The density of an object has the equation d = If an object has a mass of 2.5 g and a volume of 1.3 cm3, what is its density?
A. 3.8 g/cm3
B. 0.52 g/cm3
C. 1.92 g/cm3
D. 1.2 g/cm3
SUBMIT

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?

Greg drew a diagram to compare two of the fundamental forces. which labels belong in the areas marked x, y and z? gravitational force electromagnetic force x. attractive y repulsive z: infinite range x: infinite range y attractive z. repulsive x. always attractive y: infinite range z: attractive or repulsive x. attractive or repulsive y infinite range z: always attractive

Which of these metals are magnetic?