A wave with a period of 1/3 second has a frequency of

Answers

Answer 1

Answer: The frequency of the wave is 3hz

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Fossil fuels currently account for the majority of the world’s energy use because they are A. distributed evenly throughout the world. B. nonpolluting. C. renewable energy resources. D. relatively inexpensive and readily available

Answers

Answer: D. relatively inexpensive and readily available

Fossil fuels are non-renewable sources of energy these resources formed by the geological processes occurring in the earth. It takes millions of years for their formation. These includes coal, petroleum, and natural gas. Unfortunately, the distribution of these resources is not even in the regions of the world but efforts have been done by the humans to make them available everywhere. They are relatively inexpensive and readily available this contributes to the majority of the world's energy use.

Fossil fuels currently account for the majority of the world’s energy use because they are relatively inexpensive and readily available.

In short, Your Answer would be Option D

Hope this helps!

State the law of universal gravitation, and use examples to explain how changes in mass and changes in distance affect gravitational force.

Answers

F(g)= Gm1m2/ r^2 If mass is increased, so will the force of gravity because it is in direct relationship with the gravitational force, but if distance is increased, the force of gravity will decrease because it is indirectly related ( since it is on the bottom of the equation)

a wagon weighing 1800 newtons is pulled by a horse at a speed of 0.40 m/sec. what is the power of this horse?

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Power is equal to (Newtons x meters)/time, also known as the following equation...

P = Fd/t

Your force is 1800Newtons and your velocity is 0.4m/s
Velocity is equal to distance/time, also known as the following equation...

v = d/t

So your equation is basically P = Fv

P = 1800N x 0.4m/s

P = 720 Watts

How much net force is needed to accelerate a 15 kg mass at 2.8 m/s^2

Answers

Refer to the 2th Law of Newton

F = m. a

F = 15 x 2.8 = 42 N

In deeper ocean water, temperature decreases and pressure increases. t/f

Answers

Answer:

It is false.

Explanation:

As the depth of water increases, the pressure also increases.

According to the formula

$P = h * d * g$

Where, h is the depth of water, d is the density of water and g be the acceleration due to gravity

As h increases, pressure also increases.

As depth increases, the temperature of the water also increases, because of geothermic energy of earth.

So, as depth increases, pressure and temperature both increases.

T. this is the reason we haven't reached the deepest part of the Mariana Trench. the pressure is just too much

Within an internal combustion engine, the can-shaped component that moves up and down the cylinder and is the main moving part in the engine is theA. connecting rod.
B. piston.
C. spark plug.
D. crankshaft.

Answers

Piston is the part in the combustion engine which moves up and down. Piston is connected in connecting rod which helps to move it.
Spark plugs are used to produce spark.

So the answer is B. Piston

Hope I Helped You!!! :-)

Have A Great Day!!!

Piston is the part in the combustion engine which moves up and down.
So your answer is B.

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