Xavier is creating a password for his computer. The password is 5 characters long. He can use uppercase and lowercase letters and numbers 0-9, but the characters cannot be repeated. How many different passwords could he create?
A 300
B) 310
C 776,520,240
D 916,132,832

he kicked it 10 feet straight up into the air? i think this works.

double the distance = divide strength by 4

the chart show the masses and velocities of two colliding objects that stick together after a collision.

according to the law of conservation of momentum, the momentum of the object after the collision is  

answer

1,500

kg • m/s.

pythagoras' theorem

square root (-5^2+9^2)

square root (25+81)

square root (106)

angle is tan^-1(9/5)

neg x, pos y