Answer:
the answer to your question is B
The answer is true, this is how dams work as the water goes through ot it pushed the turbines inside to generate electricity.
I hope this helps.
Answer:
A physicist
Explanation:
A physicist is one who deals with matter energy and how they are related
Amplifiers and watts and decibels <span />
Answer:
3.75 g/mL
Explanation:
Density can be calculated using the following formula:
Density = mass (g) / volume (mL)
You have been given the mass of the mineral sample (75 g). To find the volume, you need to determine the amount of space that the sample takes up when it is placed in the water. This can be done by subtracting the initial water volume from the final water volume.
Volume = Final - Initial
Volume = 40 mL - 20 mL
Volume = 20 mL
Now, you can calculate the density of the mineral sample.
Density = mass / volume
Density = 75 g / 20 mL
Density = 3.75 g/mL