Answer:
turning lights of when you aren't using them
Hope this answers your questions...
When heat is added to a substance, the atoms and molecules begin to vibrate faster. As that happens the gap between them increases. Opposite happens when cooled, atoms and molecules begin to vibrate slower and the gap between each other decreases. Thus the motion and spacing between atoms signifies the state of matter of the substance.
Answer:
B. the force of the spring pulling on you
Explanation:
The independent variable is the variable that is being controlled. In this case, the distance the spring is stretched.
The dependent variable is the variable that is being measured. In this case, the force of the spring pulling back.
Answer:
Explanation:
The acceleration of an object (or a person, as in this case) is given by
where
v is the final velocity
u is the initial velocity
t is the time interval
In this problem,
u = 20 m/s
v = 40 m/s
t = 10 s
Therefore Jill's acceleration is
Answer:
5 Newtons Up and 5 Newtons Right
Explanation:
Treat each force vector as a value and choose the upward and rightward directions to be positive. Downward and Leftward forces will be considered "negative". For the vertical net force we have a positive 10 N upwards and a negative 5 N downwards. The net force in the vertical will be 5 N upwards. In the horizontal we have 10 N to the right and 5 N to the left. The net force in the horizontal will be 5 N to the Right.
It is easier if you split the motion into horizontal and vertical components.
