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
loris [4]
2 years ago
9

The gravitional energy of an object is always measured realative to the ?

Physics
2 answers:
mel-nik [20]2 years ago
6 0
Gravitational potential energy is

                       (mass) x (gravity) x (height) .

When you see this formula, you should be asking yourself:
"Self !  'Height' above WHAT ?

The answer to that question is:  It doesn't matter.  It can be the height
above anything, as long as you make very clear what the reference
(zero) level is, so that it doesn't change during the course of working
with the problem.

There is no particular level relative to which the gravitational potential
energy must always be measured.

In a large number of cases ... like when the problem involves something
going up and down hills, or roller coasters making loops, or soccer balls
or golf balls being launched ... the reference level for gravitational energy
is the ground, because it's THERE and it's convenient.

But if the action in the problem takes place in an office on the 80th floor
of the Aon building in Chicago, or down in a coal-mine shaft in Kentucky
where da sun don't shan, then the floor of the room you're in would be a
much wiser and more convenient level to adopt as the the zero-reference
level.

There's no law.
zaharov [31]2 years ago
4 0
I would say that the answer would be MASS.
You might be interested in
What was done to protect the ozone layer?
svp [43]

Answer:

a. Ban Freon, aerosol cans, and refrigerants

Explanation:

5 0
2 years ago
Scientists believe that Earth and the other planets formed _____.
Gnoma [55]
C. during the same time span and from the same material as the sun
5 0
3 years ago
Read 2 more answers
A screen is placed a distance dd to the right of an object. A converging lens with focal length ff is placed between the object
Elina [12.6K]

Answer:

2f

Explanation:

The formula for the object - image relationship of thin lens is given as;

1/s + 1/s' = 1/f

Where;

s is object distance from lens

s' is the image distance from the lens

f is the focal length of the lens

Total distance of the object and image from the lens is given as;

d = s + s'

We earlier said that; 1/s + 1/s' = 1/f

Making s' the subject, we have;

s' = sf/(s - f)

Since d = s + s'

Thus;

d = s + (sf/(s - f))

Expanding this, we have;

d = s²/(s - f)

The derivative of this with respect to d gives;

d(d(s))/ds = (2s/(s - f)) - s²/(s - f)²

Equating to zero, we have;

(2s/(s - f)) - s²/(s - f)² = 0

(2s/(s - f)) = s²/(s - f)²

Thus;

2s = s²/(s - f)

s² = 2s(s - f)

s² = 2s² - 2sf

2s² - s² = 2sf

s² = 2sf

s = 2f

8 0
3 years ago
I just want to shift to another country to learn like London so who can tell me the progress​
scoray [572]

Answer:

by shift do you mean travel

Explanation:

3 0
2 years ago
Martina seems to have several different personalities. In one, she is 7 years
melomori [17]

Answer:Dissociative Identity Disorder

Explanation:I don't say you have to mark my ans brainliest but my friend if it has really helped you don't forget to thank me...

3 0
3 years ago
Other questions:
  • Which two forms of energy does a hairdryer convert electric energy into? A.)chemical energy
    12·2 answers
  • According to Faraday, what is produced by a changing magnetic field?
    10·1 answer
  • A catapult launches a test rocket vertically upward from a well, giving the rocket an initial speed of 79.6 m/s at ground level.
    11·1 answer
  • The Nichrome wire is replaced by a wire of the same length and diameter, and same mobile electron density but with electron mobi
    7·2 answers
  • A car accelerates uniformly from rest to a speed of 7.6 m/s in 4.6 s. How far does the car travel in that time?
    13·1 answer
  • A river flows due east with a speed of 3.00 m/s relative to earth. The river is 80.0 m wide. A woman starts at the southern bank
    15·1 answer
  • Two cars collide at an icy intersection and stick together afterward. The first car has a mass of 1200 kg and was approaching at
    11·1 answer
  • Proponer un modelo donde se puedan poner en práctica los conceptos de voltaje y potencia.
    6·2 answers
  • Alcohol is being heated on the stove and distillates at 172.4⁰F . What is this temperature on the Celsius degree?
    10·1 answer
  • Newton’s second law of motion states that larger things need more force to move them than lighter things. What would be an examp
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!