A horizontal uniform bar of mass 2.9 kgkg and length 3.0 mm is hung horizontally on two vertical strings. String 1 is attached to the end of the bar, and string 2 is attached a distance 0.74 mm from the other end. A monkey of mass 1.45 kgkg walks from one end of the bar to the other. Find the tension T1T1T_1 in string 1 at the moment that the monkey is halfway between the ends of the bar.

The softest and hardest minerals are: softest hardest

(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?

Give an example in which the electrical energy changes to light energy