PLZ HELP ME ON THIS QUESTION BELOW I NEED HELP i dont under stand it ill do a question after this with 50 points after you help me and a brainliest i just need help

Calculate the work done by an external agent during an isothermal compression of 1.00 mol of oxygen from a volume of 22.4 l at 10∘c and 1.0 atm pressure to 16.8l

A2k pendulum has a speed of 1 m/s at a height of 1/2 meter

Although longitudinal waves can travel through all media types what is the disadvantage of this type of wave transmission? a) he efficiency of he wave transmission is greatly diminished as the media becomes less dense b) the oscillation of one set of particles has a huge impact on neighboring particles c) particles become too close together as they bump into each other making it more likely to hit other particles down the line