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
AURORKA [14]
3 years ago
15

The law of conservation of momentum states that...

Physics
1 answer:
Brums [2.3K]3 years ago
4 0

Answer:

The momentum before is equal to the momentum after

Explanation:

It is equal and should level out in an equation.

You might be interested in
A toy cannon uses a spring to project a 5.24-g soft rubber ball. The spring is originally compressed by 5.01 cm and has a force
salantis [7]

Answer:

Speed will be equal to 1.40 m/sec

Explanation:

Mass of the rubber ball m = 5.24 kg = 0.00524 kg

Spring is compressed by 5.01 cm

So x = 5.01 cm = 0.0501 m

Spring constant k = 8.08 N/m

Frictional force f = 0.031 N

Distance moved by ball d = 15.8 cm = 0.158 m

Energy gained by spring

KE=\frac{1}{2}kx^2=\frac{1}{2}\times 8.08\times 0.0501^2=0.0101J

Energy lost due to friction

W=Fd=0.031\times 0.158=0.0048J

So remained energy to move the ball = 0.0101 - 0.0048 = 0.0052 J

This energy will be kinetic energy

\frac{1}{2}mv^2=0.0052

\frac{1}{2}\times 0.00524\times v^2=0.0052

v = 1.40 m/sec

7 0
3 years ago
What exerts a centripetal force on a person running around a curve?
Eduardwww [97]

Answer:

The inertial force of the body

Explanation:

Everybody that is moving in a curved path has an inertial force called centrifugal force.

The counterforce of the centrifugal force is called the centripetal force. It also acts on every rotating body.

This force is always directed towards the center of the origin of the curve.

The velocity of the object changes its direction and magnitude at any instant of time. But the speed and angular velocity of the object remains the same for uniform circular motion.

So, according to the Newtonian mechanics, it is the inertial force of the body responsible for the centripetal force.

5 0
3 years ago
As light from a star spreads out and weakens, do gaps form between the photons?
Sati [7]

Answer:

There are no gaps in space between the photons as they travel.

Yes, you can form the shadow of a fire

Explanation:

8 0
2 years ago
Read 2 more answers
Please help me :Find the resultant of two forces of 1.5N and 2.0N at 90 degrees to each other, with the 1.5N force acting vertic
Roman55 [17]

Answer:

resultant force = (f1²+f2²)½

=(1.5²+2²)½

=(2.25+4)½

=(6.25)½

=2.5

Explanation:

okay this question seems easy. now if the 1.5 is vertically upwards so is that 2 is horizontally downwards hence as u say its 90 degrees thn it forms a right angled triangle.

4 0
3 years ago
Write any three reasons to separate the mixtures?​
dmitriy555 [2]

Answer:

people separate mixtures in order to ger a specific substance that they need. 2. the other thing people separate mixtures to remove the unrequired components. 3.To get a pure substance

Explanation:

hope this helps probably don't because you asked this a week ago but have a good day :) ❤

5 0
3 years ago
Other questions:
  • When a certain element is excited with electricity, we see three main lines in its emission spectrum: two red lines and one oran
    9·1 answer
  • 7th grade science urgent! begging for help! if you have a voltage of 120 volts entering your house and a lightbulb with 0.75 amp
    11·1 answer
  • How are red dwarf stars and yellow dwarf stars alike?
    10·1 answer
  • It is impossible to destroy __________.
    11·2 answers
  • Consider two circular metal wire loops each carrying the same current I as shown below. In what region(s) could the net magnetic
    10·1 answer
  • Sound waves are described as a.) mechanical and transverse b.) mechanical and longitudinal c.) electromagnetic and transverse or
    15·1 answer
  • Two marbles, one twice as massive as the other, are dropped from the same height. When they strike the ground, how does the kine
    7·1 answer
  • How much work in joules is required to lift a 23 kg box up from the ground to your waist that is 1.0 meters high, carry it 6 met
    11·1 answer
  • What does increasing the impulse on an object due to its momentum?
    8·1 answer
  • what is the thickness of the central portion of a thin conveying lens can be determined very accurately by using (a) vernier cal
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!