The second most abundant gas in the atmosphere is
a. oxygen.
b. nitrogen.
c. water vapor.
d. carbon dioxide.
a
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The surface temperature of a white dwarf is higher than the surface temperature of the Sun.
Answer the following statement true (T) or false (F)
Buoyancy: A rectangular box of negligible mass measures 5.0 m long, 1.0 m wide, and 0.50 m high. How many kilograms of mass can be loaded onto the box before it sinks in a lake having water of density 1000 kg/m3?
A. 0.50 × 103 kg B. 1.5 × 103 kg C. 2.5 × 103 kg D. 3.5 × 103 kg
A frictionless simple pendulum on Earth has a period of 1.75 s. On Planet X its period is 2.14 s. What is the acceleration due to gravity on Planet X?
What will be an ideal response?
Why do you suppose water has been such a popular heat transfer material (steam heat, hot water systems, etc)?
What will be an ideal response?