Calculate the aceleration of a vehicle wich start with a zero meter per second, and acelerates to 34 m/s in 21 s. HELP PLSSS

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

Suppose while hauling rocks, you accidentally drop one. it breaks apart in flat, planar sections. what type of rock did you just drop? 20 points

Which best describes how fluids change as they travel through different portions of the convection currents? they change to solids at the outer portion of the convection currents. they change to solids at the inner portion of the convection currents. they become more dense at the outer portion of the convection currents. they become more dense at the inner portion of the convection currents