There is one speed vcritical at which friction is not needed to keep the car on the track. What is that speed in terms of θ and R? Express your answer in terms of the variables R, θ, and the acceleration due to gravity g.

The desk has a weight of 75 lb and a center of gravity at g. determine the initial acceleration of a desk when the man applies enough force f to overcome the static friction at a and b. also, find the vertical reactions on each of the two legs at a and at b. the coefficients of static and kinetic friction at a and b are ms = 0.5 and mk = 0.2, respectively

What tightening torque should be used for a hexagonal head screw (not split-bolt) on a 250 kcmil conductor?

Carbon-14 is a radioactive element that undergoes beta decay. which force is responsible for allowing carbon-14 to become stable? electromagnetic gravitational weak nuclear strong nuclear