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
tatiyna
3 years ago
15

Two billiard balls move toward each other on a table. The mass of the number three ball, m1, is 5 g with a velocity of 3 m/s. Th

e mass of the eight ball, m2, is 6 g with a velocity of 1 m/s. After the balls collide, they bounce off each other. The number three ball moves off with a velocity of 5 m/s. What is the final velocity and direction of the eight ball?
Physics
2 answers:
Stels [109]3 years ago
6 0

This question deals with the law of conservation of momentum, which basically says that the total momentum in a system must stay the same, provided there are no outside forces. Since you were given the mass and velocity of the two objects you can find the momentum (p=mv) of each and then add them together to find the total momentum of the system before they collide. This total momentum must be the same after they collide.  Since you have the mass and velocity of one of the objects after the collision you can find the its momentum after.  Subtract this from the the system total and you will have the momentum of the other object after the collision.  Now that you know the momentum of the other object you can find its velocity using p=mv and its mass from before.

Be careful with the velocities.  They are vectors, so direction matters.  Typically moving to the right is positive (+) and moving to the left is negative (-).  It is not clear from your question which direction the objects are moving before and after the collision.

mote1985 [20]3 years ago
6 0

Answer: +5.7 m/s

Explanation: I had the same question for physics.

You might be interested in
An adult elephant has a mass of about 5.0 tons. An adult elephant shrew has a mass of about 50 grams. How far r from the center
Diano4ka-milaya [45]

Answer:

2023857702.507m

Explanation:

f=\frac{GMm}{r^{2} }

recall from newton's law of gravitation

G=gravitational constant

mshew=50g

melephant=5*10^3kg

rearth=radius of the earth 6400km or 6400000m

mearth= masss of the earth

Gm(shrew)m(earth)/r(earth)^2 = Gm(elephant)m(earth)/r^2

strike out the left hand side and right hand side variables

m(shrew)/r(earth)^2 = m(elephant)/r^2

r^2 = m(elephant).r(earth)^2 / m(shrew)       .........make r^2 the subject of the equation

r^2=(5*10^{3} *(6400000)^{2} )/.05

r^2=40960000000000

r=2023857702.507m

4 0
3 years ago
You know from experiment that a certain solution of fissile material dissolved in liquid is almost exactly critical when placed
Shtirlitz [24]

Ham como assim pq ta em ingles

8 0
3 years ago
Which statement is NOT true about voltage?
Tom [10]

The first two choices are both false, but the <em>second one</em> is the falser one.

All electricity sources do <em>not</em> have the same voltage. The outlet in your bedroom wall supplies 120 volts, but the USB port on your laptop only supplies 5 volts, and the battery in your cellphone only supplies 3.7 volts.

8 0
3 years ago
Two equal mass carts approach each other with velocities equal in magnitude but opposite in direction. Friction can be neglected
Viefleur [7K]

Answer:

0

Explanation:

Since momentum is given by:

\vec{p}=m.\vec{v}

Therefore momentum is a vector quantity in the direction of velocity.

  • Inelastic collision is the type of collision in which the masses combine after collision and start moving in the direction of the greater momentum but here in this case we have the momentum equal and opposite in direction.

<u>This case can be described mathematically as:</u>

m_1.\vec{v_1}=m_2.\vec{v_2}

since the mass and velocity are equal:

m.\vec{v}=m.\vec{v}

net momentum:

p_{net}=0

7 0
3 years ago
A chemical process with an e-factor of 1 creates less waste than an e-factor of 25?
morpeh [17]

A chemical process with an e-factor of 1 creates less waste than an e-factor of 25 is True.

<h3>What do you mean by E-factor?</h3>

The actual amount of waste produced during the process—which is referred to as anything other than the targeted product—is known as the E factor. It considers the chemical yield as well as reagents, solvent losses, all process aids, and, in theory, fuel (although this is often difficult to quantify). There is one exception: I often did not include water in the E factor calculation. For instance, only the inorganic salts and organic chemicals present in an aqueous waste stream are taken into account; the water itself is left out. In many instances, the inclusion of water used in the process might result in very high E factors, which can make it challenging to compare processes in a meaningful way.

To learn more about E-factor, Visit:

brainly.com/question/12183753

#SPJ4

8 0
2 years ago
Other questions:
  • The Doppler effect is the change in
    15·2 answers
  • If the speed of a wave is 2.5 x 103 m/s and has a wavelength of 5.80 x 10-7m, what is its frequency?
    6·1 answer
  • Which force does not operate at a distance of 1 m?
    9·1 answer
  • A particle's trajectory is described by x =(12t3−2t2)m and y =(12t2−2t)m, where t is in s.
    9·2 answers
  • When the activation energy of an exothermic reaction decreases at a given temperature, the reaction rate increases because the _
    10·1 answer
  • A meter stick is free to rotate about an axis through one of its end. Find the force F needed to balance this meter stick if the
    5·1 answer
  • The velocity of a 1.3 kg block sliding down a frictionless inclined plane is found to be 1.26 m/s. 1.10 s later, it has a veloci
    7·1 answer
  • Which of the following conditions is not necessary to observe an interference pattern between two sets of waves?
    6·2 answers
  • How long a person exercises. The number of minutes of physical activity at one time is called?
    7·1 answer
  • Ice melts in your<br> glass of water. What method of heat transfer causes this?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!