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
Lostsunrise [7]
3 years ago
5

HURRY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Physics
1 answer:
Anastasy [175]3 years ago
5 0
Light energy from the sun I think thats the answer
You might be interested in
Biotic factors and abiotic factor temperature
ddd [48]
Biotic is the living factors while abiotic is nonliving such as a rock
5 0
2 years ago
Calculate the mass (in g) of 346 cm³ of polythene. The density of polythene is 0.95 g/cm³. Give your answer to 2 decimal places.
IceJOKER [234]

Answer:

M = 328.70g

Explanation:

From the given values:

V = 346 cm³

M of 1 cm³ of Polythene = 0.95g or 95/100g

Solve:

M = <u>(95×346)</u>

10

= <u>3</u><u>2</u><u>8</u><u>7</u><u>0</u>

100

M = 328.70g

8 0
2 years ago
If the rectangular barge is 3.0 m by 20.0 m and sits 0.70 m deep in the harbor, how deep will it sit in the river?
leva [86]

The harbour contains salt water while the river contains fresh water. So assuming that the densities of fresh water and salt water are:

density (salt water) = 1029 kg / m^3

density (fresh water) = 1000 kg / m^3

The amount of water (in mass) displaced by the barge should be equal in two waters.

mass displaced (salt water) = mass displaced (fresh water)

Since mass is also the product of density and volume, therefore:

<span>[density * volume]_salt water = [density * volume]_fresh water                 ---> 1</span>

 

First we calculate the amount of volume displaced in the harbour (salt water):

V = 3.0 m * 20.0 m * 0.70 m

V = 42 m^3 of salt water

Plugging in the values into equation 1:

1029 kg / m^3 * 42 m^3 = 1000 kg/m^3 * Volume fresh water

Volume fresh water displaced = 43.218 m^3

 

Therefore the depth of the barge in the river is:

43.218 m^3 = 3.0 m * 20.0 m * h

<span>h = 0.72 m        (ANSWER)</span>

8 0
3 years ago
The element carbon exists in several different forms. Pure carbon can be found in the form of diamonds, coal, and the graphite i
Artist 52 [7]
B is false.

not all carbon atoms have 6 neutrons. Carbon 13 for example has 7 neutrons
5 0
3 years ago
Read 2 more answers
If someone is whispering, but you cant hear them, how do you fix that problem?
Readme [11.4K]
The answer is C
Hope this helps!
6 0
3 years ago
Read 2 more answers
Other questions:
  • How can I change my Brainly username?
    5·2 answers
  • Which of the following is a TRUE statement about the differences between electromagnetic and mechanical waves?
    9·2 answers
  • An 73 cm long pendulum with a 0.80 kg bob is released from rest at an initial angle of θ0 with the vertical. at the bottom of th
    13·1 answer
  • A tugboat pulls a ship with a constant net horizontal force of 4.71 × 103 N and causes the ship to move through a harbor. How mu
    15·1 answer
  • S= 1/2(V f + V I )t solve for V f <br><br> show me how
    6·1 answer
  • one deterrent to burglary is to leave your front porch light on all the time if your fixture contains the 23 watt compact fluore
    6·1 answer
  • Calculate the refractive index for a substance where the angle of incidence is 300 , the angle of refraction is 600 , and the re
    5·1 answer
  • Wil-E-Coyote drops a bowling ball off a cliff to try to catch the Roadrunner. The cliff is 132m high. how far does it fall in th
    10·1 answer
  • What happens when an electrically charged balloon is placed close to an uncharged soda can?
    8·2 answers
  • What does the membrane in the cochlea do<br> what is the membranes function in the ear
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!