The drawing shows three identical springs hanging from the ceiling. nothing is attached to the first spring, whereas a 4.2-n block hangs from the second spring. a block of unknown weight hangs from the third spring. from the drawing, determine (a) the spring constant (in n/m) and (b) the weight of the block hanging from the third spring.

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.

Astone is dropped from a cliff and falls 9.44 meters. what is the speed of the stone when it reaches the ground? a. 13.6 m/sec b. 1.39 m/sec c. 185 m/sec d. 9.80 m/sec

Need asap ‼️ 20 pts which gravitational force field diagram is drawn correctly? (answers in pictures below)