We are going to calculate the amount of potential energy that the roller coaster has. Using PE = mgh, calculate the potential energy if the mass of the roller coaster is 1,650 kg and it is carrying six 100-kg people. The height of the roller coaster in step 1 is 13.1 meters. Remember g = 9.8 m / s 2. 2. Now find the step number where the box on the part is completely blue, which means that the total energy is completely kinetic. What step number is this? Calculate the kinetic energy of the roller coaster knowing the mass from question 1 and the speed is 16 m / s. Use the equation KE = 1⁄2 mv 2.

3. According to the law of conservation of energy, energy cannot be created or destroyed. Comparing your answers for the numbers 1 and 2, is energy being conserved? (It's okay if your numbers are a little off)

4. Explain why in step 4 there are both potential energy and kinetic energy. Why is there more potential energy than kinetic energy in this step?

What is the relationship between wind and ocean waves? question 17 options: wind moving at higher speeds will transfer more energy to the water, resulting in stronger waves. wind moving at higher speeds will transfer energy over a larger part of the ocean water, resulting in waves with a shorter wavelength. winds moving at higher speeds with cause water to move forward at faster rates, causing larger ocean waves. winds moving at higher speeds will affect deeper water, resulting in waves that move at a faster rate. how do temperature and salinity affect deepwater currents? question 15 options: as temperatures and salinity levels of water increase, the water rises to the surface where it creates currents as it moves to colder regions. they create changes in wind direction, moving denser water in the same direction as the wind and causing the deepwater circulation patterns found in the ocean. they equalize the forces on undersea currents caused by the coriolis effect as they replace more dense water with less dense water. they create density differences that cause dense deepwater currents to flow toward the equator where they displace less dense, warmer water above them.

Write a balanced equation showing the formation of copper (ii) nitrite from its elements

Which substance can be broken down by chemical means