It is a natural adaptation during winter (possibly due to the cold) that they lose their leaves to conserve water....
hope this helps:)
This is reactivity. It describes how easily one substance reacts with another
Answer:
Explanation:
Given
Distance to the planet = 35 light years. So, the entire distance is: 2 * 35 = 70.
i.e time of travel of the ship.
For the observer on earth, the time is:
The required speed so that it does not take more than 70 years is then calculated using:
Substitute
So, we have:
Make v the subject of formula.
Square both sides
Cross Multiply
Divide both sides by
Divide through by
Make the subject
Inverse both sides
Take square root of both sides
Substitute values for and
<em>The total kinetic energy of moving particles of matter is called </em><u><em>thermal energy.</em></u>
Answer:
-600 J
Explanation:
F₁ = 8i +29 j + 32k
F₂ = 48 i - 59 j - 22 k
F = F₁ +F₂ = 8i +29 j + 32k +48 i - 59 j - 22 k
F = 56i - 30 j + 10 k
displacement d = ( 0 - 20 )i + ( 0 - 15 )j + ( 7 -0) k
d = - 20 i - 15 j + 7 k
Work Done = F dot product d
F . d = - 56 x 20 - 30 x - 15 + 10 x 7
= - 1120 +450 + 70
= -600 J