(100 watts) = 100 joules/second
(100 joules/second) x (3,600sec/hour) = 360,000 joules/hour
360,000 joules = 360,000 newton-meters
Weight of 2,000 kg on Earth = (2,000 kg) x (9.8 m/s²) = 19,600 newtons
(360,000 newton-meters) / (19,600 newtons) = <em>18.4 meters off the ground</em>
Answer:
The first one is the right answer.
<h2>
Answer</h2>
<u>Density is the mass per unit volume</u>
<h2>
Explanation</h2>
Density is actually is the ratio of the mass of an object to its volume. It is used to compare the different objects on the basis of their weight. You can say that more the weight of an object more will be its density. For example, the density has the role in floating the ships on the water. When we insert the wooden piece inside water it pops up to the surface. The weight of the wood piece is more than the water and volume is greater which affects its density. When the object gets smaller the size on pressing, the density of the object increase.
since airplane is thrown towards west with speed 6 m/s
while air is blowing with speed 8 m/s towards north
so here the net speed of air plane will be the resultant of airplane speed and wind speed always
SO here we can say it would be a combination of vector along west with must be of length 6 m/s and other vector is towards north with is of length 8 m/s
so correct answer must be 1st option
