Answer:
Attometer
Explanation:
an attometer is the smallest unit of measurement.
Hope it helped!
Answer: It is generally believed that tornadic wind speeds can be as high as 300 mph in the most violent tornadoes.
Answer:
Involuntary muscle action are muscles that move WITHOUT conscious control, and voluntary muscle action are muscles that move WITH conscious control.
Explanation:
A example of a involuntary muscle action would be your heart. Your heart is a muscle beats without you thinking about it and is very vital to your body. A example of a voluntary muscle would be the muscles that are attached to your bones and allow you to move your body, and it's voluntary because your body won't move on it's own.
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Answer:
<em>The change of momentum of the dart is 0.84 Nw.s</em>
Explanation:
<u>Impulse and change of momentum</u>
The change in momentum of an object is its mass times the change in its velocity:
The change in the momentum can also be found by considering the force acting on it. If a force F acts for a time Δt, the change of momentum is given by:
The dart hits a dashboard with a net force of 14 N during the collision and stops in 0.06 seconds. The change of momentum is:
The change of momentum of the dart is 0.84 Nw.s
<span><u><em>Answer:</em></u>
205 Joules of energy must be removed from the food
<u><em>Explanation:</em></u>
<u>The first law of thermodynamics states that:</u>
"The change in the internal energy of a closed system must be equal to the heat supplied to the system"
This law is actually a rephrasing of the law of conservation of energy which simply states that : "energy can neither be created nor destroyed, but can change from one form to another".
Now, in the given, we know that 205 J of energy were released from the system, this means that <u>the change in the internal energy of the system was also 205 J.</u>
<u>In other words:</u>
amount of energy removed from food = amount of energy released to the room
Therefore, the amount of energy removed from the food is 205 J.
Hope this helps :)</span>
