I believe your answer is a decrease in cloud cover.
Julius Robert Mayer discovered the Law of Conservation of Energy.
Answer:
The speed of the kid and the skateboard together is 0.723 m/s
Explanation:
Let the mass of the kid be 
Let the mass of the skateboard be 
The initial speed of the skateboard, 
The initial horizontal speed of the boy as he jumps on the skateboard, 
Let the speed of the kid and the skateboard together be v
According to the principle of conservation of momentum:

Substituting the appropriate values into the given equation

36 = 49.8 v
v = 36/49.8
v = 0.723 m/s
Power in a wire where current is flowing can be calculated from the product of the square of the current and the resistance. Resistance is equal to the product of resistivity and length divided by the area of the wire. We do as follows:
Resistance = 2.44 × 10-8 ( 0.11) / (π)(0.0009)^2 = 1.055x10^-3 <span>Ω
P = I^2R = .170^2 (</span>1.055x10^-3 ) = 3.048x10^-5 W
Answer:
Star formation occurs most rapidly in the spiral arms, where the density of interstellar matter is highest.