Anew statue of the town founder is erected in the park.  at the unveiling, the statue is a orange-brown copper.  after a year, the statue looks blue-green.  has a physical or chemical change taken place?

If an object with an initial temperature of 300 k increases its temperature by 1°c every minute, by how many degrees fahrenheit will its temperature have increased in 10 minutes? (a) 6°f (b) 10°f (c) 18°f (d) 30°f

The human body stores chemical energy from digested food. some of the chemical energy is converted into mechanical energy when the body moves. which statement best supported by this information

The difference between a red shift and a blue shift has to do with wavelength frequency. t or f