1. Four forces of magnitudes 1 N, 2 N, 3 N and 4 N are acting in order along sides AB, CB, DC and DA of a rectangle respectively. The magnitude of
resultant is

Which of the following is not a physical property of mattera. melting pointb. heat of combustionc. viscosityd. boiling point

Does the distance travelled by an oscillating mass between times t=0 and t2 equal the displacement of the particle over the same time period if t2> t/2? hint: consider a sine wave starting at t1=0, then consider a closing wave starting at t1=0, for your explanation.

Name three populations commonly found in a prairie system