If gas in a cylinder is maintained at a constant temperature t, the pressure p is related to the volume v by a formula of the form p = ((nrt)/(v-)/( in which a, b, n, and r are constants. find dp/dv.

The derivatife is zero, but your differentiating with respect to V so just treat the constants as numbers and differentiate accordingly

d(nRT/(V-nb))dV = -nRT/ (V-nb)^2

and

d (-an^2/V^2) dV = 2an^2/V^3

Hope this helps

Answer: it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.explanation:   we have equation of motion ,where s is the displacement, a is the acceleration, u is the initial velocity and t is the time taken.average velocity = displacement/ time taken.average velocity = 10.69 miles/hr = 10.69*1.6*1000/(60*60) = 4.75 m/s4.75 = s/ts = 4. 1we also have acceleration = 2.18 m/s², initial velocity = 0 m/sso it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.

This is the answer: body 1 + engine 2