I NEED HELP PLZ ASAP Assuming the height of the hill in Fig. 6–18 is 45 m, and the roller-coaster car starts from rest at the top,
First: Calculate the speed of the roller-coaster car at the bottom of the hill (on your paper)
Then At what height will the coaster have 0.35 times its original speed.
Take y = 0 at the bottom of the hill.
PLZ SHOW WORK TO HELP ME UNDERSTAND. THANKS!!

Asample of a gaseous substance changes into a liquid

Animals respond in various ways to stimuli detected through their senses. some of these responses are stimulated by the presence of danger. which of these animal responses is the best example of a response to an immediate threat? a) a rooster crows every morning at the first sign of light. b) as something approaches an octopus, it shoots a cloud of ink. c) from late fall until spring, bears hibernate to preserve energy. reactivate d) a dog is getting hot in the sunlight, so he moves to a shaded area.

What is the magnitude of the resultant vector round your answer to the nearest tenth