3. Range of a projectile motion is maximum at angle of:
О O
А. 180°
В. 75°
С. 45°
D.90

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).

when heated, the valance electrons increased their speed and transferred the heat from electron to electron.   i just took the test.