Question 6 How much PE does a 0.51kg crate have if it is 3m above the ground?
1.53 J
O 15 )
5.9)
3.51)

When applying kirchhoff's rules, one of the essential steps is to mark each resistor with plus and minus signs to label how the electric potential changes from one end of the resistor to the other. the circuit in the drawing contains four resistors, each marked with the associated plus and minus signs. however, one resistor is marked incorrectly. which one is it?

Consider a system to be two train cars traveling toward each other. what is the total momentum of the system before the train cars collide?   kg • what must the total momentum of the system be after the train cars collide?   kg •  

Which component of the earth’s atmosphere is decreased due to photosynthesis?