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
Butoxors [25]
3 years ago
14

How much work is required to lift a 4kg object 3m high?

Physics
1 answer:
dybincka [34]3 years ago
5 0

Answer:

To lift the object it takes 117.6 N m of work.

Explanation:

Given data:

m = mass of the object = 4 kg

h = high = 3 m

Question: How much work, W = ?

The work:

W=Fh=mgh

Here

g = gravity = 9.8 m/s²

W=4*9.8*3=117.6Nm

You might be interested in
Help with both questions I’ll mark brainliest
creativ13 [48]

Answer:

gas, liquid, solid

sound cannot travel in space

5 0
3 years ago
Read 2 more answers
What is the kinetic energy when the pendulum is at the halfway point
bekas [8.4K]
The answer is 0 , hope this helps
8 0
4 years ago
A person tosses a ball from the ground up into the air at an initial speed of 10 m/sec and an initial angle of 43° off the groun
Artemon [7]
<h2>Component of the velocity of the ball in the horizontal direction just before the ball hits the ground = 7.31 m/s</h2>

Explanation:

In horizontal direction there is acceleration or deceleration for a ball tossed upward at an initial angle of 43° off the ground.

So the horizontal component of velocity always remains the same.

Horizontal component of velocity is the cosine component of velocity.

Initial velocity, u = 10 m/s

Angle, θ = 43°

Horizontal component of velocity = u cosθ

Horizontal component of velocity = 10 cos43

Horizontal component of velocity = 7.31 m/s

Since the horizontal velocity is unaffected, we have

     Component of the velocity of the ball in the horizontal direction just before the ball hits the ground = 7.31 m/s

5 0
4 years ago
Need some help with homework but where doing it in class rn
Brilliant_brown [7]

Answer:

now it lets me. B

Explanation:

hope that helps

6 0
3 years ago
If anyone don't mind answering-:
Dennis_Churaev [7]

Answer:

1. inference

2. analysis

others I don't have any idea sorry

5 0
3 years ago
Other questions:
  • Four soccer players are running down the field at the same speed. Player 1 weighs 145 lbs and is running toward the north goal,
    15·1 answer
  • Which statements about inertia and centripetal force are correct? Check all that apply. Inertia is always present. Inertia cause
    10·2 answers
  • State what causes tides on earth
    7·1 answer
  • The moment of inertia of a body is 3.0 kg x m^2. when its angular velocity is 6.0 rad/s, its rotational kinetic energy in j is
    11·1 answer
  • A possible explanation for a set of facts that can be tested by further investigation is called a blank
    12·2 answers
  • which of this is not example of simple machine? A) a crowbar,B)a knife,C)a bicycle,D)a wheelchair ramp
    11·1 answer
  • The width of the central maxima, formed from light of wavelength 575 nm behind a single slit that has a width of 115 μm, is 1.15
    15·1 answer
  • Which way does the Jet Stream blow across the United States? *
    15·1 answer
  • The displacement x of a particle varies with time t as x = 4t 2 -15t + 25. Find the position,
    7·1 answer
  • 6.1 Write down, in words, the principle of conservation of mechanical energy.​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!