QUESTÃO 01. Vimos que há vários tipos de radiações eletromagnéticas: rádio, microondas, infravermelho, visível, ultravioleta, raios-X, raios gama etc. Algumas dessas radiações são ionizantes e outras não. O que significa dizer que uma radiação é ionizante? Quais consequências a radiação ionizante pode provocar no ser humano? (Escreva um texto curto e objetivo.) *
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Physics, 21.06.2019 20:50
Identify the type of synthetic material used in each object
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Physics, 22.06.2019 16:30
He latent heat of vaporization for ethyl alcohol is 854 j/g. the amount of energy, rounded to the nearest whole number, needed to change 5.20 grams of ethyl alcohol from a liquid to a gas is
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Physics, 22.06.2019 16:40
The astronauts on the space shuttle flights experienced an acceleration of 29 m/s2 (about 3 "g's") during lift-off. what upward force must the astronaut's seat apply to the astronaut in order to cause this acceleration? assume the astronaut's mass is 70 kg, and compute this force when the acceleration is near the earth's surface so their weight equals latex: mg m g .
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Physics, 22.06.2019 18:50
Avertical clean glass piezometer tube has an inside diameter of d = 1 mm and is used to measure pressure in a horizontal pipe carrying water as shown. due to pressure in the pipe, the water at 20c rises into the tube to a height h. if the water pressure in the pipe is p = 500 pa gauge, estimate the height h: (a) without considering surface tension (b) with surface tension (capillary) effects. the contact angle can be assumed at 30 deg
Answers: 2
QUESTÃO 01. Vimos que há vários tipos de radiações eletromagnéticas: rádio, microondas, infravermelh...
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