Select all that apply.
refer to the following table for information about gold and mercury. then choose which statements are true about equal sample sizes of the metals.
element specific heat density
gold 0.031 19.3
mercury 0.033 13.5
a. the mercury will change temperature at a much faster rate under the same heating conditions.
b. the two metal samples will change temperature at about the same rate.
c. the gold would float if placed in the mercury.
d. the gold would sink to the bottom if placed in the mercury.

Emmy kicks a soccer ball up at an angle of 45° over a level field. she watches the ball's trajectory and notices that it lands, two seconds after being kicked, about 20 m away to the north. assume that air resistance is negligible, and plot the horizontal and vertical components of the ball's velocity as a function of time. consider only the time that the ball is in the air, after being kicked but before landing. take "north" and "up" as the positive ‑ and ‑directions, respectively, and use ≈10 m/s2 for the downward acceleration due to gravity.