Which one is more accurate M1= 1.0cm +- 0.1cm
M2= 0.10cm +- 0.01cm
M3= 0.100cm +- 0.001cm

A. M1
B. M2
C. M3
D. All have same accuracy

Bone-strengthening physical activity done increases bone-mineral content and bone density in youth.

Yvette hangs a 2.4kg bird feeder in the middle of a rope tied between two trees. the feeder creates a tension of 480 n in each side of the the rope.

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 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