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
kupik [55]
3 years ago
6

3. Read this sentence from the text: "Most of the solar radiation is absorbed by the atmosphere

Physics
1 answer:
Semmy [17]3 years ago
6 0
I think the answer is A
You might be interested in
2) A 0.4kg ball moves in horizontal circle of radius 3 m at speed of 100m/s. What
sweet-ann [11.9K]

Answer:

F = 1300 N

Explanation:

F = mv²/R = 0.4(100²)/3 = 1333.3333...

6 0
2 years ago
How often is water added to the Earth system?
rosijanka [135]
<span>Water is never added to earth system. Water forever remains in the water cycle on earth, so it goes from the ground, to the air, to the rain, to the sea, and round and round continuously. This cycle means that there does not need to be new water added to the earth, because it recycles any water that already exists of its own accord.</span>
4 0
3 years ago
If the timber weighs 670 N, calculate its angle of inclination when the water surface is 2.1 m above the pivot. Above what depth
Ymorist [56]

Answer:

Q = 40.1 degrees

Explanation:

Given:

- The weight of the timber W = 670 N

- Water surface level from pivot y = 2.1 m

- The specific density of water Y = 9810 N / m^3

- Dimension of timber = (0.15 x 0.15 x 0.0036) m

Find:

- The angle of inclination Q that the timber makes with the horizontal.

Solution:

- Calculate the Flamboyant Force F_b acting upwards at a distance x along the timber, which is unknown:

                                   F_b = Y * V_timber

                                   F_b = 9810*0.15*0.15*x

                                   F_b = 226.7*x N

- Take static equilibrium conditions for the timber, and take moments about the pivot:

                                   (M)_p = 0

                                   W*0.5*3.6*cos(Q) - x/2 * F_b*cos(Q) = 0

- Plug values in:

                                   670*0.5*3.6 - x^2 * 0.5*226.7 = 0

                                   x^2 = 1206 / 113.35

                                   x = 3.26 m

- Now use the value of x and vertical height y to compute the angle of inclination to be:

                                   sin(Q) = y / x

                                   sin(Q) = 2.1 / 3.26

                                   Q = sin^-1 (0.6441718)

                                   Q = 40.1 degrees

5 0
3 years ago
How are electrical signals transmitted over long distances?
forsale [732]

Answer:

Over such small distances, digital data may be transmitted as direct, two-level electrical signals over simple copper conductors. This results from the electrical distortion of signals traveling through long conductors, and from noise added to the signal as it propagates through a transmission medium.

4 0
3 years ago
A weight lifter does 586 J of work on a weight that he lifts in 3.5 seconds. What is the power with which he lifts the weight?
Neko [114]

Answer:

Explanation:

The quantity of energy transferred by a force when it is applied to a body and causes that body to move in the direction of the force work.

7 0
2 years ago
Other questions:
  • Describe the basis concept of the atwood’s machine
    11·1 answer
  • 1 . A farmer moves along the boundary of his rectangular field of side 10m x 20m . farmer covers 1m in 1sec . what will be the m
    8·1 answer
  • a car climbs 10.0 kilometers up a hill that inclines 8.0 degrees. what is the car's vertical displacement.
    10·1 answer
  • What is the Law of Conservation of Mass and Energy. Fist answer gets brainliest!!←←←←
    14·2 answers
  • Click on the reset button, and stack one 50kg. crate on top of the other, so that the total mass is 100kg. The Friction should b
    7·1 answer
  • How does a Freebody diagram tell you about the net force an object?
    9·1 answer
  • One speed skater starts across a frozen lake at an average speed of 8 m/s. Ten seconds later, a second speed skater starts from
    9·1 answer
  • Young's experiment is performed with light of wavelength 502 nm from excited helium atoms. Fringes are measured carefully on a s
    6·1 answer
  • (GIVING BRAINLIST)
    15·1 answer
  • Combined resistance of two resistors connected in parallel is 6Ω. One of the resistance is 12Ω . What will be the resistance of
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!