All categories

3 years ago

What is the basic formula for actual mechanical advantage?

Engineering

1 answer:

slavikrds [6]3 years ago

3 0

Answer:

Mechanical Advantage Formula

The efficiency of a machine is equal to the ratio of its output to its input. It is also equal to the ratio of the actual and theoretical MAs. But, it does not mean that low-efficiency machines are of limited use. An automobile jack, for example, have to overcome a great deal of friction and therefore it has low efficiency. But still, it is extremely valuable because small effort can be applied to lift a great weight.

Also, in another way the mechanical advantage is the force generated by a machine to the force applied to it which is applied in assessing the performance of the machine.

The mechanical advantage formula is:

MA = FBFA

Explanation:

MAmechanical advantageFBthe force of the object

FAthe effort to overcome the force

You might be interested in

a buyer can purchase 70 screwdrivers ten 4-inch length twelve 6 inch length twenty 8-inch length are needed. how many heavy 24-i

jasenka [17]

Answer:

28 , 24-inch screwdrivers

Explanation:

The total number of screwdrivers that can be purchased is = 70

4 - inch length screwdrivers = 10

6- inch length screwdrivers = 12

8- inch length screwdrivers = 20

Total = 20 +12 +10 = 42

Remaining = 70-42 = 28

So, heavy 24-inch screwdrivers = 28

3 0

3 years ago

Which of the following best distinguishes between superficial design improvements and functional

Contact [7]

Answer:

Superficial design improvements are typically only trivial changes to a design, while functional design improvements can change the way a product or process is used to significantly enhance performance.

Explanation:

As a PC board designer, I would sometimes spend a certain amount of time making traces have shorter routes, or fewer layer changes or bends. (I wanted to make the layout "pretty.") In some cases, these changes are superficial, affecting the appearance only. In some cases, they are functional, reducing crosstalk or emissions or susceptibility to interference.

I deal with a web site that seems to be changing all the time (Brainly). In many cases, the same information is rearranged on the page—a superficial change. In other cases, the information being displayed changes, or the way that certain information is accessed changes. These are functional changes. (Sometimes, they "enhance performance," and sometimes they don't, IMO.)

In short ...

Superficial design improvements are typically only trivial changes to a design, while functional design improvements can change the way a product or process is used to significantly enhance performance.

8 0

2 years ago

Please help me bro come on

melomori [17]

Answer:

12

Explanation:

5 • 3 = 15
3 • 3 = 9
4 • 3 = 12

6 0

3 years ago

Read 2 more answers

Which of the following is/are FALSE about refining aluminum from the ore state (mark all that apply) a)- A blast furnace is used

Anastasy [175]

Answer:

The options a)- A blast furnace is used and d)-Coke is used to produce the heat are FALSE.

Explanation:

Aluminium is a chemical element and the most abundant metal present in the Earth's crust. An aluminium ore is called bauxite. Aluminium is extracted from its ore by the process of electrolysis, called the Hall–Héroult process. The extraction of aluminium is an expensive process as it requires large amount of electricity. The bauxite is purified to produce aluminium oxide. Then, aluminium is extracted from the aluminium oxide.

Therefore, the refining of aluminum from its ore does not involve the use of a blast furnace and coke to produce heat.

8 0

3 years ago

Reference Parameters (returning multiple values): Write a C++ function that converts standard time to military time. Inputs incl

valkas [14]

Answer:

Code is given as below:

Explanation:

#include <iostream>

using namespace std;

//function prototype declaration

void MilitaryTime(int, int, char, int &, int &);

int main()

{

//declare required variables

int SHour, SMin, MHour, MMin;

char AorP;

//promt and read the hours from the user

cout<<"Enter hours in standard time : ";

cin>>SHour;

//check the hours are valid are not

while(SHour<0 || SHour>12)

{

cout<<"Invalid hours for standard time. "

<<"Try again..."<<endl;

cout<<"Enter hours in standard time : ";

cin>>SHour;

}

//promt and read the minutes from the user

cout<<"Enter minutes in standard time : ";

cin>>SMin;

//check the minutes are valid are not

while(SMin<0 || SMin>59)

{

cout<<"Invalid minutes for standard time. "

<<"Try again..."<<endl;

cout<<"Enter minutes in standard time : ";

cin>>SMin;

}

//promt and read the am or pm from the user

cout<<"Enter standard time meridiem (a for AM p for PM): ";

cin>>AorP;

//check the meridiem is valid are not

while(!(AorP=='a' || AorP=='p' || AorP=='A' || AorP=='P'))

{

cout<<"Invalid meridiem for standard time. "

<<"Try again..."<<endl;

cout<<"Enter standard time meridiem (a for AM p for PM): ";

cin>>AorP;

}

//call function to calculate the military time

MilitaryTime(SHour, SMin, AorP, MHour, MMin);

//fill zeros and display standard time

cout.width(2);

cout.fill('0');

cout<<SHour<<":";

cout.width(2);

cout.fill('0');

cout<<SMin;

if(AorP=='a' || AorP=='A')

cout<<" am = ";

else

cout<<" pm = ";

//fill zeros and display military time

cout.width(2);

cout.fill('0');

cout<<MHour;

cout.width(2);

cout.fill('0');

cout<<MMin<<endl;

system("PAUSE");

return 0;

}

//function to calculate the military time with reference parameters

void MilitaryTime(int SHour, int SMin, char AorP, int &MHour, int &MMin)

{

//check the meredium is am or pm

//and calculate hours

if(AorP=='a' || AorP=='A')

{

if(SHour==12)

MHour = 0;

else

MHour = SHour;

}

else

MHour = SHour+12;

MMin = SMin;

5 0

3 years ago