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Debora [2.8K]
3 years ago
5

What does snow fall from?

Engineering
1 answer:
Klio2033 [76]3 years ago
4 0

Answer:

Clouds

Explanation:

It is created by trapped dust and water.

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Can anyone explain how a Halbek Device works
dedylja [7]

Answer:

The Halbek Device can be used effectively on some weapons with practice and certain loadouts. ... This tends to help high-damage weapons or weapons with high multipliers

8 0
2 years ago
Read 2 more answers
The rate of flow through an ideal clarifier is 8000m3 /d, the detention time is 1h and the depth is 3m. If a full-length movable
Fittoniya [83]

Answer:

a) 35%

b) yes it can be improved by moving the tray near the top

   Tray should be located ( 1 to 2 meters below surface )

   max removal efficiency ≈ 70%

c) The maximum removal will drop as the particle settling velocity = 0.5 m/h

Explanation:

Given data:

flow rate = 8000 m^3/d

Detention time = 1h

depth = 3m

Full length movable horizontal tray :  1m below surface

<u>a) Determine percent removal of particles having a settling velocity of 1m/h</u>

velocity of critical sized particle to be removed = Depth / Detention time

= 3 / 1 = 3m/h

The percent removal of particles having a settling velocity of 1m/h ≈ 35%

<u>b) Determine if  the removal efficiency of the clarifier can be improved by moving the tray, the location of the tray  and the maximum removal efficiency</u>

The tray should be located near the top of the tray ( i.e. 1 to 2 meters below surface ) because here the removal efficiency above the tray will be 100% but since the tank is quite small hence the

Total Maximum removal efficiency

=  percent removal_{above} + percent removal_{below}

= ( d_{a},v_{p} ) . \frac{d_{a} }{depth}  + ( d_{a},v_{p} ) . \frac{depth - d_{a} }{depth}  = 100

hence max removal efficiency ≈ 70%

<u>c) what is the effect of moving the tray would be if the particle settling velocity were equal to 0.5m/h?</u>

The maximum removal will drop as the particle settling velocity = 0.5 m/h

7 0
3 years ago
A 24-volt DC battery is connected
butalik [34]
The answer will be : 0 volts.
4 0
2 years ago
employees should wear approved eye protection and proper clothing when using hand tools. true or false
Jobisdone [24]

Answer:

True

Explanation:

Wearing approved eye protection and proper clothing can reduce the chances of the employee getting injured during work.

5 0
2 years ago
A particle of given mass m 1kg, and charge q1 Couloumb, is placed in a magnetic field B 1k Tesla and thus is subjected to the ef
GalinKa [24]

Answer:

a) y = -0.05*x^2

b) Range shorter, Radius of circular/spiral motion shorter

Explanation:

Given:

- The charge q = 1 C

- Magnetic Field = 1 k Tesla

- Mass of the charge m = 1 kg

- Acceleration due to Lorentz Force a = q ( v x B ) / m

- Acceleration due to Drag Force a = - c*v

- The velocity of the charge @ x = y = 0, v_i = 10 i

Find:

- Equation of path of the charge in the given magnetic field

- Describe the path with addition of Drag Force.

Solution:

- First we will determine the magnitude and direction of the acceleration due to Lorentz Force as follows:

                                  a =  q ( v x B ) / m

- Input values:

                                  a =  1 ( 10 i x 1 k ) / 1 = -10 j

- We see that the acceleration acts in the negative y direction.

- To determine the path of the charge, we will use kinematic equation of motion for the particle as follows:

                                   x =  v_i*t

                                   y = 0.5*a*t^2

- Determine the parametric equations for displacements in x and y directions:

                                    x = 10*t

                                    y = -0.5*10*t^2

Combine the parametric equations to determine the equation of path followed by the charge:

                                    t = x / 10

                                    y = -0.5*x^2 / 100

                                    y = -0.05*x^2

- For the second case we have the acceleration due to drag force relation:

                                    a = - 0.1*v_i

                                    a = -0.1*10 i

                                    a = - i

- There is a deceleration component of drag force acting in x direction, The parametric equation would be as follows:

                                    x = 10*t - 0.5*1*t^2

                                    x = 10*t - 0.5*t^2

- From this we can see that the x coordinate increases at a decreasing rate. Hence, the range of the projectile like motion will decrease. The total amount of distance traveled by the charge in x direction will decrease.

-Hence, after sufficient amount of time the charge moves in a circular motion. The radius of the circular motion will be shorter as compared to when we neglect the acceleration due to drag force.

5 0
3 years ago
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