If samples of silver and lead each had volumes to 1 cm^3 which sample would have the greater mass and what would the difference in the mass be

Lead would have greater mass than silver coz density of lead is higher 
density of lead is 11.3, silver is 10.49
so it would be 11.4/10.49 = 1.08
means that lead it would have 1.08 times mass of silver
to be exact 1 cubic cm of silver would have mass 10.49 gr and lead cube would have mass 11.4 gr

Answer: it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.explanation:   we have equation of motion ,where s is the displacement, a is the acceleration, u is the initial velocity and t is the time taken.average velocity = displacement/ time taken.average velocity = 10.69 miles/hr = 10.69*1.6*1000/(60*60) = 4.75 m/s4.75 = s/ts = 4. 1we also have acceleration = 2.18 m/s², initial velocity = 0 m/sso it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.