Answer:
mass= 0.1993 kg
Explanation:
Using the formula c = Q / (mΔT)
It is b. sodium because it is in group 1
Average acceleration = (change in speed) / (time for the change) .
Change in speed = (ending speed) - (beginning speed)
= (9.89 miles/hour) - (2.35 yards/second) = 26,839.2 ft/hr
Acceleration = (26,839.2 ft/hr) / (4.67 days) = 2,873.58 inch/hour²
Become more positive instead of negative