The light reflected from a soap bubble (n = 1.40) appears red (l = 640 nm) at its center. What is the minimum thickness (in nm)?
a. 124
b. 104
c. 114
d. 134
e. 234
C
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Angular Quantities: A chicken is running in a circular path with an angular speed of 1.52 rad/s. How long does it take the chicken to complete one revolution?
A. 4.13 s B. 2.07 s C. 118 s D. 4.77 s E. 8.26 s
Anders and Taisen release their snowballs from the same height and at the same time. Ander's is dropped while Taisen’s is thrown horizontally. Which one hits the ground first?
A. the "dropped" snowball B. the "thrown" snowball C. they hit at the same time D. it depends on how hard Taisen threw E. it depends on the initial height
To predict the approximate energy release of either a fission or a fusion reaction, explain how a physicist uses a table of nuclear masses and the equation E = mImage
A) find the change in mass and divided by the speed of light squared B) find the change in mass and multiply by the speed of light squared C) find the change in mass, square it, and multiply by the speed of light D) take the square root of the change in mass and multiply by the speed of light
A metal block sits on top of a floating wooden block. If the metal block is placed on the bottom of the beaker, what happens to the level of water in the beaker?