The equation of motion of a particle is s = t3 â 27t, where s is in meters and t is in seconds. (assume t ⥠0.) (a) find the velocity and acceleration as functions of t.

The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e

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

The magnitude of the poynting vector of a planar electromagnetic wave has an average value of 0.939 w/m^2 . the wave is incident upon a rectangular area, 1.5 m by 2.0 m, at right angles. how much total electromagnetic energy falls on the area during 1.0 minute?