Eating. Your muscles in your arms and mouth use energy to feed itself. Then your body digest the food which also takes energy.
Sleep. When your tired, you don’t have much energy. It is said that you use more energy while your sleeping. But how do you become energized if you were using even more energy than before?
Answer:
hope it helps for you
Explanation:
A machine is an object or mechanical device that receives an input amount of work and transfers the energy to an output amount of work. For an ideal machine, the input work and output work are always the same. The six common simple machines are the lever, wheel and axle, pulley, inclined plane, wedge, and screw.
Answer:
Answer is D.
Explanation:
When you're dealing with a plane mirror, the angle of incidence (angle of incoming ray to the normal) is equal to the angle of reflection (angle of the outgoing ray to the normal.
The only situation here where that is true is in option D (both angles are 40 degrees). In the other 3 answer options, one angle is 40 degrees and one angle is 50 degrees.
Answer:
ice is a poor conductor of heat and less dense than water. During winter, ice floats and insulates the water under it. Below the frozen layer, the water remains in its liquid state and does not freeze. Also, oxygen is trapped beneath the layer of ice. This makes it possible for aquatic animals to survive during winter.
