Answer and Explanation:
Ferritic and Austenitic stainless steels are not heat treatable since the term "heat treatable" means that Martensite may be made to form in a relatively easy way after it has quenched the Austenite from an increased temperature.
Answer:
Tech B
Explanation:
There is a revolution of changes occur since the beginning of vehicle creation. Many technology came into existence and proposed us the best design, features and model. But as a machine, several fatigue or wear and tear can happen to this hence a proper maintenance is required in order for smooth running of your vehicle.
Many manufacturers have booklet that mention the proper maintenance interval for better running of your vehicle. As daily environment is changing, the maintenance requirements of a vehicle is also changing. New technology is bringing new features hence their maintenance rate as well as requirement also needs to be upgraded.
Answer:
The time constants 30 seconds and the can form an RC Charging circuit.
Explanation:
Time constant, τ, is measured in terms of τ = R x C, in seconds, where R is the value of the resistor in ohms and C is the value of the capacitor in Farads
If R = 150 kΩ = 150000Ω
and C = 200 μF = 0.0002 F
τ = 150,000 × 0.0002
<u>= 30 seconds.</u>
A capacitor, (C) connected in series with a resistor, (R) forms a RC Charging Circuit connected across a DC battery supply (Vs) via a mechanical switch, with transient time (time required to charge capacitor) = 5τ
Answer:
the orbit radius would be divided by 3
Explanation:
In order to orbit the planet, the centripetal force of satellite must balance the gravitational force between planet and satellite.
centripetal Force = Gravitational Force
(Ms)(V)²/r = (G)(Ms)(Mₓ)/r²
V² = GMₓ/r
where,
V = velocity of satellite
G = Gravitational Constant
Mₓ = Mass of Planet
r = orbit radius
but, G = gr²/Mₓ
Therefore,
V² = (Mₓ/r)(gr²/Mₓ)
V = √gr --------------------- equation (1)
where,
g = force of gravity
Now, for change in force of gravity:
V' = √g'r'
where,
g' = 3g
V' = V
Therefore,
V = √3gr' ---------------- equation (2)
Comparing equation (1) and equation (2), we get:
√gr = √3gr'
gr = 3gr'
r = 3r'
r' = r/3
<u>Hence, the orbit radius would be divided by 3.</u>
Answer:
D
Explanation:
The negative feedback is responsible for maintaining equilibrium (stability) in a system as it lessens effects, which is contrary to positive feedback which increases reaction and moves a system further away from equilibrium (stability), It does so by amplifying the effects of a product or event and occurs when something needs to happen quickly. e.g
- Insulin lowers down blood sugar levels, so when the body detects that it has too much sugar, the pancreas is prompted to release insulin and only stops when balance is achieved; hence, negative feedback.
- When there is a tear on the skin, a chemical is released. This chemical causes platelets in the blood to activate, hence they release a chemical which signals more platelets to activate, until the wound is clotted, positive feedback.
