Mechanical advantage allows you to apply a force over a what distance to what the distance an object moves

Which describes increasing the efficiency of energy resource

Ball bearings are made by letting spherical drops of molten metal fall inside a talll tower-called a shot tower- and solidify as they fall. a-if a bearing needs 4.0 s to solidify enough for impact, how high must the tower be? b- what is the bearing's impact velocity?

Using the black numbers on the stopwatch to answer the questions. what is the most accurate reading of seconds as indicated by the long second hand? a. 5.3 b. 5.6 c. 7.2 d. 53 secs its for edg i found out it was 5.3 and tenth of seconds freebie