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bearhunter [10]
3 years ago
12

A close coiled helical spring of round steel wire 10 mm diameter having 10 complete turns with a mean radius of 60 mm is subject

ed to an axial load of 200 N. Determine the deflection of the spring. C = 80 kN/mm2.
Physics
1 answer:
kow [346]3 years ago
4 0

Answer:

The deflection of the spring is 34.56 mm.

Explanation:

Given that,

Diameter = 10 mm

Number of turns = 10

Radius_{mean} = 60\ mm

Diameter_{mean} = 120\ mm

Load = 200 N

We need to calculate the deflection

Using formula of deflection

\delta=\dfrac{8pD^3n}{Cd^4}

Put the value into the formula

\delta=\dfrac{8\times200\times(120)^3\times10}{80\times10^{3}\times10^4}

\delta =34.56\ mm

Hence, The deflection of the spring is 34.56 mm.

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The color of an object that the human eye senses depends on the color of light that shines on the object and the color of light
eduard

Answer:

B. the object reflects blue light more than it does any other color.

Explanation:

The color of an object as we see it corresponds to the wavelength of the light that the object reflects.

Let's consider an object on which white light is shone, as in this problem. If the object absorbs all the possible wavelengths of visible light, the object will not reflect any colour, so it will appear black. However, if the object reflects at least one color, the light of that color (reflected by the object) will reach us, so we will see the object in that color.

Therefore, in this problem, the object appears blue because it reflects blue light more than the other colors.

4 0
3 years ago
Read 2 more answers
A moving object has a kinetic energy of 150 j and a momentum with a magnitude of 30.0 kg•m/s. determine the mass and speed of th
SOVA2 [1]
To determine the answer to this item, we use two (2) equations.

Equation for kinetic energy:
   KE = 0.5 mv²

Equation for momentum:
  P = mv

From the second equation, we can deduced that,
  m = P/v
Substituting the known values from the given above,

  m = 30/v

Using this expression in the first equation,

  KE = 0.5 mv²;   150 = 0.5(30/v)(v²)

The value of v from the equation is 10 m/s. 

The mass is therefore calculated as such,
  m = 30/v = 30/10 = 3 kg

Hence, the answers are,

<em> Mass  = 3 kg</em>
<em> Velocity = 10 m/s</em>
4 0
3 years ago
The mass of a sulfur atom is 32.0 u, and the mass of a fluorine atom is 19.0 u. What is the mass of a mole of sulfur hexafluorid
givi [52]

<u>Answer:</u> The mass of sulfur hexafluoride is 146 u.

<u>Explanation:</u>

Mass of a mole of a substance is defined as the molar mass of that substance.

It is defined as the sum of every component each multiplied by the times they appear in that substance.

We are given:

Mass of sulfur atom = 32.0 u

Mass of fluorine atom = 19.0 u

The chemical formula for sulfur hexafluoride is SF_6

So, the molar mass of SF_6=[32+(6\times 19)=146u

Hence, the mass of sulfur hexafluoride is 146 u.

5 0
3 years ago
A wave has wavelength of 8m and a speed of 360 m/s. What is the frequency of the wave?
Naily [24]

Answer:

45~ \text{Hz}.

Explanation:

\text{Frequency,}~ f = \dfrac{v}{\lambda}\\\\\\~~~~~~~~~~~~~~~~~~=\dfrac{360~ \text{ms}^{-1}}{8~ \text m}\\\\\\~~~~~~~~~~~~~~~~~~=45~ \text s^{-1}\\\\\\~~~~~~~~~~~~~~~~~~~=45~ \text{Hz}

8 0
2 years ago
_________ transport is when something passes thru the cell membrane without any input of energy.
Schach [20]
Passive is the correct answer
7 0
3 years ago
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