Two blocks a and b have a weight of 10 lb and 5 lb , respectively. they are resting on the incline for which the coefficients of static friction are μa = 0.16 and μb = 0.23. determine the angle θ which will cause motion of one of the blocks. what is the friction force under each of the blocks when this occurs? the spring has a stiffness of k =

The ph of your mouth is very similar to that of stomach. true or false?

Agymnast dismounts off the uneven bars in a tuck position with a radius of 0.3m (assume she is a solid sphere) and an angular velocity of 2rev/s. during the dismount she stretches out into the straight position, with a length of 1.5m, (assume she is a uniform rod through the center) for her landing. the gymnast has a mass of 50kg. what is her angular velocity in the straight position?

Iron reacts with sulfur to form iron sulfide. if 60 grams of iron reacts with sulfur to produce 90 grams of iron sulfide, how much sulfur has been used in the chemical reaction?