Block a in fig. e8.24 has mass 1.00 kg, and block b has mass 3.00 kg. the blocks are forced together, compressing a spring s between them; then the system is released from rest on a level, frictionless surface. the spring, which has negligible mass, is not fastened to either block and drops to the surface after it has expanded. block b acquires a speed of 1.20 m> s. (a) what is the final speed of block a? (b) how much potential energy was stored in the compressed spring?

most of them using statistics and defining how things are being measured

as we probably am aware that our atmosphere or air have various levels, each level has different gasses, and each gas has another porousness. at the point when the light originates from lower porousness to higher penetrability, it alters its course. with the goal that implies that when the light originates from the moon to the earth, it alters it's course a lot more occasions. it essentially implies that the state of the light piece of the moon is changed on the earth.

not copied too! hope this !

joke:

h o h o hope you have a merry christmas!

answeralert drivers who drift off the road;