Please Help? A cannonball is shot horizontally. It remains in the air for 5s and its range is 20m. If its launch velocity is doubled, for how long does it remain in the air?
a.20s
b.2.5s
c.5s
d.10s

What are segments of dna that code for a particular trait. a combination of dna and proteins make up what

Acapacitor is storing energy of 3 joules with a voltage of 50 volts across its terminals. a second identical capacitor of the same value is storing energy of 1 joule. what is the voltage across the terminals of the second capacitor?

You throw a baseball directly upward at time =0 at an initial speed of 14.9 m/s. what is the maximum height the ball reaches above where it leaves your hand? ignore air resistance and take =9.80 m/s2.