A student drops a ball from a height of 49.0m. If the ball increases speed at a uniform rate of 9.81m/s2, determine all unknowns. How long did the ball remain in the air? What was the ball’s speed just before striking the ground?

What is the earliest point in the universe that we can observe? why can’t we see back further than this?

The passage that directs air to the lungs is called a. diaphragm. b. larynx. c. bronchi. d. pharynx.

At an oceanside nuclear power plant, seawater is used as part of the cooling system. this raises the temperature of the water that is discharged back into the ocean. the amount that the water temperature is raised has a uniform distribution over the interval from 10° to 25° c. what is the standard deviation of the temperature increase?