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Artyom0805 [142]
3 years ago
14

Why food cook faster with salt water than cook with pure water​

Physics
2 answers:
Shalnov [3]3 years ago
7 0
When salt is added, it makes it harder for the water molecules to escape from the pot and enter the gas phase, which happens when water boils
user100 [1]3 years ago
5 0

Answer:

oil heats faster

Explanation:

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A runner of mass 56.0kg runs around the edge of a horizontal turntable mounted on a vertical, frictionless axis through its cent
SCORPION-xisa [38]

Answer: -0.84 rad/sec (clockwise)

Explanation:

Assuming no external torques act on the system (man + turntable), total angular momentum must be conserved:

L1 = L2

L1 = It ω + mm. v . r = 81.0 kg . m2 .21 rad/s – 56.0 kg. 3.1m/s . 3.1 m  

L1 = -521.15 kg.m2/sec (1)

(Considering to the man as a particle that is moving opposite to the rotation of  the turntable, so the sign is negative).

Once at rest, the runner is only a point mass with a given rotational inertia respect from the axis of rotation, that can be expressed as follows:

Im = m. r2 = 56.0 kg. (3.1m)2 = 538.16 kg.m2

The total angular momentum, once the runner has come to an stop, can be written as follows:

L2= (It + Im) ωf = -521.15 kg.m2/sec  

L2= (81.0 kg.m2 + 538.16 kg.m2) ωf = -521.15 kg.m2/sec  

Solving for ωf, we get:

ωf = -0.84 rad/sec  (clockwise)

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Urban cities like Atlanta have to contend with a serious problem like pollution. Drivers in California are testing out a car tha
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2. There are several challenges with this type of vehicles in order for them to replace the fossil fuel driven ones. The big price is one of the factors, as the majority of the people can not afford these cars. Another problem is that these vehicles are not as fast as the fossil fuel driven ones, and lot of people enjoy fast driving, despite it not being safe. There are millions of vehicles out there on the roads, and changing all of them with hydrogen vehicles will take a lot of time, as lot of those vehicles are new ones, so the people will not be willing to just throw them away and leave them rot in their garages. In order for the change of the driving park to be accomplished, the prices should go down, the people to be more serious about the environment and its protection, and patience as several decades will probably be needed for a change like this to be competed.

3. The fuel celled cars are a viable answer to decrease the pollution, as they are not causing any pollution, but instead will stop the process of large emissions of carbon dioxide from the fossil fueled cars. While this method is a good one, it should not be the only, as on its own it can not have the desirable effect, but instead all the major polluters should be included in the process. The industry and the production of energy are one of the major polluters as well, so they will need to follow the example, as if they not, the problem will stay, considering that the industry is constantly growing and the demand for energy is constantly growing too.

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Which of the following absorbs the MOST heat energy?
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Darker is warmer C. Black objects.
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An object accelerates 1.5m/s2 when a force of 7.0 newtons is applied to it. What is the mass of the object?
Lorico [155]

The mass of an object that accelerates 1.5m/s² when a force of 7.0 newtons is applied to it is 4.67kg.

<h3>How to calculate mass?</h3>

The mass of an object can be calculated by dividing the force applied to the object by its acceleration. That is;

Mass = Force ÷ acceleration

According to this question, an object accelerates 1.5m/s² when a force of 7.0 newtons is applied to it. The mass of the object can be calculated as follows:

Mass = 7N ÷ 1.5m/s²

Mass = 4.67kg

Therefore, the mass of an object that accelerates 1.5m/s² when a force of 7.0 newtons is applied to it is 4.67kg.

Learn more about mass at: brainly.com/question/19694949

#SPJ1

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