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kodGreya [7K]
4 years ago
12

What is an input force?

Chemistry
2 answers:
nataly862011 [7]4 years ago
6 0
Force is a pull or a push acting on a body at rest or in motion resulting from its interaction with another body. Input force is the force that you put on a machine while Output force is the force the machine exerts on an object. The output distance is when the output force moves the machine a certain distance while the input distance is when the input distance is when the input force moves the machine a certain distance.
Alchen [17]4 years ago
6 0

Answer: Option (D) is the correct answer.

Explanation:

When a force is applied by a person to a system then this force is known as input force.

It is also known as initial force that needs to be applied in order to start a machine.

For example, when a piston in a system is pressed inwards by a person then an input force is applied to the system.

Thus, we can conclude that an input force the force a person applies to a simple machine.

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Identify five items around your home that use SI units of measurement
geniusboy [140]

Answer & explanation:

SI units are the metric system and the most commonly used measurement system in the world. Some examples of these units you may find around your home are:

Pencil lead size measured in millimeters. (Ex. 0.7mm)

Microwaves, you put your food in for a number of seconds. Any other device used to time things also does this, such as a stopwatch.

A ruler or tape measure will measures in centimeters or meters usually.

A balance or scale may be used to measure mass in grams.

Solid products like antiperspirant, lipstick and other solid makeup products are usually measured in grams.

Solid foods such as butter are usually measured in grams.

Information about the contents of food found on the nutrition facts label are usually measured in grams or milligrams. (Ex. 3g of saturated fat)

7 0
4 years ago
Sulfur has 16 electrons and 6 valence electrons. what will its oxidation number be?​
natita [175]

Answer:

–2

Explanation:

Data obtained from the question:

Number of electron = 16

Valence electron = 6

Now, let us write the electronic configuration for sulphur. This is illustrated below:

1s2 2s22p6 3s23p4

From the above, we can see that sulphur will be needing 2 extra electrons to complete its octet configuration. Therefore, the oxidation number of the sulphur will be –2.

The minus sign indicate that the sulphur will accept 2 electrons to complete its octet configuration

5 0
4 years ago
Read 2 more answers
Lithium has two stable isotopes with masses of 6.01512 amu and 7.01600 amu. The average molar mass of Li is 6.941 amu. What is t
Dvinal [7]

Answer :  The percent abundance of Li isotope-1 and Li isotope-2 is, 6.94 % and 93.1 % respectively.

Explanation :

Average atomic mass of an element is defined as the sum of masses of each isotope each multiplied by their natural fractional abundance.

Formula used to calculate average atomic mass follows:

\text{Average atomic mass }=\sum_{i=1}^n\text{(Atomic mass of an isotopes)}_i\times \text{(Fractional abundance})_i   .....(1)

Let the fractional abundance of Li isotope-1 be 'x' and the fractional abundance of Li isotope-2 will be '100-x'

For Li isotope-1 :

Mass of Li isotope-1 = 6.01512 amu

Fractional abundance of Li isotope-1 = x

For Li isotope-2 :

Mass of Li isotope-2 = 7.01600 amu

Fractional abundance of Li isotope-2 = 100-x

Average atomic mass of Li = 6.941 amu

Putting values in equation 1, we get:

6.941=[(6.01512\times x)+(7.01600\times (100-x))]

By solving the term 'x', we get:

x=694.048

Percent abundance of Li isotope-1 = \frac{694.048}{100}=6.94\%

Percent abundance of Li isotope-2 = 100 - x = 100-6.94 = 93.1 %

6 0
3 years ago
3. What do we call atoms of the same elements with different mass numbers?
Talja [164]

Answer:

Isotopes

Explanation:

We call atoms of the same elements with different mass numbers isotopes.

7 0
3 years ago
Which best describes the current model of the atom?
slavikrds [6]

Explanation:

i think the answer might be D

8 0
3 years ago
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