A 10.1 m long, 0.0023 m radius copper wire is stretched between two poles. By landing at the center point of the wire, a bird sends a small pulse out in both directions. The pulses reflect at the ends and arrive back at the birds’ location 2.2 seconds after it landed. Determine the tension (in Newtons) in the wire.
We take the density of copper as 8900 Kg/m3

Calculate the heat capacity per object when the total energy is 4 quanta. (think of this in terms of increasing from 3.5 quanta of energy in the system to 4.5 quanta of energy in the system, if that were possible.) c4 = __ j/k/object

Heterogeneous mixture with larger particles that never settle is

Aball thrown by ginger is moving upward through the air. diagram a shows a box with a downward arrow. diagram b shows a box with an upward arrow. diagram c shows a box with a downward and upward arrow equal in size. diagram d shows a box with a downward and upward arrow with the downward arrow larger in size. which force diagram represents the forces on the ball? you may neglect the effects of air resistance.