A 4.7 kg object is pulled along a horizontal surface by a force of 34.0 N. If the acceleration of the object is 1.58 m/s2, what is the coefficient of friction between the
surfaces?

Light from a sodium lamp passes through a diffraction grating that has 1000 slits per millimeter. the interference pattern is viewed on a screen 1.000 m behind the grating. the first (m = 1) two bright yellow fringes that are visible are 0.7288 m and 0.7300 m from the central maximum. what are the wavelengths of these two fringes?

Properties seen when one one substance changes to another are known as properties

Avehicle accelerates from 0 to 30 m/s in 10 seconds on a straight road