What happens when a wave hits a barrier with a single opening?

Sound waves a. have an irregular vibration pattern. b. do not require a medium for transmission. c. are a change of pressure that moves through matter. d. move at the same rate at any given temperature.

Give two conditions in which an object becomes weightless

1. What are the approximate calorie needs of a sedentary 16 year old male? A. 1.800 calories C. 2,200 calories B 2.000 calories D. 2,400 calories

Which of the following is not a common property of basesp

A train moves a constant velocity of 50km/h how far will it move in 0.5h

How do organisms use cellular respiration and fermentation to survive?

You decide to redo Galileo's inclined plane experiment. On the shelf in your pantry you find two cans of soup that are equal in size and weight. One is chicken broth and the other is cream of mushroom. You decide to use these for the experiment.

An ___ wave carries energy through matter

In automatic response to a stimulus is called a reflex

Who invented evolution?