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
klio [65]
3 years ago
5

What is it that changes an objects momentum ?

Physics
1 answer:
faust18 [17]3 years ago
3 0
An opposing force (another object colliding into it) (friction)
You might be interested in
So far, you’ve been working with an "ideal" pulley system. How do you think real pulley systems are different, and how would tha
almond37 [142]

Answer:

In an ideal pulley system is assumed as a perfect system, and the efficiency of the pulley system is taken as 100% such that there are no losses of the energy input to the system through the system's component

However, in a real pulley system, there are several means through which energy is lost from the system through friction, which is converted into heat, sound, as well as other forms of energy

Given that the mechanical advantage = Force output/(Force input), and that the input force is known, the energy loss comes from the output force which is then reduced, and therefore, the Actual Mechanical Advantage (AMA) is less than the Ideal Mechanical Advantage of an "ideal" pulley system

The relationship between the actual and ideal mechanical advantage is given by the efficiency of the pulley system as follows;

Efficiency \, \% = \dfrac{AMA}{IMA}  \times 100

Explanation:

8 0
3 years ago
Which of the following is a resistor?<br> fan<br> switch<br> battery<br><br><br> Thank you!
Rama09 [41]
The answer is battery:)
6 0
3 years ago
Read 2 more answers
at location a, what are the directions of the electric fields contributed by the electron. calculate the magnitudes of the elect
Lisa [10]

We can use the equation E = k | Q | r 2 E = k | Q | r2 to find the magnitude of the electric field. The direction of the electric field is determined by the sign of the charge,

<h3>What is electric and magnetic field ?</h3>

With the use of electricity and other types of artificial and natural illumination, invisible energy fields known as electric and magnetic fields (EMFs) and radiation are created.

  • While the magnetic field is discernible by the force it exerts on other magnetic particles and moving electric charges, the electric field is actually the force per unit charge experienced by a non-moving point charge at any given location inside the field.

Learn more about Electromagnetic field here:

brainly.com/question/14372859

#SPJ4

4 0
1 year ago
What is the average speed of a car that traveled 222.0 miles in 4.596 hours?
vivado [14]
48.3 mph
If you need more answers like this I suggest countcalculate .com
4 0
3 years ago
who brought astronomy out of the dark ages by declaring: "finally we shall place the sun himself at the center of the universe.
solong [7]

Nicolaus Copernicus was the one who brought astronomy out of the dark ages.

In one of his books "On the Revolutions of the Heavenly Bodies", he published the renowned line which declares his theory.

Nicolaus Copernicus, A polish astronomer put forward the theory that the is th Sun one that rests in the middle or center of the Universe and the planet Earth revolves around it on its axis every day.which was considered to be called the Heliocentric system.

To know more about the Heliocentric system refer to the link brainly.com/question/3491738?referrer=searchResults.

To know about Sir Nicolaus Copernicus' work refer to the link brainly.com/question/6699117?referrer=searchResults.

#SPJ4

6 0
2 years ago
Other questions:
  • A newly discovered planet has a mean radius of 7380 km. A vehicle on the planet\'s surface is moving in the same direction as th
    8·1 answer
  • Two waves equal amplitudes meet other result in a wave with zero amplitudes. Which phenomenon
    6·1 answer
  • you read about a rope and pulley machine that was able to produce equal amounts of output work and input work.was this a realist
    15·2 answers
  • a. What is the absorption coefficient for tin, with an imaginary part of the refractive index equal to 5.3 for 589.3-nm light? b
    9·1 answer
  • A friend claims that throwing a baseball up towards the school roof illustrates gravitational potential energy transforming into
    6·1 answer
  • A cat is sleeping on the dashboard of a moving car. Imagine that the cat does not wake up and is not touched by anything. Use Ne
    5·1 answer
  • The Sl temperature scale used in science is the
    6·2 answers
  • Based on the graph what kind of relationship exists between the change in temperature of the water in the gravitational potentia
    10·2 answers
  • Which star listed is the brightest intrinsically? Which is the intrinsically faintest?
    13·1 answer
  • A spaceship travels at approximately 0. 25c with respect to earth. this means 24 hours at the spaceship will be x hours to us on
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!