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HACTEHA [7]
2 years ago
6

A football player attempts a 30‐yd field goal. If he is able to impart a velocity u of 100 ft/sec to the ball, compute the minim

um angle θ. for which the ball will clear the crossbar of the goal. (Hint: Let m = tan θ)
Engineering
1 answer:
ki77a [65]2 years ago
4 0

Answer:2.53°

Explanation:The ball is undergoing a projectile motion that is why it has an angle

Range = (U^2 sin2a)/g

U= velocity of the ball=100ft/sec

Range of the ball(i.e horizontal distance the ball crossed)= 30yard=90ft

a=angle the ball is projected

g= acceleration due to gravity=9.8m/s^2

90=(100^2×sin2a)/9.8

90×9.8=10000×sin2a

882/10000=sin2a

0.0882=sin2a

Sin^-1 0.0882=2a

5.06=2a

a=5.06/2

a=2.53

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Where you live might affect how often you change your cabin air filter.<br> True<br> False
lara [203]

Answer:

False

Explanation:

Replace the cabin air filter every 15,000 to 25,000 miles, or once a year. Roberts recommends replacement every 30,000 miles, but adds drivers should check their owner's manual first

3 0
2 years ago
Part of the following pseudocode is incompatible with the Java, Python, C, and C++ language Identify the problem. How would you
hammer [34]

Answer:

The main problem is the incorrect use of assignment operator, the correct way to check if two number are equal is

num1==num2

Explanation:

Here we have a created a simple function which takes two input arguments num1 and num2. In the body of the function we have used if condition to find out whether the two number are equal or not. If condition is true then print that values are equal. If condition is false then print that values are not equal. In the driver code, we have called the function two times with different values of num1 and num2 to check if it is working correctly.

The implementation logic is same in all these programming languages, the only difference the syntax.

Python Code:

def checkEquality(num1, num2):

   if num1 == num2:

       print("The values are equal.")

   else:

       print("The values are not equal.")

Driver Code:

checkEquality(2,5)

checkEquality(3,3)

Output:

The values are not equal.

The values are equal.

C++ Code:

void checkEquality(int num1, int num2) {

   if (num1 == num2)

       cout<<"The values are equal."<<endl;

   else

       cout<<"The values are not equal."<<endl;

}

Driver Code:

#include <iostream>

using namespace std;

void checkEquality(int num1, int num2);

int main()

{

checkEquality(2,5);

checkEquality(3,3);

return 0;

}

Output:

The values are not equal.

The values are equal.

4 0
2 years ago
Write a function called arraySum() that takes two arguments: an integer array and the number of elements in the array. Have the
Oduvanchick [21]

Answer:

//Function is written using C++ Programming Language

// Comments are used for explanatory purpose

// The main method is not included

using namespace std;

// Declare arraySum with two arguments. The first represents the array name while the other

// Represents the number of elements

int arraySum(int arr[], int n)

{

int total = 0; // declare and Initialise total to 0

// Iterate through the array to calculate sum

for (int i = 0; i < n; i++) {

total += arr[i];

}

return total;

}

5 0
2 years ago
Two technicians are discussing relays. Technician A says that relays can fail because the relay winding is open. Technician B sa
hram777 [196]

Technician A says that relays can fail because the relay winding is open. Technician A is correct.

<h3>What is winding?</h3>

A single turn of the wound material, which is material wrapped or coiled around an object.

Poor contact alignment and open coils can also cause relays to malfunction.

The most important aspect impacting relay dependability is choosing the right relay type for a particular application. When incorporating them into circuits, several subpar design techniques are employed.

Hence, technician A is correct.

To learn more about the winding refer;

brainly.com/question/23369600

#SPJ1

4 0
1 year ago
Water is pumped from one large reservoir to another at a higher elevation. If the flow rate is 2.5 ft3 /s and the pump delivers
4vir4ik [10]

Answer:

2132hp  ed enregia

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Explanation:

dawdsawdsawdsawdsawdsawdsawdaas

6 0
3 years ago
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