PLi + CaCl2 - 2LICI + Ca

MoShamroukh asked Jul 19, 2023

by MoShamroukh

6.8k points

1 answer

23 votes

152k views

A skydiver falls toward the ground at a constant velocity. Which statement best applies Newton’s laws of motion to explain the skydiver’s motion? An upward force balances the downward force of gravity

Valiante asked Jul 19, 2023

by Valiante

8.0k points

2 answers

0 votes

46.9k views

Sodium has a density of 1.95 g/cm3. What is the volume of 56.2 g of sodium?

Erdem Ergin asked Jul 19, 2023

by Erdem Ergin

6.9k points

1 answer

4 votes

160k views

What do you think causes such change in wave velocity?

Libu Mathew asked Jul 19, 2023

by Libu Mathew

6.8k points

1 answer

16 votes

128k views

Salmon often jump waterfalls to reach their breeding grounds. Starting downstream, 3.02 m away from a waterfall 0.258 m in height, at what minimum speed must a salmon jumping at an angle of 36.2° leave

Metaxal asked Jul 19, 2023

by Metaxal

6.7k points

2 answers

2 votes

167k views

What is 7 times 7 times 7 plus 3

Vikram Rao asked Jul 19, 2023

by Vikram Rao

7.0k points

1 answer

5 votes

132k views

When one of the lamps on a string of lights breaks, the others go out as well. What does this tell you about the way the lamps are connected?

David Douglas asked Jul 19, 2023

by David Douglas

6.7k points

1 answer

23 votes

162k views

A 14000 N car traveling at 25 m/s rounds a curve of radius 200 m. What is the magnitude of the net force of the car that is keeping it moving in a circle? ______ N?

DiogoSantana asked Jul 19, 2023

by DiogoSantana

5.7k points

1 answer

0 votes

23.4k views

While electric current is flowing through a wire, what surrounds the wire?.

Tom Deseyn asked Jul 19, 2023

by Tom Deseyn

5.8k points

1 answer

0 votes

117k views

Please help me complete section 3 with data points provided

Voivoid asked Jul 19, 2023

by Voivoid

6.4k points

1 answer

4 votes

120k views

Hello people ~ When air is replaced by a dielectric medium of constant K, the maximum force of attraction between two charges separated by a distance (a) increases K times (b) remains unchanged (c) decreases

Kene David Nwosu asked Jul 19, 2023

by Kene David Nwosu

6.5k points

1 answer

0 votes

97.6k views

if a cart has 100 Joules of potential energy at the top and then 18 Joules of that gets converted into kinetic energy, how much potential energy does them cart still have?

Tnc Andrei asked Jul 19, 2023

by Tnc Andrei

6.3k points

1 answer

1 vote

97.9k views

2. A 2000 kg car collides at 30 m/s into a stationary car with a mass of 2500 kg. The twocars stick together after colliding. What is the speed of the cars after the collision?

Varun Chhangani asked Jul 19, 2023

by Varun Chhangani

6.8k points

1 answer

4 votes

118k views

Select the correct answer. How do we define energy efficiency? A. the ratio of the actual output energy to the input energy B. the ratio of power gain to power loss c. the product of input power and output

Ryan Le asked Jul 19, 2023

by Ryan Le

6.5k points

1 answer

23 votes

65.3k views

1.1 Which of the following pairs can be classified as vectors? A. Friction and mass B. Mass and inertia C. Inertia and weight D. Weight and friction

Thiago Loddi asked Jul 19, 2023

by Thiago Loddi

6.1k points

1 answer

0 votes

83.4k views

Please help me solve The resistivity of nichrome is 1.5 x 10^(-6) ohm meter.

Bjaksic asked Jul 19, 2023

by Bjaksic

6.4k points

1 answer

0 votes

106k views

Evan performed an experiment testing how different wind speeds affect how fast a small cart will roll down a ramp. His data from the experiment is shown in the graph below.

Andrey Yaskulsky asked Jul 19, 2023

by Andrey Yaskulsky

6.8k points

1 answer

2 votes

96.2k views

How can geo thermal energy be used ?

Fylooi asked Jul 19, 2023

by Fylooi

6.0k points

2 answers

13 votes

38.2k views

What is standard one kilogram ?

Pete Michaud asked Jul 19, 2023

by Pete Michaud

5.3k points

2 answers

2 votes

161k views

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