A hummingbird can flutter it's wings about 80 times per second.
4,800 divided by 60=80
Answer:
I would say that your best answer would be C.
I'm not too sure about this, but it's the best answer on there
Explanation:
Hope this helps you.
Answer:
The length of chain she is allowed is 1.169 ft
Explanation:
The given parameters are;
The linear density of the chain = 0.83 lb/ft
The weight limit of the chain she wants = 1.4 lb
The formula for linear density = Weight/length
Therefore, in order to keep the chain below 1.4 lb, we have;
Linear density = Weight/length
Therefore;
The maximum length she wants = Weight/(Linear density)
Which gives;
The maximum length she wants = 1.4 lb/(0.83 lb/ft) =1.169 ft
Therefore;
The length of chain she is allowed = 1.169 ft.
Answer: Distance is the actual position traveled by an object. Displacement is the shortest distance covered by the object.
Explanation:
Distance is the actual length covered by an object from one position to another. It is a scalar quantity. It cannot be negative.
Displacement is the shortest distance covered by the object. The displacement can be calculated by subtracting initial distance from the final distance. It is vector quantity. The displacement covered by an object can be zero, negative and positive.
Suppose, the boy travels from home to school then come back to his home. The distance between from his home to his school is 3 km.
In this case, the boy covers the total distance from home to school then to home is 6 km. But the displacement is zero because he comes to same position.