A person walks a distance of 3.0 km due south and then a distance of 2.0 km due east.
If the walk lasts for 3.0 h find
(a) the average speed for the motion;
(b) the average velocity.

An electron and a proton have the same kinetic energy upon entering a region of constant magnetic field and their velocity vectors are perpendicular to the magnetic field. suppose the magnetic field is strong enough to allow the particles to circle in the field. note: you'll need to look up the masses for an electron and proton. 1) what is the ratio of the radii of their circular paths rp/re?

Aknife blade is a(n) a. lever b. screw c. wedge d. inclined plane

This punnett square shows the cross between two pants. one parent has round seeds (rr). and the other parent has wrinkled seeds (rr) which best describes their offspring as shown in this cross?