Although Venus is farther from the Sun than Mercury, its surface temperature is hotter than Mercury's.
Answer the following statement true (T) or false (F)
True
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You are asked to design a coil to operate in air that will produce a flux density of 0.01T. The maximum current for the coil wire is 1 A, and the space available for the coil limits the length to 1 cm. How many loops are required for this coil? Round your answer to the nearest whole number.
What will be an ideal response?
What is the molarity when water is added to 2 moles of sodium chloride to make 0.5 liter of solution?
A) 8 M B) 4 M C) 5 M D) 2.5 M
A swimmer swims 20 laps in a north-south facing pool in 7.00 minutes. Her first lap is toward the north. Her displacement and average velocity are
a. 0; 0. b. 0; 2.38 m/s, south. c. 0; 2.38 m/s, north. d. 1 000 m, south; 2.38 m/s, south. e. 1 000 m, north; 2.38 m/s, north.
Evidence for dark matter is exhibited by the
A) relatively similar speeds at which all stars in a galaxy orbit the galactic nucleus. B) speed at which galaxies orbit one another within clusters. C) degree to which galaxy clusters exhibit gravitational lensing effects. D) All of the above