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
Fudgin [204]
3 years ago
7

A 2 kg ball travellng to the right with a speed of 4 m/s collidees with a 5 kg ball traveling to the left with a speed of 3 m/s.

Take right to be the positive direction. What is the total momentum of the two balls before they collide? What is the total momentum of the two balls after they collide?
Physics
1 answer:
Savatey [412]3 years ago
5 0

Explanation:

Momentum before collision:

(2 kg) (4 m/s) + (5 kg) (-3 m/s) = -3 kg m/s

No external forces act on the balls, so momentum is conserved.  Therefore, momentum after collision is also -3 kg m/s.

You might be interested in
With a total force of 20,000 newtons, an airplane has a mass of 1,200 kg. What is its acceleration?
swat32

Answer:

<h3>The answer is 16.67 m/s²</h3>

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

a =  \frac{f}{m}  \\

f is the force

m is the mass

From the question we have

m =  \frac{20000}{1200}  =  \frac{200}{12}  \\  = 16.66666...

We have the final answer as

<h3>16.67 m/s²</h3>

Hope this helps you

8 0
3 years ago
What is electric charge ?​
Alenkasestr [34]
DescriptionElectric charge is the physical property of matter that causes it to experience a force when placed in an electromagnetic field. There are two types of electric charge: positive and negative. Like charges repel and unlike attract. An object with an absence of net charge is referred to as neutral.
6 0
3 years ago
Read 2 more answers
The process of gathering information through the senses is called what?​
rodikova [14]

The answer is observation

6 0
3 years ago
What is the distance between lines on a diffraction grating that produces a second-order maximum for 760-nm red light at an angl
Nataly [62]
The condition for maximum intensity is the same as that for a double slit. However, angular separation of the maxima is generally much greater because the slit spacing is so small for a diffraction grating. For a diffraction grating with lines/mm = lines/inch, the slit separation is d = micrometers = x10^ m.
8 0
2 years ago
What two types of scientific knowledge can be expressed as mathematical equations? (Please don't tell me the answer could you pl
gtnhenbr [62]
An example would be 2 types of motion. It could be rectilinear or projectile motion. There are various equations for each type. Since you don't want me to tell you the answer, I could just express it in words. Then, it will be up to you to translate into mathematical equations.

For rectilinear motion, the distance traveled is equal to the initial velocity times the time, plus one-half of the acceleration times the square of the time. For projectile motion, the maximum distance is equal to the square of the initial velocity multiplied with the square of the sine of the launch angle, all over twice the gravity.
5 0
4 years ago
Other questions:
  • The helium that fills a balloon is an example of which state of matter?
    13·2 answers
  • Suppose a cars momentum is calculated to be 36000 kg• km/ hr the mass of the car is 1500 kg what is the magnitude of the velocit
    5·1 answer
  • A very large sheet of insulating material has had an excess of electrons placed on it to a surface charge density of –3.00nC/m2
    15·1 answer
  • Why hail is sometimes dangerous
    13·2 answers
  • What happens to the diffraction pattern when the number of lines per centimeter of a diffraction grating is increased?
    11·1 answer
  • Some people hang wet clothing outside to dry on warm sunny days. Use particle theory to explain how this technique works. What w
    7·1 answer
  • When riding a roller coaster, you go up and down many hills. When do you have the least amount of kinetic energy?
    7·2 answers
  • If the voltage in a circuit is 24 V and the current is 2 A, what is the total power in the circuit?
    9·2 answers
  • A ball of mass 0.600 kg is carefully balanced on a shelf that is 2.20 m above the ground. What is its gravitational potential en
    12·1 answer
  • is training for cross country in the fall she ran 5 miles east then she turned and ran 5 miles west. draw and label the vectors
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!