The first condition for equilibrium(平衡) ensures that a body(物体) should be in translational(平动的) equilibrium; the second, that it be in rotational(转动的) equilibrium.
举一反三
- A body in equilibrium (平衡) must be either at rest (静止) or in motion with constant velocity.
- An increase in market supply and an increase in market demand will result in A: A decrease in equilibrium price and an increase in equilibrium quantity B: A decrease in equilibrium price - the change in equilibrium quantity is indeterminate C: An increase in equilibrium quantity and the change in price is unclear D: all of above
- According to the equilibrium condition in a small open economy, When<br/>save exceeds investment, the economy has a trade balance: ( ) A: surplus B: deficit C: equilibrium D: any of the above
- Which of the following will definitely occur when there is an increase in demand for and a decrease in supply of milk? A: an increase in equilibrium quantity B: a decrease in equilibrium quantity C: a decrease in equilibrium price D: an increase in equilibrium price.
- If the equilibrium price of a good decreases and the equilibrium quantity of the good decreases, we can conclude that