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olganol [36]
3 years ago
14

Using Hooke's law, F subscript s p r i n g end subscript equals k increment x, find the elastic constant of a spring that stretc

hes 2 cm when a 4 newton force is applied to it.
A. 1/2 N/cm

B. 2 N/cm

C. 4 N/cm

D. 8 N/cm
Physics
2 answers:
Anarel [89]3 years ago
7 0

Answer:

b. 2N/cm

Explanation:

i took the test

sertanlavr [38]3 years ago
4 0
Let's rewrite Hook's law:
F=-kx
where
F is the force
k is the spring's constant
x is the compression/elongation of the spring

Neglecting the sign (since we are not interested in the direction of the force), we can re-arrange the formula and use the data of the problem to find the spring constant:
k= \frac{F}{x}= \frac{4 N}{2 cm}=2 N/cm

Therefore, the correct answer is B) 2 N/cm.
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Whitepunk [10]

Nitrogen

Explanation:

Adding one proton to a carbon atom makes Nitrogen.

A quick introspection on atoms:

  • An atom is made up of three fundamental particles.
  • They are protons, neutrons and electrons.
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  • Electrons are negatively charged.

The difference between an atom and another is the number of protons in them. This is the atomic number.

The periodic table of element is a list of elements arranged based on the number of protons they have. Every element on the table has unique number of protons which makes it differ from another.

  • Atoms do not readily lose their protons because they are held by nuclear forces in the nucleus of an atom.

When an element gains a proton, it becomes another element.

    Carbon has proton number of 6

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This is the proton or atomic number of nitrogen.

Learn more:

Atomic number brainly.com/question/5425825

#learnwithBrainly

4 0
3 years ago
Which experiment best shows water’s ability to act as a solvent? raise the temperature of water and record its boiling point. fr
IrinaVladis [17]
The vanishing of an ionic solid (like table salt) would be an example of acting like a solvent
8 0
3 years ago
Read 2 more answers
8. An airplane is flying at 200 m/s when it touches the ground at the airport. It has a constant negative acceleration, and slow
Temka [501]

Answer:

Explanation:

Given

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Final velocity = 4m/s

Distance S = 4000m

Required

Acceleration

Substitute the given parameters into the formula

v² = u²+2as

4² = 200²+2a(4000)

16 = 40000+8000a

8000a = 16-40000

8000a = -39,984

a = - 39,984/8000

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Pavel [41]

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P = Pressure

V = Volume

T = Temperature

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We start by calculating the volume of inhaled O_2 for it:

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V = 0.1386L

Our values are given as

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