It occur when is lightning.
Answer:
Differences between freefall and weightlessness are as follows:
<h3>
<u>Freefall</u></h3>
- When a body falls only under the influence of gravity, it is called free fall.
- Freefall is not possible in absence of gravity.
- A body falling in a vacuum is an example of free fall.
<h3>
<u>Weightlessness</u></h3>
- Weightlessness is a condition at which the apparent weight of body becomes zero.
- Weightlessness is possible in absence of gravity.
- A man in a free falling lift is an example of weightlessness.
Hope this helps....
Good luck on your assignment....
Because for example a lightning bolt is an electromagnetic wave. Lighting bolts can hurt you or even kill you. But others waves cant harm you.
Hope this helps
Answer:
h = 6.371 m
Explanation:
Data:
Potential Energy = P.E = 1500 J
Mass = m = 24 Kg
Gravity = g = 9.81 m/sec²
Height = h = ?
Solution:
As the formula for the Potential Energy is;
P.E = mgh
Replacing the values in the above equation
1500 = 24 × 9.81 × h
h = (1500)÷(24 × 9.81)
h = 6.371 m
Answer:
4.34 mi at 
north of east
Explanation:
The displacement of an object in motion is a vector connecting its initial position to the final position of motion.
In this problem, the man has 2 different motions:
- 3.50 mi due east
- 2.57 mi due north
We can take the east direction as positive x-direction and north as positive y-direction, so these two motions can be written as:
Since the two motions are perpendicular to each other, the resultant displacement can be found by using Pythagorean's theorem; therefore:
We can also find the direction using the equation:
And therefore,
