Answer:
(a) the blocks all had different masses.
Explanation:
The surface is smooth, therefore coefficient of friction is tending to zero.
Forces for each blocks varied from 6N to 8N to 7N to 5N
The blocks were made of different materials and different materials are going to have varying weight for the same size of block.
Answer:
It would be PE=16kg * 9.8 m/s^2 * 1m = 160 J
Explanation:
The person who asked this question ended up answering his own question so I'm here to let you know all that the answer was founded by the person whos posted the question himself full credit goes to him :)
The mean of the velocities.
(finalVelocity + initialVelocity)/2
Note that the electric field lines begin from the higher voltage to the lower
Because the negative pole is lower voltage than the positive pole
The lines go out the positive charges and go in the negative charges
Then, the correct statement is:
<u>C. Source A is negatively charged and source B is positively charged.</u>
A. They change the motion of objects
