Answer:
(a)
(b)
(c) 4.43 m/s
(d) 2 m/s
Explanation:
Using the attached image, point 4 is point A
Since potential energy PE=mgh where m is mass, g is acceleration due to gravity and h is height.
The height is 100cm equivalent to 1 m
Substituting 2g equivalent to 0.002 Kg for m, for g and 1 m for h we obtain
(b)
Kinetic energy is given by
KE=0.5mv^{2} where v is the velocity, m is mass and KE is kinetic energy
Substituting m for 0.002 Kg and
(c)
As already illustrated in part b
(d)
From the law of conservation of energy
Energy at point A equals energy at point C
An animal might use more than one type of clue to find its way due to change in the way one mechanism used to work.
Different animals have different senses heightened, that lets them use different mechanisms to navigate. Some of the mechanism include remembering landmarks, solar navigation, star navigation, magnetoreception, olfaction, gravity receptors etc.
For example, a bird using landmark to navigate will find it hard to navigate in the same way again if the landmark has been changed. So it has to depend on other senses such as olfaction or magnetoreception to navigate.
Therefore, an animal might use more than one type of clue to find its way due to change in the way one mechanism used to work.
To know more about Animal navigation
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Answer:
84kliometers
Explanation:
divide one hundred and sixty eight kilo meters by two hours
Answer:
Western north america
Explanation:
extending from southern British Columbia through Washington and Oregon to North Calfirona