Timmy is swinging a ball on a string that is going in a circle with a radius of 5m. The ball has a period of 1.6s. What is the ball’s tangential velocity?

In automobile steering wheel is shown what is the ideal mechanical advantage blank? if the ama is eight what is the efficiency of the steering wheel?

It is really hard for me right know

The vapour pressure of benzene is 53.3 kpa at 60.6 °c, but it fell to 51.5 kpa when 19.0 g of a non-volatile organic compound was dissolved in 500 g of benzene. calculate the molar mass of the compound.