The refrigeration unit on an ice cream truck is rated at 35,500 btu/hr. what is the amount of heat removed if is operates for 2.75 hours?

Lymphocytes known as blastocysts make antibodies that fight infection. select the best answer from the choices provided t f

Agroup of students were investigating the force of gravity. they began by dropping a foam ball from a height of 3 meters into a bucket of sand. the ball hit the sand in 0.306 seconds. they dropped additional balls of approximately the same diameter, but of different masses. here is the data they collected. based on this experiment and the collected data, what would their conclusion be?

Which of the following are guidelines to follow for obtaining accurate observations