Assume the ground is uniformly level. If the horizontal component a projectile's velocity is doubled, but the vertical component is unchanged, what is the effect on the time of flight

Explanation:

Time of flight = 2 x u sinα / g where u sinα is vertical component of projectile's velocity u .

So Time of flight = 2 x vertical component / g

vertical component = constant

g is also constant so

Time of flight will also be constant .

It will remain unchanged .

The word that is described in the item above is letter "A. compound". Most compounds may be classified as either ionic or covalent. Ionic compounds are those that are formed due to transferring of electrons from one atom to the other while covalent compounds are formed by sharing of electrons.