John walks 1.00 km north, then turns right and walks 1.00 km east. his speed is 1.50 m/s during the entire stroll. a) what is the magnitude of his displacement, from beginning to end? b) if jane starts at the same time and place as john, but walks in a straight line to the endpoint of john's stroll, at what speed should she walk to arrive at the endpoint just when john does?

Avoltage source vs = 10 v is in series with a resistor of 10 kohm. if the source transformation theorem is applied, what will the value of the current source be in ma ?

Agas initially at p1 = 1 bar and occupying a volume of 0.5 liter is compressed within a piston–cylinder assembly to a final pressure p2 = 4 bar. (a) if the relationship between pressure and volume during the compression is pv = constant, determine the volume, in liters, at a pressure of 3 bar. (b) repeat for a linear pressure–volume relationship between the same end states. reference

Determine the fraction of the magnitude of kinetic energy lost by a neutron (m1 = 1.01 u) when it collides head-on and elastically with a target particle at rest which is 21h (heavy hydrogen, m = 2.01 u).