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
zhuklara [117]
3 years ago
12

When you lift an object, you add the energy of lifting to the object. Tor F

Physics
1 answer:
PtichkaEL [24]3 years ago
6 0

It's true, when we lift an object we add energy to it.

because, when we lift an object by applying force , the object attains a height and hence the energy gets stored in it, in the form gravitational potential energy .

You might be interested in
A barbel weighing 215N is raised to a height of 2.0 M above the ground. It is then dropped from that height.
aleksandrvk [35]

Answer:

  • 430 J
  • 6.26 m/s

Explanation:

A. The kinetic energy is the same as the initial potential energy:

  PE = mgh = (215 N)(2.0 M) = 430 J

__

B. The velocity achieved by falling from a height h is given by ...

  v = √(2gh)

  v =  √(2·9.8 m/s^2·2 m) = √(39.2 m^2/s^2)

  v ≈ 6.26 m/s

8 0
3 years ago
Suppose that the radius of the circular path is r when the speed of the rocket is v and the acceleration of the rocket has magni
SCORPION-xisa [38]

Answer:

A3

Explanation:

4 0
3 years ago
Aspirin is a compound composed of carbon, hydrogen, and oxygen atoms
vekshin1

Answer:

A homogeneous Mixture

Explanation:

The acid that contains the acetylsalicylic acid is a <u>mixture,</u> but it isnt a compound. though aspirin is. (hopefully this helps? qwq)

8 0
2 years ago
a 42.3 kg girl and a 7.93 kg sled are on the surface of a frozen lake, 15.0m apart and linked by a rope, but not moving yet. the
ycow [4]

Answer:

they meet from the girl's original position at: 2.37 (meters)

Explanation:

We need to use the Newton's law, exactly the second law that relate force, mass and acceleration as: F=m*a with this we can get both accelerations; solving for acceleration a=\frac{F}{m}. Now a_{girl}=\frac{5.76}{42.3}=0.14 (m/s^{2}) anda_{sled}=\frac{5.76}{7.93}=0.73(m/s^{2}). Then knowing that they both travel at the same time and assuming that the distance among the girl and the sled is: 15.0-x, so, x=\frac{1}{2}*a_{girl}*t^{2} and15.0-x=\frac{1}{2}*a_{sled}*t^{2}, solving for the time we get:t=\sqrt{\frac{2x}{a_{girl} } } and t=\sqrt{\frac{2*(15.0-x)}{a_{sled} } } with this equations we solving for the x that is the distance between the girl and the sled after the apply the force and we get:\sqrt{\frac{2x}{a_{girl}}} = \sqrt{\frac{2*(15.0-x)}{a_{sled} }. Finally we get:\frac{x}{a_{girl} }=\frac{(15.0-x)}{a_{sled} } and replacing the values we have got:\frac{x}{0.14} =\frac{(15.0-x)}{0.73} so 5.33*x=15-x so x=2.37 (meters).

5 0
3 years ago
If the net force acting on an object is 0 N, you can be sure thr forces acting on the object are,
Bas_tet [7]

Answer:

A. Balanced

Explanation:

7 0
3 years ago
Other questions:
  • How do you answer this. Need help ASAP. Offering 20 points !!!
    12·1 answer
  • Define the problem. Look around your house or outside. Is there anything that you're wondering about or have questions about?
    11·1 answer
  • Why do solar eclipses move from west to east?
    11·1 answer
  • a circuit contains 2 ohm and 4 ohm resistors connected in parallel, find the total resistance &amp; the amount of current in eac
    8·1 answer
  • A small segment of wire contains 10 nC of charge. The segment is shrunk to one-third of its original length. A proton is very fa
    10·1 answer
  • On the EM spectrum, visible light is found between
    14·2 answers
  • Object A is negatively Charged. object A and Object B attract. Object B and Object C repel. Object C and Object D attract. What
    8·1 answer
  • Memories
    11·1 answer
  • Which one is it? Chemical, or ,Mechanical<br><br><br> Flakes of brick fall off due to wind and rain.
    5·2 answers
  • If a body has a velocity 50 m s-1
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!