Option 4 of 5
-Fair
A skydiver is dropped out of an airplane
at an altitude of 10000 feet. He reaches
a terminal velocity 40 seconds later.
Consider four positions during his fall.
A: Initial State (t = 0 seconds)
B: 10 Seconds After Drop
C: 30 seconds After Drop
D: 40 seconds After Drop
Toggle through the set of vector
diagrams at the right to identify the
relative magnitude of the air resistance
vector for each of these four positions.
(Consider vertical motion only.
IF
air
IF.
air
Check Answer

Ahollow metal sphere has 6 cm and 11 cm inner and outer radii, respectively. the surface charge density on the inside surface is −100nc/m2. the surface charge density on the exterior surface is:

You are a researcher for a golf club manufacturer. you are given two identical looking cubes of a metal alloy. you are informed that they are made of the exact same material, but one is crystalline, whereas the other is amorphous. it is your job to determine which one is amorphous this one is more stress-resistant and is useful in reinforcing golf clubs. which of the following is the best way to determine which is which? a. determine the density of each cube. the more dense one is the amorphous solid. b. melt both cubes and look for a broader range of melting temperatures. the one that melts over a broader range of temperatures is the amorphous solid. c. determine the density of each cube. the less dense cube is the amorphous solid. d. melt both cubes and measure the range of melting temperatures. the one that melts over a narrower range of temperatures is the amorphous solid.

Agust of wind pushes a beach ball with a force of 9 newtons. the ball rolls 10 meters in 3 seconds. what is the power of the wind?