Assignment:
Q1. If the sun which is 93,000,000 miles away away from Earth was to go out, how long would it take for us to know that this had happened? Light travels at a speed of 3 x 10^8 meters/second.
Q2. What would the density be (in g/cm^3) of a block that is 4 cm by 15 cm by 12 cm, and has a mass of 4.3 kg?
Q3. An object has a density of 8.96 g/cm^3. It has a mass of 405 grams. What is its volume?
Q4. An object has a density of 3.75 g/cm^3. It has a volume of 9.3 liters. What is its mass?
Provide complete and step by step solution for the question and show calculations and use formulas.