Energy flows by radiation or convection inside stars but almost never by conduction
a. True
b. False
Indicate whether the statement is true or false
True
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Suppose that, as you sit in your classroom, you see two balls fall to the floor and hit at exactly the same time
According to the theory of relativity, other people sitting in the classroom with you will not agree that the balls hit the floor at the same time. Indicate whether the statement is true or false
If the frequency of a violin string is to be increased by 20%, what change in tension must be applied?
A) 44% B) 20% C) 4.5% D) 10%
Explain the difference between cosmic rays and electromagnetic radiation, and how cosmic particles are captured
What will be an ideal response?
What is the name for the radio frequency window astronomers use to search for extraterrestrial communication?
a. Drake window b. Phoenix waves c. SETI window d. water hole e. OH hole