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Reil [10]
3 years ago
10

Make a sketch of a simple mechanically expanded brake and indicate the forces ​ ​ acting on the leading shoe when the brake is a

pplied.
Engineering
1 answer:
Pavel [41]3 years ago
4 0
Answer: sorry I just need points


Explanation
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A well-insulated rigid vessel contains 3 kg of saturated liquid water at 40oC. The vessel also contains an electrical resistor t
user100 [1]

Answer:

The final temperature is 111.66°C

Explanation:

The given conditions :-

i) Well insulated means no heat loss.

ii) Rigid vessels means volume remains same.

iii) Initial temperature ( T₁ ) = 40°C. = 273 + 40 = 313 K

iv ) Mass of water in vessel = 3 kg.

v) current drawn by resistor ( i ) = 10 ampere.

vi) Voltage applied ( V ) = 50 volts.

vii) The time for which resistor operating ( t ) = 30 minute = 30 * 60 = 1800 seconds.

Now we have to calculate heat developed by resistor in vessel.

Q = V * i * t  = 50 * 10 * 1800 = 900,000 J = 900 KJ.

Since it is a rigid container so the work done is zero.

Q = du    ( du - change in internal energy)

Q = m * C * dT      ( C = 4.186 KJ/KgK )

Q = 3 * 4.186 * (T₂ - T₁ )

900 = 12.558 * ( T₂ - 313 )

T₂ - 313 = 71.6674

T₂ = 384.6674 K

T = 384.6674 - 273 = 111.66°C

So the final temperature is 111.66°C.

3 0
3 years ago
Number pattern Write a recursive method called print Pattern() to output the following number pattern. Given a positive integer
lilavasa [31]

Answer:

See explaination

Explanation:

Code;

import java.util.Scanner;

public class NumberPattern {

public static int x, count;

public static void printNumPattern(int num1, int num2) {

if (num1 > 0 && x == 0) {

System.out.print(num1 + " ");

count++;

printNumPattern(num1 - num2, num2);

} else {

x = 1;

if (count >= 0) {

System.out.print(num1 + " ");

count--;

if (count < 0) {

System.exit(0);

}

printNumPattern(num1 + num2, num2);

}

}

}

public static void main(String[] args) {

Scanner scnr = new Scanner(System.in);

int num1;

int num2;

num1 = scnr.nextInt();

num2 = scnr.nextInt();

printNumPattern(num1, num2);

}

}

See attachment for sample output

3 0
3 years ago
Read 2 more answers
If a driver must drive when their signal lights or taillights aren't operating properly, they may instead signal by using their
Novosadov [1.4K]

Answer:

Left arm because the driver seat is on the left, so it would be easier, and safer, to use your left arm.

But, if you live in an area in which the driver seat is on the <em>right</em>, then it would be the right arm.

6 0
4 years ago
____ represents volume, while ___ represents velocity.
Jet001 [13]

Answer:

B. V represents volume, v represents velocity

5 0
2 years ago
Read 2 more answers
Water is flowing steadily through a 3-m long, 20 mm innerdiameter cast iron pipe. The water enters at a uniform velocity U and e
devlian [24]

Answer:

Hello your question is incomplete attached below is the complete question

answer :

U/r = R  = U_{max} [ 1 - (\frac{R}{R} )^2 ] = 0

∴ No slip condition is satisfied

Explanation:

Given that

Outlet velocity  U(r)  = U_{max} [ 1 - (\frac{r}{R} )^2 ]

<u>prove that the output velocity profile satisfies the no slip condition</u>

at no slip u = 0 ( i.e. at the pipe's inner surface )

at , r = R  ( inference  is at center )

hence  U/r = R  = U_{max} [ 1 - (\frac{R}{R} )^2 ] = 0

∴ No slip condition is satisfied

8 0
3 years ago
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