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Romashka [77]
3 years ago
9

em 4:A water jet strikes normal to a xedplate. If diameter of the outlet of the nozzle is 8 cm,and velocity of water at the outl

et is 10 m/s, calculate force required to keep the plate in place [25 points]
Engineering
1 answer:
NeX [460]3 years ago
7 0

Answer:

The force required to keep the plate in place is 251.36 N

Explanation:

Force = pressure × area

diameter (d) of the outlet of the nozzle = 8 cm = 8/100 = 0.08 m

area = πd^2/4 = 3.142×0.08^2/4 = 5.0272×10^-3 m^2

velocity of water (v) at the outlet = 10m/s

height (h) of water at the outlet = v^2/2g = 10^2/2×9.8 = 100/19.6 = 5.102 m

pressure = height × density of water × g = 5.102×1000×9.8 = 49999.6 N/m^2

Force = 49999.6 N/m^2 × 5.0272×10^-3 m^2 = 251.36 N

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your friend's parents are worried about going over their budget for th month. Which expense would you suggest is NOT a need?
prisoha [69]

Things for entertainment aren't needs. For example, designer clothes, the new iPhone that just came out, fancy dining, that expensive shirt that has the same model somewhere cheaper, and sports cars are all wants, not needs.

Needs are like water, a shelter to live in, food, clothing, and running electricity. Water is essential for survival, since you could die of thirst in 2 days. A shelter will protect you from insects, weather, and uninvited guests. Living without food will kill you in 2 weeks, as you need food for energy and so let your body repair itself faster if you got injured. You need clothing to keep you warm and to cover your private parts. Running electricity is needed because electricity makes most of your needs easier to acquire.

I hope this helps! Good luck!

3 0
3 years ago
Ohm's law states that the current (I) in amps equals the voltage (E) in volts decided by the resistance (R) in ohm's. If you con
Hitman42 [59]

Answer:

1.14 * 10^-3  amperes

Explanation:

According to ohms law

V = IR   ---- ( 1 )

V = voltage  = 2.4 * 10^3 v

I = current  = ?

R = resistance =  2.1 * 10^6 Ω

from equation 1

I = V / R

 = ( 2.4 * 10^3 ) / (2.1 * 10^6 )

 = 1.14 * 10^-3  amperes

7 0
3 years ago
The jib crane is supported by a pin at Cand rod AB. The rod can withstand a maximum tension of 40 kN. If the load has a mass of
lakkis [162]

Answer:

The maximum allowable distance = 5 m

Explanation:

Data:

There will be three forces on the jib. Let the forces be denoted as:

C_{x}, C_{y} and the force on pole AB

To find the angle AB makes with the horizontal beam:

tan^{-1}(\frac{3}{4}) = 36.8699

The load has a mass of 2 000 kg then, the force will be:

F = mg, where g = 9.81 m/s²

  = 2000* 9.81 = 19 620 N

Breaking AB into its x and y coordinates:

AB_{x}=ABcos(36.8699)\\AB_{y} = ABsin(36.8699)

Then,

∑M_{c} = 0

0 = (4)(AB sin (36.8699) + 0.2 (AB cos (36.8699) - (5*19620)\\AB = 38 320. 3 N

∑F_{x} = 0\\C_{x} = AB cos(36.8699)\\C_{x} = 30 656.2 N

∑F_{y} = 0\\C_{y} + AB sin (36.8699) - 19 620 = 0\\C_{y} = - 3 372.18 N

so the components of the forces will be 30 656.2 N and - 3 372.18 N

6 0
3 years ago
Fixed rate mortgage offer:
Ket [755]
Use a fixed mortgage calculator on calculator soup!!!
4 0
3 years ago
Read 2 more answers
What is the major drawback to use whiskers as a dispersed agents in composites? a)- High price b)- Large length to diameter rati
artcher [175]

Answer: C) a&c

Explanation: Composite materials are the materials which are made up of the two or more material of different properties.They are usually having properties like high hardness,low in density,no dissolving into each other etc. Whiskers as a dispersing agent in composite materials are usually not preferred because they are expensive as well as they are not easy to disperse in the composite material.Thus option (c) is the correct answer.

7 0
3 years ago
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