Ask question

Ask question

All categories

3 years ago

10

A horizontal jet of water strikes a vertical surface on a stationary cart that has a mass of 2.8 kg. The jet has a mass flow rat

e of 0.13 kg/s. The force required to hold the cart in place is 8N. What is the diameter of the nozzle? a. 1.6 mm b. 5.1 mm c. 3.4 mm d. 7.3 mm

1 answer:

Reil [10]3 years ago

6 0

Answer:

option a is correct answer i.e. d = 1.6 mm

Explanation:

From conservation principle

force by jet = force required to hold the jet

force by the jet is written as

$force = \dot{m}(v_{1}-v_{2})\$

force required to hold the jet = 8N

$\dot{m}(v_{1})\ = 8$

$\dot{m}=0.13 kg/s$

$v_{1} = 61.58 m/s$

we know that mass flow rate is given as

$\dot{m}=\rho Av_{1}$

substituting value to get required diameter of the nozzle

$0.13=1000*\frac{\pi }{4}d^{2}*61.58$

d = 1.6 mm

You might be interested in

An incandescent light bulb can be regarded as a resistor. If its power output is 100W, calculate the resistance of the light bul

stira [4]

Answer: $121\ \Omega$

$0.909\ A$

Explanation:

Given

Power $P=100\ W$

Voltage applied $V=110\ V$

Resistance of the bulb is given by

$P=\frac{V^2}{R}$

$100=\frac{110^2}{R}$

$R=\frac{12100}{100}$

$R=121\ \Omega$

Current drawn by the Power source is given by

$P=V\cdot I$

$I=\frac{P}{V}$

$I=\frac{100}{110}$

$I=0.909\ A$

8 0

4 years ago

What is thermodynamics system? Briefly explain (i) control mass system (ii) control volume system. Comment briefly on control ma

olga2289 [7]

Explanation:

Thermodynamics system :

Thermodynamics system is a region or space in which study of matters can be done.The system is separated from surroundings by a boundary this boundary maybe flexible or fixed it depends on situations.The out side the system is called surroundings.

Generally thermodynamics systems are of three types

1.Closed system(control mass system)

Only energy transfer take place ,no mass transfer take place.

2.Open system(control volume system)

Both mass as well as energy transfer take place.

3.Isolated system

Neither mass or nor energy transfer take place.

At steady state ,property is did not changes with respect to time.

3 0

3 years ago

For unrestrained cube made from linear, isotropic, homogeneous material the temperature increase causes strain in_____ direction

LenKa [72]

Answer: The answer is four; four

Explanation: This is because of the mixture of material used and the number of directions it causes strain I directly proportional to the number of times it causes stress.

7 0

3 years ago

How will you maintain the orderliness of your storage area 2pts?

fiasKO [112]

Explanation:

Label and group products. One would think that a general cleanup would be the first step, but no, it's not. ...Clean up the area. ...Put up demarcation lines. ...Stack properly. ...Keep the aisles, paths and ramps clear. ...Have all the safety signs in place.

4 0

3 years ago

what is the transfer function of the loaded filter? express your answer in terms of the variables r , l , rl , and s .

NISA [10]

Loaded, $H_{Loaded}$ (s) = $\frac{RR_{L} }{R+R_{L} } /(\frac{RR_{L} }{R+R_{L} }+SL)$ = $\frac{RR_{L}/L }{R+R_{L} } /(\frac{RR_{L} /L}{R+R_{L} }+S)$ is the loaded filter's transfer function.

A graded filter that, by virtue of its weight and permeability, stabilises the foot of an earth dam or other construction when it is installed at the base of that structure.

Air filters with depth loaded are made to achieve precisely that. They add particles gradually to create air passageways, reducing constriction. You may save time and money by using filters that last longer thanks to them. The bigger particles are caught at the filter's beginning, while the smaller particles are caught as it gets closer. This is intended to avoid rapid surface loading, hence facilitating more airflow. This enables longer-lasting filtration as well.

On the other hand, surface loading filters catch every particle that is on its surface. No matter how big or little the particles are, it doesn't care.

Learn more about Loaded here:

brainly.com/question/20039214

#SPJ4

3 0

1 year ago