Physics, 28.08.2019 05:50 Terrydactly
Coins were developed as a medium of exchange because other items like cows, grain, and land were more difficult to move from place to place.
a. true
b. false
Answers: 1
Physics, 22.06.2019 05:30
What are similarities and differences of reflection, refraction, diffraction and absorption?
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Physics, 23.06.2019 00:30
What is the speed vfinal of the electron when it is 10.0 cm from charge 1?
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Physics, 23.06.2019 00:30
1. when conducting a test on what kind of music increases the growth of plants, all of the following would fail to meet to fair test standard except (1 point) using different kinds of plants. giving some plants more water than others. exposing the plants to different types of music. using nutrient-rich soil for one and lesser soil for others. 2. engineering uses scientific thinking to solve real-world problems. (1 point) true false 3. what does it mean to test a hypothesis? (1 point) pass a quiz on other scientists’ results analyze only the results from scientific sources not make assumptions about how an experiment will turn out see if the results of an experiment are what the scientist predicted
Answers: 3
Coins were developed as a medium of exchange because other items like cows, grain, and land were mor...
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