SAT, 25.02.2022 18:50 Animallover100
A piece of metal weighing 59. 047 g was heated to 100. 0 °c and then put it into 100. 0 ml of water (initially at 23. 7 °c). The metal and water were allowed to come to an equilibrium temperature, determined to be 27. 8 °c. Assuming no heat lost to the environment, calculate the specific heat of the metal. (hint: first calculate the heat absorbed by the water then use this value for "q" to determine the specific heat of the metal in a second calculation).
Answers: 3
SAT, 27.06.2019 11:00
Apopulation of deer mice was introduced into a desert ecosystem. being dark-colored, the deer mice stood out in the sand and were easy prey for predators. over a few years, the color of the mice changed from dark brown to light brown. what role does natural selection play in this example? a. the change of color camouflaged them, which them hunt better. b. the change of color enabled them to regulate their body temperature. c. the change of color allowed them to hide better from predators. d. the change of color made their bodies tolerant to the harsh desert sand. e. the change of color allowed them to deflect the excessive heat.
Answers: 2
SAT, 27.06.2019 12:40
Land is to arable ; river is a, navigable b, shallow c, presumsor d, water
Answers: 1
A piece of metal weighing 59. 047 g was heated to 100. 0 °c and then put it into 100. 0 ml of water...
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