Question 3 (2 points) The generic equation suggested by a graph showing a half-parabola is which of the following? (2 po
a
y = mx + b
b
y = kx2
y = k (1/x)

What is the acceleration of a spaceship that is initially at rest and then speeds up to 220 m/s in 20 seconds

Red light strikes a metal surface and electrons are ejected. if violet light is now used with a 10% greater intensity, what will happen to the ejection rate (number of ejected electrons per second) and the maximum energy of the electrons? a) greater ejection rate; same maximum energyb) same ejection rate; greater maximum energyc) greater ejection rate; greater maximum energyd) same ejection rate; same maximum energye) none of the above answers are correct

Which missing item would complete this alpha decay reaction ? > 228/88ra + 4/2he a.224/96 rn b. 232/90 th c. 230/92 u d. 235/92 u