Activity In this activity, you will use Hubble's law, v=Hod, and the definition of velocity, v= $, to calculate the approximate age of
the universe, t. Consult the math review e if you need help with scientific notation, exponents, or solving one-step
equations.
Part A
so that
To find time, the age of the universe, you must first isolate the variablet. Rewrite the velocity equation v=
you are solving for time.

(8%) problem 12. a bowling ball of mass mb 3 kg 's rolled down the lane with a velocity ofy-2/ m s lt strikes a single remaining pin mp 0.93 kg head on. after the collision the bowling ball has a velocity (in the same direction) of v2 1.1 m/s. = ▲ 33% part (a) write an expression for the velocity of pin in the horizontal direction after the impact, im ,, 33% part (b) what is the pins speed in ms? 33% part (c) assuming the coefficient of friction s μ,-0.1. how far in meters could the pin slide before stopping if it doesn't topple?