This is what scientists call Newton's cradle. It is a handy devise used to illustrate many concepts in physics. Imagine the ball on the right is dropped. According to Newton's third law of motion, what is the expected result once the ball
hits the ball closest to it?
0) Q:
A:
A)
The single ball on the left will move as high as the ball on the right was
dropped.
The dropped ball will exert a force on the first ball it hits and that ball will
move slightly.
B)
9
The second ball will move to the right causing a chain reaction and all
four balls will then move right.
X D)
The second ball in the line will exert and equal force on the dropped ball
and both balls will stop moving.

1. a net force of 100 newton’s is applied to a wagon for 5 seconds. this causes the wagon to undergo a change in momentum of

Antireflective coatings on solar cells are often made by applying a thin film of silicon nitride (sinx), which has an index of refractive of 1.2, on the top of the silicon solar cell, which has a refractive index of about 3.5. however, the sun emits radiation of various wavelengths which the solar cell absorbs, and the antireflective coating can only absolutely minimize the reflection of one of these wavelengths. the coating thickness is chosen to reduce the reflection of green/yellow light (e = 2.2 ev), which is the most intense color in the solar spectrum (shown below). which of the following coatings would minimize reflection of green/yellow light? the answer is 820 nm how? what is the angular width of the central maximum of an electron traveling at 2 x 108 m/s going through a single slit of width 1 mm.

Two point charges are separated by a certain distance. how does the strength of the electric field produced by the first charge, at the position of the second charge, change if the second charge is doubled? a. the field does not change b. the field strength decreases by half. c. the field strength doubles d. the field strength quadruples