When a wire that has a large diameter and a length l is connected across the terminals of an automobile battery, the current is 40 a. if we cut the wire to half of its original length and connect one piece that has a length l/2 across the terminals of the same battery, the current will be:
a) 160a
b) 40a
c) 10a
d) 80a
e) 20a

Select the word from the list that best fits the definition classification of most stars on the h-r diagram

10 points! will mark brainiest! in a heat engine if 1,000 j of heat enters the system and the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2,000 j 1: write the equation 2: list out your known variables 3: plug the numbers into the equations 4: solve 5: write your solution statement that includes initial energy and final energy added you so much!

Astone is thrown with a speed v0 and returns to earth, as the drawing shows. ignore friction and air resistance, and consider the initial and final locations of the stone. which one of the following correctly describes the change δpe in the gravitational potential energy and the change δke in the kinetic energy of the stone as it moves from its initial to its final location? options a.δpe = 0 j and δke = 0 j b.δpe is positive and δke is negative c.δpe = 0 j and δke is positive d.δpe is negative and δke is positive e.δpe = 0 j and δke is negative