Answer: 0.14 Hz
Explanation:
We are told the person counts 10 waves in 68 s, from this information we can calculate the frequency , which is defined as the number of oscilations or waves per unit of time. Then:
This is the frequency of the ocean waves. Now, according to the International System of Units (SI), frequency is measured in Hertz (), which is equivalent to .
So, according to this, the frequency of the ocean waves is
Answer:
figure c
Explanation:
a neutral body has the same number of charge that's the negatives and positive charges are equal.
E. Acceleration is the answer
The answer would be:
<span>It's rate of gaining speed decreases.
The rate at which speed changes is called acceleration,
You can think of this problem as an inclined plane. But the angle of an inclined plane is constantly decreasing.
We know that on a frictionless inclined plane acceleration of an object is:
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<span>Where g is the gravitational acceleration of the Earth and
is the angle of an inclined plane.
Using our analogy, the ball would start on an inclined plane with a 90-degree angle and that angle would continue to decrease to zero.
The sine function is 1 at 90 degrees and is equal to zero at 0 degrees. Since our acceleration is proportional to the sine, and sine function is decreasing with the angle, our acceleration is also decreasing.
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Answer: Green house effect is the process affected by the absorption of the thermal energy from the sun.
Explanation:
Green house effect is the process in which the thermal energy is received from the sun. This thermal energy warms the earth's surface. Some sun's energy reaches the Earth's atmosphere and some are reflected to the space. The rest is mostly absorbed by the water vapor and carbon dioxide and some are re-radiated by the green house gases.
This effects maintains the earth's temperature.
Therefore, green house effect is the process affected by the absorption of the thermal energy from the sun.