What is the maximum height achieved if a 0.800 kg mass is thrown straight upward with an initial speed of 40.0 m·s–1? ignore the effect of air resistance.?

81.63 meters is the maximum height.

Explanation:

In order to calculate this you just have to remember the formula for the maximum height in projectile motion, in this case we dont have an angle because it is thrown straight upward, so we ecan take out the sine component of the formula:

So we just insert our values into the formula:

So the maximum height would be 81.63 meters.

the formula mass of a molecule or a compound is the sum of the atomic weights of the atoms in its empirical formula

(that's what i know about formula mass)

answer is: nuclear fusion produces elements that are heavier than helium.

nuclei combine to form a heavier nucleus, releasing energy.  

for example, fusion of hydrogen atoms at the sun.  

this fusion nuclear reaction is in the inner core of the sun and hydrogen (atomic number 1) is conveted into helium (atomic number 2).  

the inner core is the central region of the sun and all solar energy is produced in the core by nuclear fusion.