3,4,5, and 6 please i do not understand these questions If you can please write out, thank you will leave a good review

2 marks 3. In order to train pilots at experiencing 'g' forces, candidates are placed at the end of a 2.5 m-long steel beam and rotated in a horizontal plane. If a pilot experiences a centripetal acceleration of 78 m/s', at what speed is she rotating? Royal Bank of Canada Websi https:/www1.royalbank.com/sgw1/0 353 Royal Bank of Canada 2 marks https:/www1.royalbank.com 4. A 0.10 kg mass is attached to a string 0.75 m long and swings in a horizontal circle, revolving once every 0.80 s. Calculate the tension in the string as the mass revolves 3 marks Page 3 of 10 A racing car of mass 9.30 x 102 kg travels at 43.4 m/s around a horizontal circular track of radius 85.0 m. a) What is the centripetal force acting on the car? a )_ 2 marks b) If the coefficient of static friction between the car's tires and the road is # = 0.870, what is the maximum speed at which the car can travel in this circular path without sliding off the track? b ) 4 marks 6. Using values listed on the formula sheet, calculate the centripetal acceleration of the Earth towards the Sun