Áp suất tuyệt đối của một chất khí trong bình là 5000Pa, tính áp suất dư trong bình bằng đơn vị atm, biết 1atm = 100000Pa.​

Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k

Two resistors r1 and r2 may be connected either in series or parallel across an ideal battery with emf ε. we desire the rate of energy dissipation of the parallel combination to be 8.75 times that of the series combination. if r1 = 105 ω, what are the (a) smaller and (b) larger of the two values of r2 that result in that dissipation rate?

What is the major limitation to the light microscope?