Answer:
I believe it would be to lower the troop seats.
Explanation:
The number of revolutions the wheel would make will be 37 revolutions. The correct option is B.
<h3>What is circumference?</h3>
The perimeter of the circle is called the circumference of circle.
Given is the wheel diameter CD = Dwheel = 7.45 inches and Length required to cover =144 inches.
For one revolution, distance equal to circumference is moved.
1 rev = π x Dwheel
1 rev = π x 7.45inches
1 rev = 23.393 inches.
No of revolution to travel 540 inches,
= 144/23.393
=6.1557 rev
≈ 6.15 revolutions.
Thus, the correct option is B.
Learn more about circumference.
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Answer:
a) Number of atoms per unit cell for Ga = 4 atoms per unit cell
Number of atoms per unit cell for As = 4 atoms per unit cell
b) Volume density of Germanium in its unit cell = 4.35 × 10²² /cm³
Explanation:
GaAs has a number density of 4.42 x 10²² atoms/cm³ from literature.
Since GaAs is known to contain almost equal amounts of Ga and As.
Number density of Ga = Number density of As = 2.21 × 10²² atoms/cm³
Number density = Number of atoms in a unit cell/volume of the unit cell
Number of atoms in the unit cell = ?
Volume of the unit cell = (lattice parameter)³ = (5.65 × 10⁻⁸)³ = 1.804 × 10⁻²² cm³
Number of atoms per unit cell for Ga and As = number density × volume of unit cell = 2.21 × 10²² × 1.804 × 10⁻²² = 4 atoms/unit cell
b) Volume density = Number of atoms per unit cell/volume of unit cell
Germanium has 8 atoms per unit cell (from literature),
Volume of unit cell = (lattice parameter)³ = (5.65 × 10⁻⁸)³ = 1.804 × 10⁻²² cm³
Volume density = 8/(1.804 × 10⁻²²) = 4.35 × 10²² /cm³
Hope this helps!
Answer:
1. Mechanically actuated
2. Electrically actuated
3.Pneumatically actuated
Explanation:
The general method of actuation of brakes are as follows:
1. Mechanically actuated
In this method linkages or livers are used to produce the action of brakes.In this mechanical component is used to apply the brakes. Band brakes,shoe brakes etc are the example of mechanical breaks.
2. Electrically actuated
In this method magnetic coil is used to and this magnetic coil produce magnetic field due to this magnetic filed brakes apply.
3.Pneumatically actuated
In this method compressed air is supply from high pressure vessel and this pressurized air apply the break.
Stay at least one cars distance behind the vehicle ahead of you at all times