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Sever21 [200]
3 years ago
15

Mechanical Advantage may be calculated using all of the following except ___.

Chemistry
1 answer:
kotegsom [21]3 years ago
4 0
The only exception of calculating mechanical advantage is by multiplying resistance force by effort force. For example, in calculating the mechanical advantage of a lever, we consider its output and input forces. The equation would now be as follows:

Mechanical advantage = output force / input force
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2. Write the charge of each sub-atomic particle in the helium atom above.
algol [13]

Explanation:

The charge of a helium atom is zero

It is neutral because

The number of unit negative charges = number of unit positive charges

One unit negative charge = -1.6 x 10^(-19) which is basically the charge of an electron

One unit positive charge = +1.6 x 10^(-19) which is basically the charge of a proton

A helium atom has 2 protons and 2 electrons, so it is neutral

NOTE: an alpha-particle (He2+) is a charged helium atom it has 2 protons and 0 electrons. Charge of an alpha particle = +3.2 x 10^(-19).

7 0
3 years ago
A temperature of 50.9 °C is the same as ________ K.
musickatia [10]
324.05 degrees K
To get from C to K just add 273.15
8 0
3 years ago
What is a chemical change
LUCKY_DIMON [66]

A chemical change Is any change that results in the formation of new chemical substances .


I hope that's help and have a great night !

5 0
4 years ago
A variable that is not being directly tested during an experiment should be ____. changed
Kruka [31]

Controlled because there is always going to be a control group and an experimental group so that you could see the difference in the results

7 0
4 years ago
Briefly outline an experiment that could be done to determine if flame color is dependent on temperature. What would you expect
andrew-mc [135]

Answer:

Flame color is dependent on temperature.

Explanation:

Scientists have learned from various experiments which shows that red flames occurs when the temperature reaches to 980º up to 1,800º Fahrenheit. The colour of flames turn orange when the temperature reaches to 2,000º up to 2,200º Fahrenheit and when the temperature approaches 2,400º to 2,700º Fahrenheit, flames colour turns white.

6 0
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