PHYSICS HIGH SCHOOL

How and why can two lethal elements combine to form an essential
compound for health?

Answers

Answer 1
Answer:

Answer:

Two lethal elements can combine to form an essential compound for health by undergoing a chemical reaction such that the properties of the individual elements are different from the properties of the product and are no more lethal

Example Mercury and Sulfur combine to form cinnabar which is used as a medicine to relieve pain, antiseptic, and to cure diseases

Mercury and sulfur combines because mercury readily combines with sulfur at high temperatures

Explanation:

Mercury is a lethal element that also has harmful effects on the neurological system

Sulfur is lethal when too much of it is consumed

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A student wants to build a circuit with four light bulbs and one bell. A student wants to place a switch in the circuit so that only one light will still be on and the bell will still ring when the switch is opened

Answers

Answer:

we have an circuit with two branches in parallel,

* One formed by the switch and three light bulbs

* Another branch formed by a light bulb and the bell

Explanation:

For the construction of the circuit, let us analyze the conditions given, of the 4 light bulbs, only one should remain lit when the dapple is opened, so we must place three light bulbs and the switch in one branch and the other light bulb in the other branch.

For the bell to sound with the abort circuit it must be on the branch where the single bulb is.

Therefore we have an circuit with two branches in parallel,

* One formed by the switch and three light bulbs

* Another branch formed by a light bulb and the bell

This is collection of quantitative data made by comparing a quantity with a standard unit. In science, the units are metric.

Answers

Its called a measurement

In the  daily life in the united states we don't usually use the metric system , but since in science every measurement have to be precise and accurate, metric system is a better standard of measurement

Displacement vectors of 5 km north, 3 km east, 2 km south, and 3 km west combine to a total displacement of ___

Answers

The answer is A. 3 km north

Displacement (D) is the shortest distance from the initial to the final position.
In this example, distance is 5 km north - 2 km south = 3 km north (look at the image).

The half-life of carbon-14 is 5,730 years. How many grams of parent material will remain from a 120-gram sample of carbon-14 after 2 half-lives?

Answers

After 2 half lives, one half of one half of the original material remains. That's one fourth. One fourth of 120 grams is 30 grams remaining.

The air pressure at the ocean surface a few miles from the shoreis most likely

Answers

The air pressure is most likely lower.

How to covert ma into amphere?

Answers

1 ampere = 1,000 milliamperes

1 A = 1,000 mA

To calculate the number of Amperes, divide the number of milliamperes by 1,000.
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