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if a machine gives you a mechanical advantage of 4 and the input force is 10, what is the force output?

a.6 newtons
b. 2.5 newtons
c.40 newtons \

2. which of the following is an expression of power?

a. j/s
b. n
c. n-m

Two kilograms of air within a piston–cylinder assembly executes a carnot power cycle with maximum and minimum temperatures of 800 k and 300 k, respectively. the heat transfer to the air during the isothermal expansion is 60 kj. at the end of the isothermal expansion the volume is 0.4 m3. assume the ideal gas model for the air. determine the thermal efficiency, the volume at the beginning of the isothermal expansion, in m3, and the work during the adiabatic expansion, in kj.