99% of the earth´s atmosphere by mass is made up of only these elements: Nitrogen and oxygen.
Answer: B) Nitrogen and oxygen.
Answer:
An object slides down an inclined plane at a constant velocity if the net force on the object is zero. We can use this fact to measure the coefficient of kinetic friction between two objects.
Explanation:
give me brainliest please!
Answer:
b. Decreases
Explanation:
The total resistance of a series circuit is equal to the sum of the individual resistances:
(1)
Therefore, as we add more lamps, the total resistance increases (because we add more positive tems in the sum in eq.(1).
The current in a circuit is given by Ohm's law:
where V is the voltage provided by the power source and 
is the total resistance. We notice that the current, I, is inversely proportional to the total resistance: therefore, when more lamps are added to the series circuit, the total resistance increases, and therefore the current in the circuit decreases.
Answer:
Yes, to educate other groups on possible measurement errors that can cause variation in results
Explanation:
Having divided the class in groups, the teacher expects the results of all groups if doing similar experiment to be within a certain range. In case Kyle's group never corrected the error, they could have results out of range as expected. It is prudent that the mistake be shared with the whole class so that in future there should not be a repeat of the same.
