In a video game, a ball moving at 0.6 meter/second collides with a wall. after the collision, the velocity of the ball changed to -0.4 meter/second. the collision takes 0.2 seconds to occur. what’s the acceleration of the ball during the collision? use .
a.
-1.0 m/s2
b.
1.0 m/s2
c.
-5.0 m/s2
d.
5.0 m/s2
e.
0.24 m/s2

What is a subatomic particle with a negative charge and very little mass?

Consider the growth of a 20-nm-diameter silicon nanowire onto a silicon wafer. the temperature of the wafer surface is maintained at 2400 k. assume the thermal conductivity of the silicon nanowire is 20 wm-1k-1 and all its surfaces including the tip are subjected to convection heat transfer with the coefficient h = 1×105 wm-2k-1 and t∞ = 8000 k. when the nanowire grows to l = 300 nm, what is the temperature of the nanowire tip (t (x =

Elements on the periodic table are ordered according to their