Given the following specific heats, which would require the greatest amount of heat energy to increase its temperature by 50C?
A) one gram of ammonia, 4.70 J/(gC)
B) Two grams of water, 4.184 J/(gC)
C) Six grams of aluminum, 0.90 J/(gC)
D) Twenty grams of silver, 0.24 J/(gC)
E) All of the above require the same amount of heat energy.
Question 2
Gravity on the moon is only 1/6 as strong as gravity on the earth. What is the mass of a 10 kg object on the moon and on the earth?
A) A 10 kg object weighs 10 kg on Earth and 10/6 = 1.67 kg on the moon.
B) The mass of an object is indirectly proportional to the mass of the planet on which it is located. Therefore, a 10 kg object weighs 10/6 = 1.67 kg on Earth and 10 kg on the moon.
C) The mass of a 10 kg object anywhere is 10 kg.
D) The mass of a 10 kg object on Earth is 22 pounds, while on the moon it is 3.7 pounds.
E) The 10 kg object weighs 60 kg on the moon.
Sun-tracking behaviour of the arctic plant, Dryas integrifolia, heats the reproductive parts of its
Prokaryotes Can Take the Heat
Remove the heat source, and check the skin for redness. Massage the area, and notice muscle ...
Reaction 6: Generation of the First Energy-Rich Compound
The oceans have absorbed 90% of excess energy
Selected hormones and their role in energy intake