subject
Engineering, 14.01.2020 18:31 afolmar2006

The mechanical advantage of a first class lever

a) is always greater than one
b) is always less than one
c) can be greater or less than one
d) is the input force divided by the output force

ansver
Answers: 2

Other questions on the subject: Engineering

image
Engineering, 04.07.2019 18:10, Tyrant4life
Draw the engineering stress-strain curve for (a) bcc; (b) fcc metals and mark important points.
Answers: 1
image
Engineering, 04.07.2019 18:20, sarah7984
Vibration monitoring this technique uses the noise or vibration created by mechanical equipment and in seme cases by plant systems to detemine their actual condtion. a)- true b)- false
Answers: 2
image
Engineering, 04.07.2019 19:10, babas97
What is a monomer? how do they form a ploymer from the view point of chemical bonding?
Answers: 1
image
Engineering, 04.07.2019 19:10, pedropaulofpedrosapp
Tom is having a problem with his washing machine. he notices that the machine vibrates violently at a frequency of 1500 rpm due to an unknown rotating unbalance. the machine is mounted on 4 springs each having a stiffness of 10 kn/m. tom wishes to add an undamped vibration absorber attached by a spring under the machine the machine working frequency ranges between 800 rpm to 2000 rpm and its total mass while loaded is assumed to be 80 kg a) what should be the mass of the absorber added to the machine so that the natural frequency falls outside the working range? b) after a first trial of an absorber using a mass of 35 kg, the amplitude of the oscillation was found to be 10 cm. what is the value of the rotating unbalance? c) using me-3.5 kg. m, find the optimal absorber (by minimizing its mass). what would be the amplitude of the oscillation of the absorber?
Answers: 3
You know the right answer?
The mechanical advantage of a first class lever

a) is always greater than one
b)...

Questions in other subjects: