(b) A uniform beam AB, 10m long and of mass 40kg, rests on two supports, one at A and the
other 2m from B. If a weight of mass 20kg is
attached to the beam at a point om from A, find
the reactions from the supports.​

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j ?

You are about to open a container of soy milk but notice that there are instructions to “shake well before serving.” the soy milk is most likely a

Consider two regions of space containing a static electric field, region a and region b. in region a the equipotential lines are more closely spaced than those in region b. what can be said about the relative strength of the electric field in the two regions? a) the electric field in region a is stronger th