A hair dryer draws 1500 W, a curling iron draws 800 W, and an electric light fixture draws 500 W. If all three of these appliances are operating in parallel on a 120 V circuit, what is the total current drawn?
a. 23.3 A
c. 36.7 A
b. 20.8 A
d. 19.4 A
A
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How many diatomic molecules are represented in the illustration above?
A) 1 B) 2 C) 3 D) 4
State Newton's first law of motion
What will be an ideal response?
A neutron is approximately twice as heavy as the electron
Indicate whether the statement is true or false
People sometimes have difficulty distinguishing between scientific explanations of common events and other kinds of explanation (superstition, prejudice, magic, etc.). Which of the following best helps to identify a scientific explanation?
A. We can test the explanation by comparing its predictions to measurement results B. The explanation relies on local folklore C. The explanation goes against the results of public opinion polls D. The explanation changes according to the social status of the observer