tyrone6410
05.05.2020 •
Physics
Austin performed an experiment. He put 100mL of vegetable oil (density 0.9 g/ml) in a graduated cylinder. He put a 100g mass of an unknown metal in to the oil and it sank while displacing 11 mL of oil. How much should the unknown metal weigh in the oil?
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Ответ:
Explanation:
mass of displaced oil = 11 x .9
= 9.9 gm
9.9 x 10⁻³ kg
weight of displaced oil = 9.9 x 9.81 x 10⁻³ N
= .097 N .
buoyant force by oil = .097 N
weight of unknown metal = .1 x 9.8
= .98 N .
weight of metal in oil = .98 - .097
= .883 N .
=
Ответ:
d. kilometers per hour
Explanation:
Halley's comet is named after the astronomer Halley. This comet entered the inner solar system from the Kupier's belt. It is very large in size. It appears every 75 or 79 years in the inner solar system and can be seen with the naked eye. Its orbit is elliptical in shape. It reflects the sun light, otherwise it is entirely dark and made up of volatile material, as observed