Identify the person who made the correct statement.
jim said the only type of petrified fossils come from wood.
tommy said the only type of petrified fossils come from teeth.
jim is correct.
tommy is correct.
neither jim nor tommy are correct.
both jim and tommy are correct.

The slotted link is pinned at o, and as a result of rotation it drives the peg p along the horizontal guide. compute the magnitude of the velocity and acceleration of p along the horizontal guide. compute the magnitudes of the velocity and acceleration of p as a function of θ if θ=(3t) rad, where t is measured in seconds.

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

Which of the following is not am example of a polymer? protein nylon kevlar concreta