Read the passage about a science experiment that Jacob conducted. Jacob took an empty water bottle and put the lid on it. He then put the water bottle into a boiling water bath. After 5 minutes, Jacob removed the bottle and immediately placed it in a cold water bath.

Which of the following best explains what Jacob observed?

Which of the following represents a virtual image?

The x-coordinate of a particle in curvilinear motion is given by x = 3.1t3 - 4.9t where x is in feet and t is in seconds. the y-component of acceleration in feet per second squared is given by ay = 2.3t. if the particle has y-components y = 0 and vy = 5.0 ft/sec when t = 0, find the magnitudes of the velocity v and acceleration a when t = 1.8 sec. sketch the path for the first 1.8 seconds of motion, and show the velocity and acceleration vectors for t = 1.8 sec. answers: v = ft/sec a = ft/sec2

Ineed the answer to question 1 , i’m desperate