It increases confidence because the more times you conduct the same experiment over and over should either prove your hypothesis right and wrong and eliminate any random occurrences that might affect your results.
Answer:
L = 1.06 m
Explanation:
As per work energy theorem we know that work done by all forces must be equal to change in kinetic energy
so here we will have
now we know that
initial and final speed of the book is zero so initial and final kinetic energy will be zero
here we know that
k = 250 N/m
x = 0.250 m
m = 2.50 kg
now plug in all data in it
now we have
The gravitational energy is going up subtracting the energy that was on the ground
To find the net charge you take the number of protons and subtract the number of electrons, and the answer will be your charge.
This atom has 11 electrons AND 11 protons
11 - 11 = 0 net charge
Answer: I'll help you when i end school
Explanation: ok