A ball is thrown upward with a speed of approximately 30 ms. Which of the following sets of numbers are good estimates of the ball's velocity 1 second. 2 seconds and 3
seconds later?
a. -10 m/s. -10 m/s. -10 m/s
b. 30 m/s. 30 m s. 30 m/s
c. 40 m s. 50 m s. 60 m/s
d. 20 m s. 10 m s. Cms

dec 23, 2016 - a load of bricks weighing 680 n a distance of 10 m across a parking lot. if if the worker pushes the cart with a constant force of 209 n, what work= force x distance = 220 n x 10 m = 2200 n.m = 2200 j i don't know where the person got it from, but the initial part, work= force x distance me.

molecules are free to separate from each other and will take on the shape of the container. molecules move completely at random and high speeds. they vibrate in a fixed position and do not move around much. molecules expand to the edge of their container.