Physics, 03.08.2019 12:30 alexanderjones9116
Which statement best describes why the universe could be considered an isolated system? a. all matter that enters the universe remains contained within the universe. b. energy and matter are created in the universe; when new energy is created, old energy exits. c. in the universe, all energy and matter are contained; no energy or matter enters or exits. d. the universe is a contained system where no energy exits.
Answers: 1
Physics, 21.06.2019 19:10
Athin, square metal plate measures 14 cm on each side and has emissivity of 0.60. the plate is heated to a temperature of 745°c. what is the rate at which the plate radiates energy ? the stefan-boltzmann constant is 5.67 × 10-8 w/(m2 ? k4). remember that the plate will radiate energy from both its top and bottom surfaces.
Answers: 1
Physics, 22.06.2019 00:00
Name three different units of energy used to measure heat and describe what type of situations each is usually used.
Answers: 1
Physics, 22.06.2019 02:30
Which is an example of gaining a static charge by conduction? a) rubbing a balloon against your hair. b) shuffling your shoes across a carpet. c) bringing a charged rod near an electroscope. d) touching your car on a cold day and getting a shock.
Answers: 1
Physics, 22.06.2019 10:40
When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is
Answers: 2
Which statement best describes why the universe could be considered an isolated system? a. all mat...
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