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
LekaFEV [45]
3 years ago
11

A 0.45kg baseball is pitched towards home plate at 20 m/s. The ball is hit back towards the pitcher with a speed of 30 m/s. What

is the change in momentum of the baseball?
Physics
1 answer:
Inessa05 [86]3 years ago
3 0

Answer:

4.5kgm/s

Explanation:

Change in momentum is expressed as

Change in momentum = m(v-u)

M is the mass

V is the final velocity

u is the initial velocity

Given

m=0.45kg

v = 30m/s

u = 20m/s

Substitute

Change in momentum = 0.45(30-20)

Change in momentum = 0.45×10

Change in momentum = 4.5kgm/s

You might be interested in
A 2.0-kg object moving at 5.0 m/s encounters a 30-Newton restive force
sveta [45]

The impulse experienced by the object is 3 N s.

<u>Explanation:</u>

Impulse is also termed as change in the momentum of the object. So, it is directly proportional to the force acting on the object and the time for which the force is acting on that object.

Thus, impulse experienced by an object is the product of force acting on the object for a given time period. So, it is the sudden influence of force on the given volume.

As the force is given as 30 N and the duration or the time is given as 0.1 seconds. Then, the impulse will be product of force with duration.

Impulse = Force × ΔTime = Force × Duration

Impulse = 30 × 0.1 = 3 N s.

Thus, the impulse experienced by the object is 3 N s.

6 0
3 years ago
an object of mass 20kg is lifted to a 25m building. how much potential energy is stored on a mass?(take g=10m/s²)​
Goshia [24]

Answer:

The answer is 5000 Joules

4 0
3 years ago
Could a sea breeze occur at night? Explain why or why not.
Llana [10]
No sea breeze can not occur at night because while sea breezes occur during the day, land breezes occur at night. Despite the difference in times at which the land breezes and sea breezes occur, the reason for the land breeze's formation is basically the same as the sea breeze, but the role of the ocean and land is reversed.
Hope this helps ✌️
6 0
2 years ago
Question 19 (Multiple Choice Worth 3 points) A mirror will reflect
Jobisdone [24]
So far, all we have is a very short true statement. If it's a multiple choice question, then where are they ?
4 0
3 years ago
Dominic made the table below to organize his notes about mixtures. What mistake did Dominic make? The title should read “Propert
Alex17521 [72]

D.........................

8 0
3 years ago
Read 2 more answers
Other questions:
  • A star has a spectrum with lines indicating the presence of ionized helium. This star should be classified as a(n) _____ type st
    9·2 answers
  • Monochromatic light with a wavelength of 384 nm passes through a single slit and falls on a screen 86 cm away. If the distance o
    12·1 answer
  • The velocity of sound on a particular day outside is 331 meters/second. What is the frequency of a tone if it has a wavelength o
    14·1 answer
  • What is the average acceleration of a car that goes from rest to 60 km/h in 8 seconds?  Be sure to show all work to support your
    12·2 answers
  • How does changing your center of gravity affect the way you balance?
    13·1 answer
  • Which of the following statements about the Coriolis effect is correct?
    15·1 answer
  • A train is moving at a speed of 50 km/h. How many hours will it take thetrain to travel 600 kilometers
    11·1 answer
  • A 3.00-kg ball swings rapidly in a complete vertical circle of radius 2.00 m by a light string that is fixed at one end. The bal
    5·1 answer
  • Is Algae Biotic or Abiotic?
    9·2 answers
  • Metal workers and theory causes of accident<br>​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!