Consider a balloon with volume V. It contains n moles of gas and has an internal pressure of P. The temperature of the gas is T. The balloon is placed in a freezer at temperature 0. 75T. The freezer is pressurized at 1. 25P. Which of these could be the final volume of the balloon?.

Which of the following represents a virtual image?

According to newtons universal law of gravitation, which would change the parh of the ball so it traces out widest curved path possible?

Alead ball is dropped into a lake from a diving board 5m above the water . it hits the water with a certain velocity and then sink with constant velocity in bottom . it reaches the bottom 5 second after it is dropped if g= 10m/s2 . find depth of the lake and average velocity of the ball ?