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19.04.2021 •
Chemistry
Name the processes involved in obtaining isolated nitrogen from air in the lab
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Ответ:
Cryogenic distillation.
Pressure swing adsorption.
Membrane nitrogen generation.
Explanation:
Ответ:
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1. The weight of an object to change depending on if it is on Earth or the Moon
the acceleration due to gravity.
2. The mass of a mouse is around 22 grams (0.022 kg).
weight of a mouse at sea level on Earth = 0.022 kg x 10 m/s²
= 0.22 N
3. The mass of a mouse is around 22 grams (0.022 kg)
weight of a mouse on the Moon = 0.022 kg x 10 m/s²
= 0.035 N
4. The bottom of a container has an area of 25 cm²
6.5 newtons of water are poured into the container,
The pressure exerted on the bottom = 6.5 N /25 cm²
= 0.26 N/cm²
5. As a fish swims deeper into the ocean, the pressure on its body increases.
6. The weight of a box that creates a pressure of 565 N/cm² when resting on a 15.0 cm² surface = 565 N/cm² x 15.0 cm²
= 8475 N
7. When pressure is applied to a liquid, it will change its _shape__, but not its _volume_____
8. Hydraulic systems work because ___liquids are incompressible __.
9. A hydraulic system is designed to lift cars for inspection in a service station. The narrow end of the system has a surface area of 5.00 cm^2, and the lift platform (the wide end) has a surface area of 725 cm^2. If a force of 81.0 newtons is applied to the narrow end.
Upward lift force will be exerted at the wide end
=
= 11,745 N