Sunspots are NOT generally: a. areas where intense magnetic field lines emerge through the surface of the sun. b. associated with an 11 year activity cycle on the Sun. c. Due to convective hurricane-like storms in the Sun's atmosphere d. associated with faculae and Plages. e. areas of low temperature compared to the surrounding gas.

Aballoon is rising vertically upwards at a velocity of 10m/s. when it is at a height of 45m from the ground, a parachute bails out from it. after 3s he opens his parachute and decelerates ata a constant rate 5m/s.when. (a) what was the height of the parachutist above the ground when he opened his parachute? (b)how far is the parachutist from the balloon at t=3s? (c)with what velocity does the parachutist hit the ground? (d)after how long does the parachutist hit the ground after his exist from the balloon?