Answer:
2.29g/cm3.
Explanation:
The following data were obtained from the question.
Mass of the oil = 172g
Volume of oil = 75cm3
Density =..?
Density of a substance is simply defined as the mass of the substance per unit volume of the substance. It is represented mathematically as:
Density = Mass /volume
With the above formula, we can calculate the density of the oil as shown below:
Density = Mass /volume
Density = 172g/75cm3
Density = 2.29g/cm3.
Therefore, the density of the oil is 2.29g/cm3.
Triple beam balance/scale to find mass, and graduated cylinder to find volume
Answer:
90J
Explanation:
The only time work is being done is when he lifts the box off the ground. Therefore, using the work formula, 2 x 45, you get 90J. Hope this helps someone.
Answer:
300 meters per second. That's equal to about 670 miles per hour.
Explanation:
Not only are air particles incredibly small, they are always moving. And they move fast. At room temperature, they are going about 300 meters per second. That's equal to about 670 miles per hour.
