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
Aneli [31]
2 years ago
7

How do you calculate the work done when lifting an object?

Physics
1 answer:
vichka [17]2 years ago
5 0
Mass x Gravity x Height
You might be interested in
Two balls, each with a mass of 0.890 kg, exert a gravitational force of 8.06 × 10−11 n on each other. how far apart are the ball
Bond [772]
This problem involves Newton's universal law of gravitation and the equation to follow would be.

F = GM₁M₂/r²  

Given: M₁ = 0.890 Kg;  M₂ = 0.890 Kg;  F = 8.06 x 10⁻¹¹ N; G = 6.673 X 10⁻¹¹ N m²/Kg²

Solving for distance r = ?

r = √GM₁M₂/F

r = √(6.673 x 10⁻¹¹ N m₂/Kg²)(0.890 Kg)(0.890 Kg)/ 8.06 x 10⁻¹¹ N

r = 0.81 m 
6 0
3 years ago
Which of the following describes the effect of a convex mirror on light rays?
natulia [17]
B. It reflects light rays outward.

A convex mirror looks like this ⊂.  So when light rays hit the outward curves, it bends the light rays outwards, and backwards,  and it would appear to be coming from its center called the focus.

3 0
3 years ago
A mass m = 14 kg is pulled along a horizontal floor with NO friction for a distance d =5.7 m. Then the mass is pulled up an incl
frosja888 [35]

Answer:

W ≅ 292.97 J

Explanation:

1)What is the work done by tension before the block goes up the incline? (On the horizontal surface.)

Workdone by the tension before the block goes up the incline on the horizontal surface can be calculated using the expression;

W = (Fcosθ)d

Given that:

Tension of the force = 62 N

angle of incline θ =  34°

distance d =5.7 m.

Then;

W = 62 × cos(34) × 5.7

W = 353.4 cos(34)

W = 353.4 × 0.8290

W = 292.9686 J

W ≅ 292.97 J

Hence,  the work done by tension before the block goes up the incline = 292.97 J

8 0
2 years ago
Elliptical galaxies are frequently found a) Inside the Milky Way b) In galaxy clusters c) In the Galactic bulge d) In the Local
sergejj [24]

Answer:

The correct option is b) In galaxy clusters

Explanation:

A type of galaxy that appear elliptical in shape and have an almost featureless and smooth image is known as the elliptical galaxy.

An elliptical galaxy is three dimensional and consists of more than one hundred trillion stars which are present in random orbits around the centre.

Elliptical galaxy is generally found in the galaxy clusters.

5 0
3 years ago
Is an example of a physical process that a physical geographer would study.
diamong [38]
D. The environment
Is the right answer
8 0
2 years ago
Other questions:
  • All chemical reactions occur at the same rate true or false​
    15·2 answers
  • Suppose you were to fill a balloon with air then let go of it withoutntying it closed. What causes the balloon to fly away?
    7·2 answers
  • How do you calculate the acceleration of an object moving in a straight line
    10·1 answer
  • 4.<br> What distance would a car travel after 4 hours travelling at 60mph?
    8·2 answers
  • Which can you do to reduce the power consumption in your home?
    10·2 answers
  • For each scenario below, choose the best graph.<br> (a) Maria bikes from home to work.
    13·1 answer
  • An initially stationary object experiences an acceleration of 6 m/s2 for a time of 15 s. How far will it travel during that time
    9·1 answer
  • a boat sailing against the current experiences an acceleration of -11 m/s^2 if the boats initial velocity is 44 m/s upstream, ho
    8·1 answer
  • How did Edwin Hubble's discovery that the Andromeda Nebula was at least 1 million light years away change scientists' view of th
    6·1 answer
  • What conclusions can you draw about how objects can exert forces on each other even when they are not in contact? write an evide
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!