Three guns are aimed at the center of a circle, and each fires a bullet simultaneously. the directions in which they fire are 120° apart. two of the bullets have the same mass of 5.79 x 10-3 kg and the same speed of 392 m/s. the other bullet has an unknown mass and a speed of 605 m/s. the bullets collide at the center and mash into a stationary lump. what is the unknown mass?

The unknown mass of the bullet is  

Explanation:

According to Newton's laws of motion, when a net external force acts on a body of mass  m , it results in change in momentum of the body and is given by:

Where:

P

is the linear momentum of the body

As a consequence, when there are no external forces acting on the body the total momentum remains conserved i.e.

Given:

For momentum along the y-direction to be zero, it is achieved when the equal masses are moving at angles of  

θ1=180°, θ2=60°, θ3=-60°

Therefore, from conservation of momentum along x - direction:

i dont think you are wrong for wanting to get even with someone who did you wrong.

(i'm an eye for an eye kind of person) but if this person hurt you in a sexual way, i dont suggest doing anything to him. he should be taken to the proper authorities, you could go to jail depending on what you do. if it was something small like your sibling took your spot on the couch, than yea, i would get even with him by taking one of his favorite snacks lol. but i dont suggest you doing anything illegal.

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2