I have the m1=1139, v10=1.984,and vf=1022 but I need to find m2 and I don't know how I'm supposed to do that. The equation m1*v10=(m1+m2)*vf. Please help as soon as you can.

He viscosities of several liquids are being compared. all the liquids are poured down a slope with equal path lengths. the liquid with the highest viscosity will

Amachinist turns the power on to a grinding wheel, at rest, at time t = 0 s. the wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 96 rad/s. the wheel is run at that angular velocity for 40 s and then power is shut off. the wheel slows down uniformly at 1.5 rad/s2 until the wheel stops. in this situation, the time interval of deceleration is closest to:

Coal contains energy. a. light b. kinetic c. chemical d. mechanical