Recent content by Vitalius6189

Thank you for help.

I shoulb be way more attentive. Sorry for bothering and thank you for help.

Homework Statement A lead bullet flies at a speed of 450 m / s and, striking a wall perpendicularly, melts completely. What was the bullet temperature before the blow, if for melting it consumes only half of its mechanical energy? Latent melting heat and the specific and melting temperature of...

Homework Statement An ice cube at the melting temperature that has a mass of 20 g, is struck by a bullet with a mass of 9 g, flying at a certain speed. Determine the speed of the bullet, if it is known that one third of his energy was consumed to break the ice, and the remainder to melt it...

bump for visibility

What is m? Is this some kinda new thing like volume or pressure or not? also now that i know m how do i find V3 and also i apologize for being obnoxious and wasting your time but... why is the line passing through the origin means that the equation is of the form P=m*V? again sorry for so many...

Can you please explain this to me? For example how did you get 2*10^5?

Anyone?

Homework Statement A mass of gas occupying volume V1 = 2 m3 at the pressure P1 = 4*10^5 Pa performs the cycle represented in the Figure that i have uploaded.What is the work of gas in this cycle, knowing that the pressure P2 = 10^5 Pa Homework Equations Work=1/2 * (P1 - P2) * (V1 - V3) The...