A spring was at its resting position where it is attached to a wall at its left side and a block at its right side as N
shown below. The spring constant is k = 95.5 – The block is moved rightwards and the spring's right end is
displaced from the position of 0.200 m to 0.220 m where it is held in place. All positions are measured from
the origin o of the wall.
m
M
+x
o →
What is the spring force exerted on the block?

F500 j of energy were added to 1 kg of each of these samples, which would experience the least temperature increase?

(2) (a) you have a simple circuit that consists of only a battery (δvbat=1.5v) and two resistors with resistance r1=10ω and r2=5ω, connected in series with each other. what is the current running through the battery? (b) you re-arrange your circuit so now r2 is attached in parallel to r1 rather than in series. what is the current running through the battery? (c) you add an additional resistor r3=7ω on the same branch as r2. what is the current running through the battery? (d) what is the power dissipated in r3?

The energy produced as a result of this flow of electrons from atom to atom is called