1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
HACTEHA [7]
3 years ago
9

You need to build a prototype with machined parts that withstand a saline corrosive environment and temperatures above 200 degre

es F. Which materials can you use? (You can choose more than one chioce.) 1. Stainless steel 2. Mild steel 3. Polycaprolactone 4. Aluminum
Physics
1 answer:
kondor19780726 [428]3 years ago
5 0

Answer:

Stainless steel

Explanation:

I will try to order the solutions from the least correct to the most correct.

Since a temperature greater than 200 ° F is required, that is to say approximately 93 ° c, <em>Polycaprolactone</em> is the least indicated. Its melting point is approximately 60 ° C, so it would not serve the required application.

On the other hand we have<em> Untreated aluminum</em>, which although it has a melting point higher than the required one, without a zinc and magnesium treatment it will easily oxidize in a salty environment, so it cannot be used in this choice either.

We have to compare the two steels.

The<em> Mild Steel </em>has a better corrosion resistance than the previous ones, but in a long-term cycle it will end up full of corrosion and therefore its properties will be highly affected.

Finally, we have <em>stainless steel</em>, which, as the name implies, contains in some of its variations chromium, zinc or magnesium in its alloys, which makes it highly resistant to corrosion.

In addition its melting point is above 1500 ° c.

The best choice is stainless steel.

You might be interested in
What is the potential energy of a 2500 g object suspended 5 m above the earth's surface?
alexandr402 [8]

Answer:

Explanation:

Potential energy, which is the energy a body assumes at a position, can be calculated using the formula:

P.E = m × g × h

Where;

m = mass (kg)

g = acceleration due to gravity (10m/s²)

h = height (m)

7 0
3 years ago
Newton’s law of gravitation says that gravity is a mutually attractive force. Explain the following observation: A small object
Airida [17]

Answer: See below

Explanation:

The Earth attracts the falling object with the same intensity of gravity as the object attracts the Earth, according to Newton's law of gravitation. The displacement of the two bodies, however, is inversely proportional to their respective masses.

Example: The Earth attracts a ball that falls 3 metres from the ground, even though the ball's mass is insignificant in comparison to the Earth's. Similarly, the ball draws the Earth with the same power, but the Earth's mass is enormously more than the ball's. As a result, the Earth collides with a billionth of a millimetre ball (or even less). Restart the Earth's descent on the ball you'll never see again.

|-----------|

| ANSWERED  |

| BY        |

| SHORTHAX  |

|-----------|

(\__/) ||

(•ㅅ•) ||

/   づ

4 0
2 years ago
Read 2 more answers
Dan is gliding on his skateboard at 2.00 m/s . He suddenly jumps backward off the skateboard, kicking the skateboard forward at
miss Akunina [59]

Answer:

The velocity of Dan is 1.13 m/s.

Explanation:

Given that,

Initial velocity of skateboard and Dan = 2.00 m/s

Velocity of skateboard = 7.00 m/s

Mass of Dan m= 40.0 kg

Mass of skateboard M= 7.00 Kg

Suppose How fast is Dan going as his feet hit the ground?

We need to calculate the initial velocity of Dan

Using conservation of momentum

(m+M)v_{i}=mv_{f}+Mv_{f}

Put the value into the formula

(40.0+7.00)\times2.00=40.0\times v_{i}+7.00\times7.00

v_{i}=\dfrac{(40.0+7.00)\times2.00-7.00\times7.00}{40.0}

v_{i}=1.13\ m/s

Hence, The velocity of Dan is 1.13 m/s.

4 0
3 years ago
you are hiking along a river and see a tall tree on thhe opposite bank. You measure the angle of elevation of the top of the tre
Sidana [21]

Answer:

Explanation:

Let the height of the tree is y and the distance of tree from point B is x.

According to the diagram

tan61 = \frac{y}{x}

x = 0.55 y ..... (1)

tan49.5 = \frac{y}{50+x}

(50 + 0.55y) 1.17 = y ..... from equation (1)

58.5 + 0.644 y = y

0.356 y = 58.5

y = 164.3 ft

3 0
3 years ago
When talking on a phone, the voice is transformed into electrical energy. This energy passes over wires or is transmitted throug
timama [110]

Answer:

sound energy

Explanation:

3 0
2 years ago
Read 2 more answers
Other questions:
  • How do very long radio waves reach stations beyond the curvature of the Earth?
    8·2 answers
  • In a parallel circuit the current A stays in one path B splits and goes through two components C makes one circle
    9·1 answer
  • If a suspended object A is attracted to a charged object B, can we conclude that A is charged?
    7·1 answer
  • If a lamp has a resistance of 50 ohms and is operated by a p.d. of 10V, find the current flowing through it
    14·1 answer
  • A 20.5 kg ball moving at 38.5 m/s on a horizontal, frictionless surface runs into a light spring of force
    6·1 answer
  • A proton with charge 1.602 x 10^-19 C moves at a speed of 300 m/s in a magnetic field at an angle of 65 degrees. If the strength
    9·1 answer
  • PLS HELP I NEED IT
    9·2 answers
  • Due to the tilt of the Earth's axis,
    8·1 answer
  • (answer only if you know the answer or I'll report) Help me please solve it w steps​
    10·1 answer
  • When a 360 nF air capacitor is connected to a power supply, the energy stored in the capacitor is 1.85 x 10-5 J. While the capac
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!