Hurry pls! will give 50 points! ipe (pronounced ee-pay) is a brazilian hardwood that can be used as a durable (and expensive! ) construction material for decks, docks, and other outdoor projects. every cubic foot of ipe weighs 69 pounds. use dimensional analysis to convert the density of ipe to g/cm 3 . how does the density compare to other woods and materials on the list above?

Astone is dropped with no initial velocity from the top of a cliff and hits the ground a time of 3.9 s later. what is the height of the cliff, in units of meters? you may assume that air resistance is negligible. give the answer as a positive number question 15 a figure skater is rotating at a rate of 200 revolutions per minute. what is the angular speed, in units of rad/s? 200 o 20.9 12000 o 3.33

What is the orbital period of a spacecraft in a low orbit near the surface of mars? the radius of mars is 3.4×106m.

Aspectroscope breaks light up into its colors, allowing scientists to analyze light from the solar system and universe. by studying the spectral line patterns, widths, strengths and positions, scientists can determine the speed, position, and of celestial bodies. a) age b) origin c) rotation d) temperature