Physics, 24.07.2019 20:00 whortonraijan
1.when molecules change state of matter from a liquid to a solid, then a. there is no change in the kinetic energy of the molecules. b. the kinetic energy of the molecules increases. c. the molecules stop moving. d. the kinetic energy of the molecules decreases. 2.timothy and kelsy put an ice cute on top of a sodium bicarbonate tab. over time, they witnessed bubbling coming from the place where the ice cube and tab meet. which of the following represents a similar kind of change in matter? a. baking a birthday cake for your mother. b. filling up a balloon with hot air. c. taking a glass of water and freezing it by placing it in the freezer d. your dog ripping up your homework. 3.an example of a chemical property is the a. mass of a substance per unit volume b. ability to dissolve in solution c. point where solid becomes liquid d. tendency to undergo oxidation
Answers: 1
Physics, 22.06.2019 11:00
A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n
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Physics, 22.06.2019 16:30
Select all the correct answers. which three statements about electromagnetic radiation are true?
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Physics, 22.06.2019 23:00
A6.0-μf air-filled capacitor is connected across a 100-v voltage source. after the source fully charges the capacitor, the capacitor is immersed in transformer oil (of dielectric constant 4.5). how much additional charge flows from the voltage source, which remained connected during the process?
Answers: 1
1.when molecules change state of matter from a liquid to a solid, then a. there is no change in the...
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