Pneumonia and strep throat are caused by:

bacteria

mold

yeast

virus

Take one jar with salt water and another with pure water. put an egg into both jars. In which the jar egg floated over the liquid. Justify your answer

A force of 10N propels a 350-g toy rocket upwards. The rocket initially starts from rest and the rocket motor burns for 0.1 s. What impulse does the rocket receive from the thrust? A. 1.0 N•s B. 3.5 N•s C. 100 N•s D.

If a stationary object experiences a downward force of 12 n and an upward force of 12 n, what is the motion of the object?

A basketball takes 30 seconds to roll 15 meters west on a basketball court. what is the speed and velocity of the basketball?

Two plane mirrors are separated by 120°, as the drawing illustrates. If a ray strikes mirror M1 at a θ1 = 64° angle of incidence, at what angle θ2 does it leave mirror M2?

What evidence is there that joule had an exceptional education?

What was the hottest temperature ever recorded on earth?

Another important gas is water vapor, which condensesarouns

Which describes the process of conduction? A. Heat energy is transferred from the land to the air by direct contact. B. Heat energy is transferred from the land to the air by indirect contact. C. Heat energy is transferred by mass movements of air.

What factor causes the seasons? A: Rotation of earth's axis B: The tilt of earth's axis with respect to the sun C: The appearance of the moon D: An eclipse