Answer:

Explanation:
The equations of equilibrium for the child are: (x' in the direction parallel to slope, y' in the direction perpendicular to slope)

After some algebraic manipulation, an expression for the coefficient of kinetic friction is obtained:






Weight on any planet is (mass) x (acceleration of gravity there).
Acceleration of gravity on Earth is about 9.8 meters per second² .
So weight of 50 kg on Earth is (50 x 9.8) = <u>490 newtons</u>.
(That's about 110.2 pounds.)
The world’s supply of fossil fuels will dwindle slowly until a replacement source is found that provides the same power.
bc some day we will actually run out of it and find sth that gives power
Answer:
use a reusable source of energy such as hydro power
Explanation:
use renewable energy it saves the environment and does not create global warming
Answer:0.12 amperes
Explanation:
voltage=17.6v
Resistance=165.5 ohms
Current=voltage ➗ resistance
Current=17.6 ➗ 165.5
Current=0.12 amperes