1015
Chinese challenge in physics
We invite you to solve the puzzle on the exam in physics in high school Chinese.
Severe Chinese students have is you should have a globe and a map of the values of the gravitational acceleration, depending on the latitude and also good to know biology.
Question:
Bear fell into a pit trap depth of 19,617 meters. The time of his fall was 2 seconds. What color was the bear?
A. White (polar bear)
B. Brown
C. Black
D. Black-Brown (Malay Bear)
E. Gray (Grizzly)
The solution we publish below! Take the time to spy on and try to solve!))
Solution:
Using the classical formula S = gt2 / 2, we calculate that g (gravitational acceleration) = 9.8085 m / s2. Many think that this is the acceleration due to gravity at the poles. They are mistaken, because g on the North Pole is equal to 9,832, to more than the value we received. Even at the equator is equal to 9,780 g has.
Looking at the table of values, we see that the desired acceleration can be achieved at 44 ° latitude. Since in the southern hemisphere at this bears no parallel, the habitat we need Medway is 44 ° north latitude.
The problem is said that the bear fell into the pit trap, and this means that the hole was large enough to accommodate it. On land inhabited by not many more animals bear, so this trap has been made specifically for bears.
In addition, since trap was on the ground, we can be sure that this is the land bear, because Most land species of bears have poor eyesight, so worse distinguish traps.
In this case, the only options B and C may be true.
Pit depth of 19,617 meters, you can easily dig only in the soft soil.
Brown bears usually live on the hills and in the mountain forests. They are ferocious animals and the risk of hunting for them - great. But they are less valued than black bears. So for bear paws and bile are used mainly black bears.
Since habitat of the two species do not match, then we can conclude that the correct option C.
Severe Chinese students have is you should have a globe and a map of the values of the gravitational acceleration, depending on the latitude and also good to know biology.
Question:
Bear fell into a pit trap depth of 19,617 meters. The time of his fall was 2 seconds. What color was the bear?
A. White (polar bear)
B. Brown
C. Black
D. Black-Brown (Malay Bear)
E. Gray (Grizzly)
The solution we publish below! Take the time to spy on and try to solve!))
Solution:
Using the classical formula S = gt2 / 2, we calculate that g (gravitational acceleration) = 9.8085 m / s2. Many think that this is the acceleration due to gravity at the poles. They are mistaken, because g on the North Pole is equal to 9,832, to more than the value we received. Even at the equator is equal to 9,780 g has.
Looking at the table of values, we see that the desired acceleration can be achieved at 44 ° latitude. Since in the southern hemisphere at this bears no parallel, the habitat we need Medway is 44 ° north latitude.
The problem is said that the bear fell into the pit trap, and this means that the hole was large enough to accommodate it. On land inhabited by not many more animals bear, so this trap has been made specifically for bears.
In addition, since trap was on the ground, we can be sure that this is the land bear, because Most land species of bears have poor eyesight, so worse distinguish traps.
In this case, the only options B and C may be true.
Pit depth of 19,617 meters, you can easily dig only in the soft soil.
Brown bears usually live on the hills and in the mountain forests. They are ferocious animals and the risk of hunting for them - great. But they are less valued than black bears. So for bear paws and bile are used mainly black bears.
Since habitat of the two species do not match, then we can conclude that the correct option C.