Maceo is making rock candy. Which best describes the steps she should take?

Physics

2 answers:

Ymorist [56]3 years ago

4 0

Answer:

<h2>Heat a saturated sugar water solution, dissolve more sugar, then let the solution cool</h2>

Explanation:

To make rock candy, you first need to place the water in a pan and bring it to boil. At the beginning you make a sugar water solution by adding a bit of sugar, that will ensure that you have the right temperature (remember, the more sugar you add, the harder is to dissolve it).

After you do the first process, then you continue to add the rest of the sugar while you stir, when it's completely dissolved, you remove the pan from the heat, and let the solution cool.

Therefore, the right answer is the first choice, because describes best the process.

Andru [333]3 years ago

3 0

Answer:

The answer is heat a saturated sugar water solution, dissolve more sugar, then let the solution cool

Explanation:

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Picking up sound waves is the stage of listening that most people refer to as what?

kirill [66]

A. Picking up sound waves is the stage of listening that most people refer to as hearing.

<h3>What is hearing?</h3>

Hearing, or auditory perception, is the ability to perceive sounds through an organ, such as an ear, by detecting vibrations as periodic changes in the pressure of a surrounding medium.

During learning process, when someone picks up the sound waves directed to him/her, it is known as the act of hearing,

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1 year ago

how much gravitational potential energy do you give a 70 kg person when you lift him up 3 m in the air?

SCORPION-xisa [38]

Given gravitational potential energy when he's lifted is 2058 J.

Kinetic energy is transferred to the person.

Amount of kinetic energy the person has is -2058 J

velocity of person = 7.67 m/s².

<h3>Explanation:</h3>

Given:

Weight of person = 70 kg

Lifted height = 3 m

1. Gravitational potential energy of a lifted person is equal to the work done.

$PE_g=W=m\times g\times h\\Acceleration due to gravity = g = 9.8 \ m/s^2 \\PE_g= m = m\times g\times h= 70\times 9.8 \times 3 = 2058\ kg.m/s^2 = 2058\ J$