1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Vadim26 [7]
3 years ago
15

A car with mass m traveling at speed v has kinetic energy k. what is the kinetic energy of a second car that has the same mass m

and twice the speed of the first car? k 1.4 k 2 k 4 k
Physics
1 answer:
vampirchik [111]3 years ago
7 0
Kinetic energy, KE, is modeled by the formula KE =  \frac{1}{2}mv^2, where m is the mass in kg and v is the velocity in m/s.

In this scenario, mass and one-half are constant but the velocity changes. 

You can see that by squaring twice the velocity, that is equal to four times the original KE. Therefore, the answer is 4k.
You might be interested in
Picking up sound waves is the stage of listening that most people refer to as what?
kirill [66]

A. Picking up sound waves is the stage of listening that most people refer to as hearing.

<h3>What is hearing?</h3>

Hearing, or auditory perception, is the ability to perceive sounds through an organ, such as an ear, by detecting vibrations as periodic changes in the pressure of a surrounding medium.

During learning process, when someone picks up the sound waves directed to him/her, it is known as the act of hearing,

Thus, picking up sound waves is the stage of listening that most people refer to as hearing.

Learn more about hearing here: brainly.com/question/14185060

#SPJ1

5 0
1 year ago
Hiii please help i’ll give brainliest if you give a correct answer please thanks!
mrs_skeptik [129]

Answer:

25 to the right

Explanation:

there you go friend your awsome

4 0
3 years ago
Why do mirrors form inverted images?
marysya [2.9K]

Answer:

Explanation:

The image is real light rays actually focus at the image location). As the object moves towards the mirror the image location moves further away from the mirror and the image size grows (but the image is still inverted).

3 0
3 years ago
Read 2 more answers
If you sight Polaris with an astrolabe and determine its altitude is 20° above the horizon, then what does this tell you about y
oksano4ka [1.4K]
If you sight Polaris at 20 degrees above your Northern Horizon then you know that your latitude is 20 degrees north of the equator.
3 0
3 years ago
Read 2 more answers
How many grams are in 238 moles of arsenic
timofeeve [1]
1 mole of arsenic 75g
238 moles of arsenic x g
x = 17850g of arsenic
8 0
3 years ago
Other questions:
  • A circuit has a current of 1.2 A. If the voltage decreases to one-third of its original amount while the resistance remains cons
    8·1 answer
  • How can two objects have different mass and volume yet have the same density?
    15·1 answer
  • Suppose you are taking a walk one day when you see a tree branch snap at its base and begin to rotate downward with the break ne
    13·1 answer
  • Why does the earth bulge at the equator?
    9·1 answer
  • Two parallel conducting plates are connected to a constant voltage source. The magnitude of the electric field between the plate
    7·1 answer
  • Which statement best explains acceleration? A. It is the total distance covered over a period of time. B. It is a change in velo
    11·2 answers
  • How are we able to break wire by repeated bending​
    15·2 answers
  • What is a gravitational force...??
    5·1 answer
  • What is a Non-Example of Newton's 1st law?
    15·1 answer
  • Which one of these is a compound
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!