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2 years ago

A series RC circuit has a voltage of 24VAC and an impedance of 252ohms. What is the circuit current?

Engineering

1 answer:

Mumz [18]2 years ago

5 0

Answer:

the current in the circuit is 95.2 mA.

Explanation:

Given;

voltage in the circuit, V = 24 V

impedance of the circuit components, Z = 252 ohms

The current in the circuit is calculated as;

$I = \frac{V}{Z} \\\\I = \frac{24}{252} \\\\I = 0.0952 \ A\\\\I = 95.2 \ mA$

Therefore, the current in the circuit is 95.2 mA.

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Problem 34.3 The elevation of the end of the steel beam supported by a concrete floor is adjusted by means of the steel wedges E

Natasha2012 [34]

The image is missing, so i have attached it.

Answer:

A) P = 65.11 KN

B) Q = 30 KN

Explanation:

We are given;

The end reaction of the beam; F = 100KN

Coefficient of static friction between two steel surfaces;μ_ss = 0.3

Coefficient of static friction between steel and concrete;μ_sc = 0.6

So, F1 = μ_ss•F =0.3 x 100 = 30 KN

F2 = μ_ss•N_EF = 0.3N_EF

From the screen shot, we see that the angle is 12°

Sum of forces in the Y-direction gives;

F2•sin12 - N_EF•cos12 + 100 = 0

Rearranging gives;

N_EF•cos12 - F2•sin12 = 100

Let's put 0.3N_EF for F2 to give;

N_EF•cos12 - 0.3N_EF•sin12 = 100

Thus;

N_EF(0.9158) - 0.1247 = 100

N_EF(0.9781) = 100 + 0.1247

N_EF = 100.1247/0.9158

N_EF = 109.33 KN

Thus, F2 = 0.3N_EF = 0.3 x 109.33 = 32.8 KN

Wedge will move if;

P = (F1 + F2cos12 + N_EFsin12)

Thus;

P = 10 + (32.8 x 0.9781) + (109.33 x 0.2079)

P ≥ 65.11 KN

B) For static equilibrium, Q = F1

Thus, Q = 30 KN

3 0

3 years ago

The dot plot shows the number of cupcakes bought by each person who came to a bake sale.

Maslowich

The true statement about the dot plot is 1 has 4 and 0 dots.

Explanation:

after creating a Bar chart 4 is the right answer.
The highest among st all the other plots is 1 but 4 shows 3.
Taking an average from all the data points 3 comes to the right answer.
Median the central Mid-point is 3.
Mode also comes to 3.
It is skewed on the right due to the 1st one.
Skewed shows the data point either increasing or in decreasing.
There a to Bi- histograms which has two ups and downs.
The true statement has to be as Mean=Median=Mode is 3.

6 0

2 years ago

A city engineer knows that she will need $25 million in 3 years to replace toll booths on a toll road in the city. Traffic on th

Andreas93 [3]

Answer:

$1.38

Explanation:

She will spend $25 million in 3 years at 10% interest is a case of Future Value of Annuity.

Therefore,

FV = A*((1+r)^n-1)/r

Where A = 25,000,000

r=10%=0.1

n=3

FV= 25000000*((1+0.1)^3-1)/0.1

FV=25000000*(1.331-1)/0.1

FV=25000000*(0.331/0.1)

FV=25000000*3.31

FV=$82,750,000

So it is estimated that 20million cars passes through the toll per year

Therefore,

Toll per vehicle per year = 82750000/2000000

=$4.14

Toll for the duration of the project

=4.14/3 =$1.38

4 0

2 years ago

Milestone 1: Write code which asks for a length input until it gets an integer 10 or greater, then creates 2 arrays of this leng

jonny [76]

Answer:

import java.util.Scanner;

import java.lang.Math;

class Main {

public static void main(String[] args) {

int length = 0;

boolean lengthCheck = true;

Scanner scan = new Scanner(System.in);

while (lengthCheck == true)

{

System.out.println("Enter an array length (must be 10 or greater):");

length = scan.nextInt();

if (length >= 10)

{

lengthCheck = false;

}

int[] firstArray = new int[length];

int[] secondArray = new int[length];

System.out.print("\nFirst Array: ");

for (int i = 0; i < length; i++)

{

firstArray[i] = (int) (Math.random() * 100) + 1;

System.out.print(firstArray[i] + " ");

}

System.out.print("\n\nSecond Array: ");

for (int i = 0; i < length; i++)

{

secondArray[i] = (int) (Math.random() * 100) + 1;

System.out.print(secondArray[i] + " ");

}

System.out.println("\n");

boolean[] isAdded = new boolean[100];

int[] merge = new int[(firstArray.length + secondArray.length)];

int j=0;

for (int i = 0; i < length; i++)

{

if(!isAdded[firstArray[i] - 1]) {

merge[j] = firstArray[i];

j++;

isAdded[firstArray[i] - 1] = true;

}

if(!isAdded[secondArray[i] - 1]) {

merge[j] = secondArray[i];

j++;

isAdded[secondArray[i] - 1] = true;

}

System.out.print("Merged Array: ");

for (int i = 0; i < 2*length && merge[i] != 0; i++)

{

System.out.print(merge[i] + " ");

}

System.out.println("\n");

}

3 0

3 years ago

ferry boat steamed along at 8 mph through calm seas, passenger casey exercised by walking the perimeter of the rectangular deck,

olga_2 [115]

Tell me why i got this question got it right and now won’t remember but i’ll get back at you when i remember

6 0

2 years ago