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
SOVA2 [1]
3 years ago
11

In which situation is a person doing work on an object?

Physics
2 answers:
Marianna [84]3 years ago
6 0

Answer : When a person applies force and covers distance then the person is doing work on an object.

inna [77]3 years ago
3 0

Answer :A human is working their muscles to do whatever activity they are doing.

Explanation:

You might be interested in
A 0.140-kg baseball is dropped from rest. It has a speed of 1.20 m/s just before it hits the ground, and it rebounds with an upw
irga5000 [103]

Answer:

22 N upward

Explanation:

From the question,

Applying newton's second law of motion

F = m(v-u)/t....................... Equation 1

Where F = Average force exerted by the ground on the ball, m = mass of the baseball, v = final velocity, u = initial velocity, t = time of contact

Note: Let upward be negative and downward be positive

Given: m = 0.14 kg, v = -1.00 m/s, u = 1.2 m/s, t = 0.014 s

Substitute into equation 1

F = 0.14(-1-1.2)/0.014

F = 0.14(-2.2)/0.014

F = 10(-2.2)

F = -22 N

Note the negative sign shows that the force act upward

6 0
3 years ago
Which of the materials would be able to scratch Quartz
Lelechka [254]
<span>anything harder than mohs scale 7 so eg Topaz, Corundum and diamond representing mohs scale 8 9 and 10 respectively.</span>
7 0
3 years ago
Which of the following is equal to Velocity change per second​
Mademuasel [1]

Acceleration

Explanation:

Acceleration is a physical quantity that expresses the change in the velocity of a body per unit of time.

  Acceleration = \frac{V - U }{T}

V is the initial velocity

U is the final velocity

T is the time

It is has a unit of m/s²

Learn more:

Acceleration brainly.com/question/3820012

#learnwithBrainly

8 0
3 years ago
What is the acceleration of a Porsche that can go from 15 mi/hr to 75 mi/hr in 4 seconds?
Elodia [21]

Hi there!

Acceleration = change in velocity / change in time = Δv/Δt

Thus:

a = (75 - 15)/4 = 60/4 = 15 mi/hr²

8 0
2 years ago
Read 2 more answers
3. (Solids, Liquids) have no definite shape, but definite volume.<br> A)Solids <br> B)Liquids
JulijaS [17]

Answer:

b liquids

Explanation:

this is because liquids take the shape of  their container while solids stay solid and do not change shape and solids, liquids and gases all have definite volume.

7 0
3 years ago
Other questions:
  • This is a compound made from a group of covalently bonded atoms.
    11·2 answers
  • Ions having equal charges but masses of M and 2M are accelerated through the same potential difference and then enter a uniform
    15·1 answer
  • b) The distance of the red supergiant Betelgeuse is approximately 427 light years. If it were to explode as a supernova, it woul
    13·1 answer
  • A right triangle has a hypotenuse of 37 and a leg of 10. What is the second leg of the triangle?
    6·1 answer
  • A bus travel with an average velocity of 60km/h. How long does it take to cover a distance of 500km​
    12·1 answer
  • On a sky coaster (human pendulum) that reaches 10 meters from it's equilibrium position, a man of 120 kg is able to reach a maxi
    8·1 answer
  • What is the Activation Energy for this reaction?
    13·2 answers
  • An American traveler in China carries a transformer to convert China's standard 220 V to 120 V so that she can use some small ap
    13·1 answer
  • The diagram shows the trajectory of a ball that
    5·1 answer
  • Rest and motion are relatives terms justify the statement​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!