Coal _____. is a renewable resource can easily be replenished is formed from plant remains is the least-polluting energy source

Answers

Answer 1

Answer:
Coal . . . . .

-- is a renewable resource that can easily be replenished.
It happens by itself, and you don't even need to do anything,
but it takes several million years.

-- Is formed from plant remains, and

-- is perhaps the MOST polluting energy source.

Answer 2

Answer:

There is only supposed to be one answer choice, so the correct answer is is formed from plant remains.

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In which type of wave do the particles in a medium move perpendicular to the direction that the wave moves? A.transverse waves B.ocean waves C.surface waves D.longitudinal waves
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What does viscosity describe? Question 4 options: A. a fluid's resistance to being heated
B. the rate of evaporation of a fluid
C. how much energy it takes to warm a fluid
D. the density of a fluid
E. a fluid's resistance to flowing

Answers

Answer:

E. a fluid's resistance to flowing

Explanation:

Viscosity, also known as "thickness" is a rheological property that describes a fluid's resistance to flowing, fluids of low viscosity, like water, flow more easily while high viscosity fluids, like mud, are harder to move through. It is an important property because it determines the energy required to make a certain fluid flow.

D. the density of a fluid

Which object has the least momentum? Object A: m = 1 kg, v = 100 m/s
Object B: m = 10 kg, v = 12 m/s
Object C: m = 0.5 kg, v = 1000 m/s
Object D: m = 100 kg, v = 2 m/s

Answers

the answer is c m= 0.5kg ....
that one

Nuclear energy use can negatively impact water quality. Please select the best answer from the choices provideda. True
b. False

Answers

The correct answer is B. Nuclear energy use do not have a negative impact on water quality. Although, it might have an effect on life in water bodies. Nuclear power generation requires a lot of water for cooling and heating. Many power plants are situated near bodies of water because this is where they get their water for processing. They use screens in order to minimize entry of foreign materials and in these screens aquatic organisms might be trapped and killed.

the correct answer is true.

A device has power -2 D . The device is a.A convex lens of focal length 50 cm
b.A concave lens of focal length 50 cm
c.A convex lens of focal length 2 m
d.A concave lens of focal length 2 m

Answers

Answer:

Explanation:

-vesign shows the lens is CONCAVE

f=1/power

You ran 400 meters in 2 minutes what is your speed

Answers

The speed of an object is the distance divided by the time of travel. The speed of the person running 400 meters in 2 minutes is 3.3 m/s.

What is speed?

Speed is a physical quantity used to measure the distance covered per unit time. Speed is a scalar quantity thus, having magnitude only. The rate of speed is called velocity. Velocity is a vector quantity.

Speed in physics is the ratio of the distance covered per unit time. Thus, speed can have the units m/s, Km/hr, ft/s miles/s etc. As the time of the travel increases, speed is said to be decreasing.

The distance covered = 400 meters.

time = 2 minutes = 2 × 60 s = 120 s

Speed = distance / time

= 400 m/ 120 s

= 3.3 m/s.

Therefore, the speed is 3.3 m/s.

To find more on speed, refer here:

brainly.com/question/7359669

#SPJ5

Answer:

3.3m/s

Explanation: