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Mrrafil [7]
3 years ago
8

Which energy source is formed when organic matter is trapped underground without exposure to air or moisture?. . A. natural gas.

B. coal. C. oil. D. biomass fuels
Physics
1 answer:
nikklg [1K]3 years ago
8 0

Answer:

The correct answer is option B. coal

Explanation:

Coal is made of remains of organic material including trees and other vegetation which got trapped beneath the earth’s surface or at the bottom of the swamps. After burial below the ground the organic material was acted upon by the high temperature and pressure in the absence of air to form peat. Peat after further processing for a longer period of time converted into coal

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What name is given to a fuel made from living organisms or their waste??
Anni [7]
The name given to a fuel made from living organisms or their waste is a fossil fuel. Fossil fuels, in the form of oil and coal, have been utilised by mankind for approximately 100 years in order to produce energy. Today, there is a shift to more renewable energy sources such as solar, wind or wave power. 
3 0
3 years ago
Choose all the answers that apply. Which of the following forces require physical contact? tension, air resistance, friction, ma
svet-max [94.6K]

Answer:

I belive it would be friction applied force and tension

Explanation:

8 0
4 years ago
A ball is thrown straight down with a speed of Va2.00 from a building 40.00 meters high. How much S time passes before the ball
-Dominant- [34]

Answer:

Option C is the correct answer.

Explanation:

Considering vertical motion of ball:-

Initial velocity, u =  2 m/s

Acceleration , a = 9.81 m/s²

Displacement, s = 40 m

We have equation of motion s= ut + 0.5 at²

Substituting

   s= ut + 0.5 at²

    40 = 2 x t + 0.5 x 9.81 x t²

   4.9t²  + 2t - 40 = 0

   t = 2.66 s   or t = -3.06 s

So, time is 2.66 s.

Option C is the correct answer.

6 0
3 years ago
A 42 N net force is applied to a box which slides horizontally across a floor for 9.0
Rufina [12.5K]

Answer:

The Amount of work is done on the box by the net force is 378 Joules.

Explanation:

Given:

A 42 N net force is applied to a box which slides horizontally across a floor.

Force = 42 N

Force applied for a displacement of 9.0 m

Displacement = 9.0 m

To Find:

Amount of work is done on the box by the net force = ?

i.e Work = ?

Solution:

When a force causes a object to move, work is being done on the object by the force. Work is the measure of energy transfer when a force (F) moves an object through a distance (d).

Formula is given by

Work=Force\times Displacement

Substituting the given values we get

∴ Work = 42 × 9.0

∴ Work = 378 N-m

or

∴ Work = 378 Joules

The Amount of work is done on the box by the net force is 378 Joules.

8 0
4 years ago
Two identical space probes are orbiting Jupiter. Scientists determine that one of the space probes has a larger gravitational fo
galina1969 [7]

If the probes are identical, then the one that feels a larger gravitational
force is orbiting closer to Jupiter than the other one is.

If they're not identical, then the one with greater mass will feel more
gravitational force than the one with less mass, even if they're both
the same distance from Jupiter.  (We know this from the experimental
observation that fatter people weigh more, even on Earth.)
6 0
3 years ago
Read 2 more answers
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