A(n) 0.65 mole quantity of O2 originally at 85◦C is cooled such that it now occupies 4.0 L at 20.◦C. What is the final pressure exerted by the gas? 1. 1.1 atm 2. 6.2 atm 3. 0.27 atm 4. 3.9 atm 5. 0.92 atm 6. Not enough information is given

a.metals can become magnetic if they have many spinning electrons that create magnetic fields.d.only some metals are attracted by magnets; these metals are called ferromagnetic.

d.wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.

statement #3 on andre"s list is false.

when jerome paddle in flowing river towards east the net speed of jerome will increase

so the net speed of jerome will be given as

now the speed of paul will be same as it is given as he is running on the ground

so

so here we can say since the speed of jerome is more so he will win the race

now as we know the distance so the time difference is given as

so jerome will reach first and the time difference will be 203.55 s or 3.4 min

54 degrees incident angle = reflected angle

angle is from normal turned to line of ray