The specific heat capacity of water is 4186 J/(kg K). What is the temperature change of 1 kg of water if 505 J of heat is added to the system

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?

Which sound characteristic is not affected by the relative motion of an object

Astudent pushes a 60-n block across the floor for a distance of 10 m. how much work was done to move the block