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3 years ago

He first step in the problem-solving process is

Physics

1 answer:

german3 years ago

5 0

Answer:

To identify the problem

Explanation:

The first step in the problem-solving process is to identify the problem. It is not as simple as it sounds as different people may have different ideas of what the "problem" is. Clearly stating the problem and getting everyone involved to agree is an important first step.

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An old iron beam was coated with an unknown metal. there is a crack on the coating and it is observed that the iron is rusting a

IgorLugansk [536]

Based on the given description above about the metal that is being used for fractures, the old metal coating that was used before was made of TIN, and now, the metal that is used to repair fractures in order to avoid further corrosion is ALUMINUM. Hope this answer helps.

3 0

4 years ago

Draw a diagram that shows a 3-N force, a 5-N force, and an 8-N force acting on a single block that is in equilibrium. Can you

viva [34]

Explanation:

Since it is mentioned that the block is in equilibrium, this means the resultant force is zero, and all the forces cancel out each other.

You have to think it in a way so that, the forward force cancel out the backward force. Check the picture attached, on the forward side,

3N + 5N = 8N which cancel out the backward force of 8N

5 0

3 years ago

One day, after pulling down your window shade, you notice that sunlight is passing through a pinhole in the shade and making a s

baherus [9]

Given that,

Central maximum = 1 cm

Distance from the window shade to the wall =4 m

We know that,

The visible range of the sun light is 400 nm to 700 nm.

(a). We need to calculate the average wavelength

Using formula of average wavelength

$\lambda_{avg}=\dfrac{\lambda_{1}+\lambda_{2}}{2}$

Put the value into the formula

$\lambda_{avg}=\dfrac{400+700}{2}$

$\lambda_{avg}=550\ nm$

(b). We need to calculate the diameter of the pinhole

Using formula for diameter

$w=\dfrac{2.44\lambda L}{D}$

$D=\dfrac{2.44\lambda L}{w}$

Put the value into the formula

$D=\dfrac{2.44\times550\times10^{-9}\times4}{1\times10^{-2}}$

$D=0.537\ mm$

Hence, (a). The average wavelength 550 nm.

(b). The diameter of the pinhole is 0.537 mm.

7 0

4 years ago

A light wave is traveling through the air and then enter water. How will the light change?

Bogdan [553]

Answer:

A) It will move at a different speed (i.e slower)

B) A vacuum

Explanation:

For A), Light moves at a different speed as it starts to interact more with the particles in said medium (in this case, water) than the earlier medium.

For B), Light propagates using its own particle, i.e the photon whereas sound is more of a transmission of energy from the particles it originates from. In a vacuum, there are no particles to transfer energy to, that is why light can travel in a vacuum and sound cannot

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3 years ago

A boat moves through the water with two forces acting on it. One is a 2000 N forward push by the water on the propeller, and the

jekas [21]

Answer:

a). a=0.2 $\frac{m}{s^{2} }$