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
A movie stunt performer is filming a scene where he swings across a river on a vine. The safety crew must use a vine with enough
Julli [10]

Answer:

1125.66956 N

Explanation:

m = Mass of stunt performer

g = Acceleration due to gravity = 9.81 m/s²

v = Velocity of the swing = 7 m/s

T = Tension

r = Radius of the swing = Length of vine = 11.5 m

From the free body diagram

T-mg-m\frac{v^2}{r}=0\\\Rightarrow T=mg+m\frac{v^2}{r}\\\Rightarrow T=m(g+\frac{v^2}{r})\\\Rightarrow T=80(9.81+\frac{7^2}{11.5})\\\Rightarrow T=1125.66956\ N

The minimum tension force the vine must be able to support without breaking is 1125.66956 N

7 0
3 years ago
A spinning top initially spins at 16rad/s but slows down to 12rad/s in 18s, due to friction. If the rotational inertia of the to
Alex Ar [27]

Answer:

The  change  in angular momentum is \Delta  L  = 0.0016 \ kgm^2/s

Explanation:

From the question we are told that

      The initial angular velocity of the spinning top is  w_1  =  16 \ rad/s

      The angular velocity after it slow down is  w_2 =  12 \ rad/s

      The time  for it to slow down is  t =  18 \ s

       The rotational inertia due to friction is  I =  0.0004 \ kg \cdot m^2

 Generally the change in the angular momentum is  mathematically represented as  

         \Delta  L  =  I  *(w_1 -w_2)

substituting values  

        \Delta  L  =  0.0004  *(16 -12)

       \Delta  L  = 0.0016 \ kgm^2/s

5 0
3 years ago
An electromagnetic wave is a kind of a wave which,
Harman [31]

Explanation:

Electromagnetic waves are waves that propagate through space while an electric field and a magnetic field interact with each other.

please mark as brainliest plzz

7 0
3 years ago
Read 2 more answers
Which will be attracted to (or repelled by) a magnet ?
Dima020 [189]
I believe it’s A C F
4 0
3 years ago
Read 2 more answers
Which of the following best describes the role of culture in the achievement of developmental milestones?
Andrei [34K]

Answer:

Children achieve development milestones at the same time regardless of culture

Explanation:

7 0
3 years ago
Other questions:
  • The atoms that make up a star can be determined by
    7·1 answer
  • Name some elements that have a symbol that is entirely different from the spelling of the world
    15·1 answer
  • What would happen to the two balls if one of them were kept positively charged and the charge on the other ball were slowly incr
    13·1 answer
  • Which example identifies a change in motion that produces acceleration? choices are: 1. a speed skater moving at a constant spee
    14·2 answers
  • A runner runs the 100 meter dash in 16.6 seconds. What is their average speed? (in meters per second) SOMEBODY PLEASE HELP ME!!!
    7·1 answer
  • In a certain chemical process, a lab technician supplies 292 J of heat to a system. At the same time, 68.0 J of work are done on
    12·1 answer
  • How do you calculate the potential energy by it's height and weight? and is there any other way to solve it?​
    13·1 answer
  • Chemical reactions provide support for the law of conservation of matter because which of the following is true about the atoms
    10·1 answer
  • A 6.0 kg metal ball moving at 4.0 m/s hits a 6.0 kg ball of putty at rest and sticks to it. The two go on at 2.0 m/s.
    12·1 answer
  • The centripetal force is proportional to the _____. mass velocity squared inverse of the radius All of the above
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!