Calculate the equivalent resistance between the points A &B in the combination of resistors shown in fig3.56
(Book:Pradeep Physics
PG: 231 Mock test 3 )

Mutt and jeff are running along a path each pushing a cart loaded with rocks. if mutt's wagon has a mass two times greater than jeff's and they want to stay together, arriving at their destination at the same time, what must happen? a) jeff should slow down so mutt can catch up. b) mutt must use half as much force to push his cart. c) mutt must use twice as much force to push his cart. d) mutt and jeff will use the same force, but mutt will take bigger steps.

What determines the amount of inertia an object has

4. if you were an astronaut on the moon, what would you experience? what would you see from your perspective?