A man is out roller skating and swerves to miss a crowd. If his curved path has a radius of 2.0 m and he experiences a centripetal force of 5.0 m/s2, what is his speed? 1.6 m/s

3.2 m/s

0.63 m/s

10. m/s

If 1 lb of fat is stored by the body for each 14.6×103kj of excess nutritional energy consumed, how long will it take this person to gain 1 lb?

How does the space charge width change with forward and reverse bias? also, calculate the space charge width for a reverse bias of 4v on a silicon pn junction at t = 300k and doping concentrations of na = 5x1015cm-3 , nd = 5x 1016 cm-3 .

1.what is where an object is located 2. what is how fast an objects speed is changing 3. what is how fast an object is moving