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
madreJ [45]
3 years ago
12

Calculate the gravitational potential energy of a body of mass 40 kg at a vertical height of 10 m. ( g = 9.8 m/s2)

Physics
1 answer:
olganol [36]3 years ago
8 0
Ep= mgh
Ep = 40 x 9.8 x 10
Ep = 3920J
Ep = 3900J (2sf)
You might be interested in
An atom is.......Help?
Dmitry_Shevchenko [17]
The smallest level of ordination in living things. Every living thing is made up of atoms. Atoms are made up of protons, neutrons, and electrons.
5 0
2 years ago
50 point!! Will mark brainliest!! (Please help)
jok3333 [9.3K]

What is the variable?

~<em>the</em><em> </em><em>price</em><em> </em><em>is</em><em> </em><em>the</em><em> </em><em>variable</em><em>.</em>

What happens to demand?

~It'll go down. Since the price of snow blowers will increase then the quantity demanded will go down.

Hope this helps- have a good day bro cya)

4 0
2 years ago
Read 2 more answers
Light is incident on the left face of an isosceles prism; with an apex angle of 49o, such that the light exiting the right face
Sunny_sXe [5.5K]

Answer:

\mu = 1.645

Explanation:

By Snell's law we know at the left surface

\theta_i = 19^o

\theta_r = ?

\mu_1 = 1

\mu_2 = \mu

now we have

1 sin19 = \mu sin\theta_r

0.33 = \mu sin\theta_r

now on the other surface we know that

angle of incidence = \theta_r'

\theta_e = 90

so again we have

\mu sin\theta_r' = 1 sin90

so we have

\theta_r = sin^{-1}\frac{0.33}{\mu}

\theta_r' = sin^{-1}\frac{1}{\mu}

also we know that

\theta_r + \theta_r' = 49

sin^{-1}\frac{0.33}{\mu} + sin^{-1}\frac{1}{\mu} = 49

By solving above equation we have

\mu = 1.645

3 0
3 years ago
Read 2 more answers
To get an accurate data reading, scientists must be sure to
joja [24]
D.
 Always use the right tool to get accurate measurements

8 0
3 years ago
Select the correct answer
DiKsa [7]

Answer:

C or 3

Explanation:

A: no they are called sources of sound. A is incorrect.

B: It does. Many people attest to this. But this is not a property of physics.

C: A media is required is the correct answer.

D: Dogs might. In general we don't.

I would pick C

7 0
2 years ago
Other questions:
  • A sample of oxygen occupies 560. ml when the pressure is 800.00 mm hg. at constant temperature, what volume does the gas occupy
    9·1 answer
  • Electronic signals that pulse current in a series of ones and zeros are known as
    10·1 answer
  • Under what conditions is the conservation of momentum applicable
    7·1 answer
  • What is an example of a conceptual model in science?
    14·2 answers
  • An object is acted upon by a force of 22 newtons to the right and a force of 13 newtons to the left. What is the magnitude and d
    12·2 answers
  • A relatively small impact crater 20 kilometers in diameter could be made by a comet 2 kilometers in diameter traveling at 25 km/
    12·1 answer
  • A ball with an initial velocity of 25 m/s is subject to an acceleration of -9.8m/s^2 how high does it go before coming to a mome
    8·1 answer
  • explain how a roller coaster functions using gravity and momentum. Why does it not need an engine or a motor to speed it up and
    9·2 answers
  • A bodybis thrown vertically upward with velocity of 30m/s calculate the the maximum height attained​
    9·2 answers
  • The very strong source of radio waves at the center of our galaxy is called.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!