A train rumbles along the tracks at high speed. After it passes, the rail feels hot. What kind of energy transformation took place?

Please do not answer with something random just for points !

Simple machines can a. increase force only b. decrease force only c. increase or decrease force

Which is not true of the intertropical convergence zone? a) it features heavy precipitation b) it's where the trade winds collidec) it's a high-pressure zone with sinking air d) it is also known as the doldrums

Both speed and velocity measure how fast something is moving. however, since speed is not a it does not require a(n question 6 options: a) quantity , unit b) magnitude, unit c) scalar, direction d) vector, direction