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vova2212 [387]
3 years ago
15

What metals were the alchemist trying to produce ?did they succeed ?

Physics
2 answers:
xeze [42]3 years ago
7 0
The alchemists were trying to convert lead and copper into gold.
KIM [24]3 years ago
3 0

People once thought that ordinary lead and iron could be turned into gold. Hundreds of years ago, scientists called alchemists searched for ways to turn common metals into precious ones. The alchemists never succeeded in their quest, but the methods and procedures they developed laid the foundation for modern chemistry.

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Plot vector R 50m at an angle of 28 degrees wrtto the positive x axis. Find the x and y components of the vector and write it in
atroni [7]

The x and y-components of the vector R is 44.15i + 23.47j.

The given parameters:

  • Magnitude of vector R = 50 m
  • Position of vector R = 28 degrees

<h3>What is component vectors?</h3>
  • This is the representation of vectors in x and y-coordinates.

The x and y-components of the vector R is calculated as follows;

R_x = R \times cos(\theta)\\\\R_y = R \times sin(\theta)\\\\R_x = 50 \times cos(28) = 44.15 \ i\\\\R_y = 50 \times sin(28) = 23.47 \ j

R is a unit vector.

The plot of vector R is in the image uploaded.

Learn more about component vectors here: brainly.com/question/13416288

7 0
3 years ago
What method of identifying substances is the best way to identify a chemical reaction
sertanlavr [38]
Chemical reaction produces new substances.
If you can identify substances you look for some differents befor and after. if find then sure there was chemical reaction.
3 0
3 years ago
The principle of conservation of momentum is most similar to which of newton's laws of motion?
Effectus [21]
Newton’s Thrid Law, which states that for every reaction there is an opposite reaction.
6 0
3 years ago
The distance from earth to mars ranges between 780,000,000 km and 380,000,000 km depending on the time of the year. The speed of
ivann1987 [24]

Answer:

The minimum time, t = 21.11 m

Explanation:

Given,

The maximum distance between the Earth and Mars, d = 780,000,000 km

The maximum distance between the Earth and Mars, d = 780,000,000 km

The speed of the light, c = 300,000 km/s

The distance and speed of the object is related using the formula,

                           v = d / t

                            t = d / v

The minimum time it takes for data transmission is when the distance between the Mars and the Earth is at minimum.

Therefore,

                            t = 380,000,000 km / 300,000 km/s

                              = 1266.67 s

                              = 21.11 minutes

Hence, the minimum time it takes for data transmitted by the Mars Surveyor to reach earth, t = 21.11 minutes

6 0
3 years ago
A student gathered two boxes of the same size made of different materials glass and clear plastic. She placed them on a windowsi
ch4aika [34]

Answer:

dependent variable

Explanation:

8 0
3 years ago
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