Atmosphere pressure on mars is roughly half that of Earth's at sea level
Indicate whether the statement is true or false.
Answer: False.
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Electric field lines
A) are closer together the stronger the field. B) start on negative charges and end on positive charges. C) were invented by Isaac Newton. D) are perpendicular to the lines of force. E) were discovered by Franklin.
What is the root-mean-square speed of chlorine gas molecules at a temperature of 346 K? (R = 8.31 J/mol/K, NA = 6.02 × 10^23, and the molecular mass of Cl2 = 71)
a. 1.1E+2 m/s b. 3.5E+2 m/s c. 8.2E+4 m/s d. 1.2E+5 m/s e. 3.5E+4 m/s
A 5.0-? resistor and a 9.0-? resistor are connected in parallel. A 4.0-? resistor is then connected in series with this parallel combination. An ideal 6.0-V battery is then connected across the series-parallel combination of the three resistors
What is the current through (a) the 4.0-? resistor? (b) the 5.0-? resistor? (c) the 9.0-? resistor?
Define efficiency. Give an example