Polycarbonate plastic has a density of 12 g/cm3. A photo frame is contructed feom two 3 I n sheets of polycarbonate. Each sheet measures 28 cm by 22 cm. What is the mass of the photo frame
What 3 l n sheets? Is that the thickness.If that is 3" (inch) thickness, convert to cm (2.54 cm to the inch).
volume = length x width x thickness
Then mass = volume x density. Substitute and solve for mass.
To find the mass of the photo frame, we need to first calculate the volume of the polycarbonate sheets, and then multiply it by their density.
Step 1: Calculate the volume of one sheet
The volume of a rectangular prism can be calculated by multiplying its length (l), width (w), and height (h). In this case, we are given the dimensions of the sheet (28 cm by 22 cm) and the height is assumed to be 3 inches or 3 * 2.54 = 7.62 cm.
Volume of one sheet = l * w * h = 28 cm * 22 cm * 7.62 cm
Step 2: Calculate the total volume of both sheets
Since we have two sheets, we need to multiply the volume of one sheet by 2.
Total volume = 2 * (28 cm * 22 cm * 7.62 cm)
Step 3: Convert the volume to grams
The density of polycarbonate is given as 12 g/cm^3. Therefore, to convert the volume to grams, we need to multiply it by the density.
Mass of the photo frame = Total volume * Density = 2 * (28 cm * 22 cm * 7.62 cm) * 12 g/cm^3
Now, plug in the numbers and calculate the mass.