The weight of the heart of a cow whose weight is 1518 lbs. Answer in units of lbs.

The slotted link is pinned at o, and as a result of rotation it drives the peg p along the horizontal guide. compute the magnitude of the velocity and acceleration of p along the horizontal guide. compute the magnitudes of the velocity and acceleration of p as a function of θ if θ=(3t) rad, where t is measured in seconds.

When the force acting on an object points at least partially in the direction of the motion the work done is considered to be negative

Which is not true about oxygen-17 and oxygen-18?