Mass is the amount of what

Why doesn't an electromagnetic wave move as fast through a solid as it would a gas

A double slit apparatus is held 1.2 m from a screen. [___/4] (a) When red light (λ = 600 nm) is sent through the double slit, the interference pattern on the screen shows a distance of 12.5 cm between the first and tenth dark fringes.

Since the moon has less mass than earth, what happens to ojects on the moon

Characteristics of asteroids

A golf ball is struck at ground level. The speed of the golf ball as a function of the time is shown in the figure, where t = 0 at the instant the ball is struck. The scaling on the vertical axis is set by va = 21 m/s and vb = 32.3 m/s.

Which equations are balanced? Check all that apply. Mg3N2 + H2O → 3MgO + 2NH3 C3H8 + 5O2 → 4H2O + 3CO2 Zn + 2HCl → ZnCl2 + H2 3Ca (OH) 2 + 2H3PO4 → Ca3 (PO4) 2 + 6H2O 3H2SO4 + 2Fe → Fe2 (SO4) 3 + H2 4Al + 3O2 → 2Al2O3

Covert the names below into formulas in an equation then balance the equation 1.) Aluminum bromide plus chlorine yields aluminum chlorine plus bromine 2.) sodium phosphate + calcium chloride yields calcium phosphate + sodium chloride

In a inverse relationship, when one variable increases, the other

A chair of weight 75.0 N lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of F = 42.0 N directed at an angle of 38.0 ∘ below the horizontal and the chair slides along the floor.

A car travels 20 km west, then 20 km south. what is the magnitude of its displacement? A) 0 km B) 20 km C) 28 km D) 40 km