Physics, 20.04.2021 19:00 miagiancarlo
a skydiver slows down from 54 m/s to 4 m/s by opening his parachute. if this takes 0.75 seconds what is the magnitude of the skydivers acceleration ?
Answers: 3
Physics, 22.06.2019 16:50
Acommercial refrigerator with refrigerant-134a as the working fluid is used to keep the refrigerated space at -35Ā°c by rejecting waste heat to cooling water that enters the condenser at 18Ā°c at a rate of 0.25 kg/s and leaves at 26Ā°c. the refrigerant enters the condenser at 1.2 mpa and 50Ā°c. if the compressor consumes 3.3 kw of power, determine (a) the mass flow rate of the refrigerant, (b) the refrigeration load, (c) the cop, and (d) the minimum power input to the compressor for the same refrigeration load.
Answers: 2
Physics, 22.06.2019 17:40
The first-order reaction aā2b+c has rate constant 0.538 sā1. if the initial concentration of a is 0.867 mol lā1, what is the half-life of the reaction in seconds? remember to use correct significant figures in your answer (round your answer to the nearest hundredth). do not include units in your response.
Answers: 3
Physics, 22.06.2019 20:00
An element becomes a positively charged ion when itloses protons.loses electrons.gains electrons.gains neutrons.
Answers: 2
Physics, 22.06.2019 21:50
As microwave light travels through a liquid, it moves at a speed of 2.2 x 108 m/s. if the frequency of this light wave is 1.1 x 108 hz, what is the wavelength of this microwave?
Answers: 2
a skydiver slows down from 54 m/s to 4 m/s by opening his parachute. if this takes 0.75 seconds what...
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