Cientific calculator allowed | Hibak Abdullahi Newton's First and Second Laws of Motion:Question 2

A horizontal force of 24 N is being applied to a box on a
level surface. The box is accelerating at the rate of 2.0 m/s
against a frictional force of 14 N. What is the mass of the
box?

How many hydrogen (h) atoms are in one molecule of sulfuric acid, h2so4? (1 points) 1 2 4 7

Unpolarized light of intensity i_0=750w/m^2 is incident upon two polarizers. after passing through both polarizers the intensity is i_2=280w/m^2. (a) what is the intensity of the light after it passes through the first polarizer in w/m^2? (b) write an equation for the angle between the polarizers in terms of the initial (i_0) and final (i_2) intensities. (c) find the angle between the polarizers in degrees.

An architect plans to use solar energy to heat the next house he designs. what principle of absorption and infrared energy can be applied to the design of the new house? how could she apply to those principals?