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The efficiency is (output energy)/(input energy) = 340/400 = 85%

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What is the efficiency percentage of a mechanical device which requires 430 J of work to do 230 J of work in lifting a crate?

The efficiency of the mechanical device is calculated by dividing the output work (230 J) by the input work (430 J) and multiplying by 100. Therefore, the efficiency percentage would be (230 J / 430 J) * 100 = 53.5%.


What A mechanical device requires 420 j of work to do 230 j if work to lift a crate what is the efficiency of the device?

The efficiency of the device is calculated as the output work divided by the input work, then multiplied by 100 to get a percentage. In this case, efficiency = (230 J / 420 J) x 100 = 54.76%.


How can time be used to measure mechanical advantage?

Time can be used to measure mechanical advantage by comparing the time taken to perform a task with and without a mechanical advantage device. If a mechanical advantage device reduces the time required to complete a task, it indicates that the device has increased the efficiency of the task, thereby providing mechanical advantage.


What Lowers the efficiency of a mechanical device.?

Factors that can lower the efficiency of a mechanical device include friction between moving parts, poor maintenance leading to wear and tear, design flaws, inadequate lubrication, and operating in extreme conditions such as high temperatures or harsh environments.


A mechanical device reqiures 420 J of work to do 230 J of work in a cratewhat is the efficency of the device?

The efficiency of the mechanical device is calculated by dividing the useful work output by the total work input, then multiplying by 100 to get a percentage. In this case, the efficiency would be (230 J / 420 J) x 100% = 54.76%.

Related Questions

What is the efficiency percentage of a mechanical device which requires 430 J of work to do 230 J of work in lifting a crate?

The efficiency of the mechanical device is calculated by dividing the output work (230 J) by the input work (430 J) and multiplying by 100. Therefore, the efficiency percentage would be (230 J / 430 J) * 100 = 53.5%.


What A mechanical device requires 420 j of work to do 230 j if work to lift a crate what is the efficiency of the device?

The efficiency of the device is calculated as the output work divided by the input work, then multiplied by 100 to get a percentage. In this case, efficiency = (230 J / 420 J) x 100 = 54.76%.


If a device has an ideal MA of 4 but an actual MA of 3 what is the efficiency?

Efficiency can be calculated using the formula: Efficiency (%) = (Actual Mechanical Advantage / Ideal Mechanical Advantage) × 100. In this case, the efficiency would be (3 / 4) × 100 = 75%. Therefore, the device has an efficiency of 75%.


How can time be used to measure mechanical advantage?

Time can be used to measure mechanical advantage by comparing the time taken to perform a task with and without a mechanical advantage device. If a mechanical advantage device reduces the time required to complete a task, it indicates that the device has increased the efficiency of the task, thereby providing mechanical advantage.


What Lowers the efficiency of a mechanical device.?

Factors that can lower the efficiency of a mechanical device include friction between moving parts, poor maintenance leading to wear and tear, design flaws, inadequate lubrication, and operating in extreme conditions such as high temperatures or harsh environments.


What is your opinion Of the screw as a lifting device?

As an educator with technical knowledge, I view the screw as a highly efficient lifting device due to its mechanical advantage gained from the pitch of its threads. The screw converts rotational motion into linear motion, allowing for controlled and precise lifting operations. Its design provides stability and can handle heavy loads with minimal effort. Overall, the screw is a versatile and reliable lifting mechanism widely used in various industries.


A mechanical device reqiures 420 J of work to do 230 J of work in a cratewhat is the efficency of the device?

The efficiency of the mechanical device is calculated by dividing the useful work output by the total work input, then multiplying by 100 to get a percentage. In this case, the efficiency would be (230 J / 420 J) x 100% = 54.76%.


Does improving energy efficiency reduce longevity of a device?

That's hard to compare; improving energy efficiency often requires you to change a complete device for another device, for example, a light-bulb for a light-bulb that uses different technology. Whether the new device will live longer depends on the technology used.


What is the purpose of a throttling device in a mechanical system?

A throttling device in a mechanical system is used to regulate the flow of a fluid or gas by controlling the amount of pressure or flow rate. It helps to maintain a desired level of performance and efficiency in the system by adjusting the flow as needed.


How does the pivoting rod on a spring affect the overall functionality of the mechanical device?

The pivoting rod on a spring allows for movement and flexibility in the mechanical device, enabling it to adjust to different positions and absorb shocks or vibrations. This helps improve the overall functionality and efficiency of the device by providing stability and allowing for smooth operation.


Light pen is mechanical or optical input device?

Mechanical input device


What is definition of thermal efficiency of gas engine?

In general, efficiency is the ratio between the output of a device and the input, . For thermal efficiency, the input, , to the device is heat, or the heat-content of a fuel that is consumed. The desired output is mechanical work, , or heat, , or possibly both.From the first law of thermodynamics, the energy output can't exceed the input, so