Answer: 131.14km per day
Explanation: since the second half of the terns migration takes 122 days we can assume that the full migration would take 244 days. using this we can divide the total distance by the total amount of days it takes (because speed = distance/time) which is 32,000/244, which would be 131.14
Answer:
Barometer is an instrument used to measure the atmospheric pressure.
Explanation:
- Torricelli did an experiment by filling a one meter long test tube completely with mercury. He took a beaker with some amount of mercury in it and inverted the test tube filled with mercury by closing its open end into the mercury of beaker ensuring that no bubble is trapped into the mercury of test tube during the process.
- This experiment was performed at normal temperature and pressure. Now some of the mercury from the test tube fell down into the beaker through the open end until the level becomes stagnant and this denotes the atmospheric pressure in terms of mercury column.
- There was a vacuum created at the top of the test tube called torricellian vacuum which holds back the remaining mercury height and the rest of the mercury level in the beaker is facing the atmospheric pressure.
Complete Question
The complete quetion is shown on the first uploaded image
Answer:
Explanation:
From the question we are told that
The mass of the fly is 
The extension of the web is 
The spring constant is mathematically evaluated as
substituting values
The frequency of vibration is
substituting values
Answer:
a) Species change over time; some traits become more common, others less. This process of change is driven by natural selection. The traits that become more common are the ones that are “adaptive” or “increase fitness” (that is, a creature's chances of living longer and producing more offspring)
Explanation:
because it is
Fc=mv^2/r so we get
2000kg*(25m/s)^2/(80m)= 15625N of force
hope this helps! Thank You!!
