Answer:
80 Watts
Explanation:
-> Work = Power/Time
-> W = P/t
-> 20 = P/4
-> P = 20*4
-> P = 80 Watts
Answer : The time required is, 16.1 minutes.
Explanation :
First we have to calculate the amount of heat required to increase the temperature is:
where,
Q = amount of heat required = ?
m = mass
= density of air =
V = volume of air
C = specific heat of air =
= change in temperature =
Now put all the given values in above formula, we get:
Now we have to calculate the time required.
Formula used :
where,
t = time required = ?
Q = amount of heat required =
P = power = 1500 W
Now put all the given values in above formula, we get:
Thus, the time required is, 16.1 minutes.
If an air parcel is given a small push upward and it falls back to its original position, the atmosphere is said to be Stable.
A Stable atmospheric condition is a state where a body thrown like an parcel tends to return to its original position where it was present earlier even after being disturbed externally.
Stable conditions tends to oppose the forces that lead to the displacement of the object from original position.
When a parcel is given a small push upward and it falls back to its original position in air. This shows Stability in the atmosphere which bring back the sir parcel where it was present initially.
A body under the action of gravity in case of stable equilibrium conditions shows returning back of the body after sometime on reaching a certain height.
Learn more about Gravity here, brainly.com/question/4014727
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Answer:
Range.
Explanation:
Range in projectile motion can be defined as the horizontal distance traveled by an object.
An example of range would be the horizontal distance a soccer ball moves between being kicked and touching the ground again.