The goal of this experiment was to answer the question, "How does diffraction occur?" Suppose you formulated
this alternate hypothesis:
If the gap width is increased while keeping wavelength
constant, then the observed diffraction will decrease
because the less the ratio between wavelength and gap
width is, the smaller the observed diffraction angle will
be.
To test this hypothesis, you would change the
vand observe the
in the system
Therefore, the independent variable would be the
and the dependent variable would
be the

Why does karst topography exist in some geographic location? a. few climates have enough oxygen b. most regions have rock layers other than limestone c. in most regions, the soil is too thin d. the water is too acidic enough in most places

7. see worksheet 1 for values of variables x1, x2 and x3 and answer the following questions: a. for each variable find the mean, median, coefficient of skewness, range and population standard deviation. b. compared to variable x1, how are the mean and median affected by extreme values (outliers) seen in x2 and x3. c. is the median or mean the better measure of location for x2 and x3? explain. d. explain the differences in the magnitudes of the skewness coefficients for the three variables. e. what is the relationship between the range and standard deviation looking across the three variables?

Relative to the ground below, how many joules of potential energy does a 1000-kg boulder have at the top of a 5-m ledge?