China intends to take advantage of their rivers by building the to generate electricity. a. huang dam c. three gorges dam b. xi dam d. yangtze dam

C. Three Gorges Dam
China intends to take advantage of their rivers by building the Three Gorges Dam to generate electricity. The Dam spans the Yangtze river and is the largest operating hydroelectric dam in terms of energy output.

The correct answer is C) Three Gorges Dam.

China intends to take advantage of its rivers by building the Three Gorges Dam to generate electricity.

The Three Gorges Dam has benefited the people in China in may ways. It has allowed flood control, it has increased power generation to supply electricity to many regions of the country, and it also has served as a touristic place, and a navigation place. These waters are connected to the Dongtin Lake and the JingJan River.

Recall that in the equilibrium position, the upward force of the spring balances the force of gravity on the weight is given below.

Explanation:

Measure unstretched length of spring, L.  E.g. L = 0.60m.

Set mass to a convenient value (e.g. m = 0.5kg).

Hang mass.

Measure new spring length, L'. E.g. L' = 0.70m.

Calculate extension: e = L' - L = 0.70 – 0.60 = 0.10m

Use mg = ke (in equilibrium weight = tension)

k = mg/e

Don't know what value you are using for example.  Suppose it is 10N/kg (same thing as 10m/s²).

k = 0.5*10/0.10 = 50 N/m

Repeat for a few different masses.  (L always stays the same.)

Take the average of your k values.