Which of the following is FALSE
A) The edge of the universe is 14 billion light years away from us and we are located in the center of the universe
b) the farther away an object is the earlier we see it in time from earth
c) we see object as they were and where they were when light left them, but not as they are today
A) The edge of the universe is 14 billion light years away from us and we are located in the center of the universe
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A one-kilogram gold ingot is carried from the bottom of the Eiffel tower to the top, 300 m above ground level. By what amount does its mass change?
A) Its mass does not change. B) Its mass increases by 3.27 × 10-14 kg. C) Its mass decreases by 3.27 × 10-14 kg. D) Its mass increases by 1.64 × 10-14 kg. E) Its mass decreases by 1.64 × 10-14 kg.
One mole of ammonia (NH3) has a mass of 17.0 g, and one mole is equal to 6.02 × 10^23 molecules. How many hydrogen (H) atoms are in 55.0 g of ammonia? Note that each molecule of ammonia has 3 hydrogen atoms
a. 5.84E+24 b. 1.95E+24 c. 3.07E+25 d. 6.49E+23
Define the term viscosity.
What will be an ideal response?
A satellite is in a circular orbit about the Earth at a distance of two Earth radii above the surface. What is the speed of the satellite? (The radius of the Earth is 6.4 × 10^6 m, and G = 6.67 × 10^-11 N × m2/kg2.)
a. 2800 m/s c. 5600 m/s b. 4600 m/s d. 16,800 m/s