CLASSIFICATION
Compare the following characteristics of
invertebrates and vertebrates.
Overall complexity
General structure
Presence of a backbone
Where they live (in water or on land)
Simple/not complex
More complex
O
More complex body plan, have more complex organ systems
O
Simple body plan, might have a skeleton, simple circulatory or digestive systems
O
Live in water or on land
O
Have a backbone
No backbone

when insulating materials rub against each other, they may become electrically charged . electrons , which are negatively charged, may be 'rubbed off' one material and on to the other. the material that gains electrons becomes negatively charged. the material that loses electrons is left with a positive charge.

initial speed when it is dropped is 150 ft/s

now at the same moment the acceleration due to gravity is perpendicular to its velocity

so as we know that

now we have centripetal acceleration a = 32 ft/s^2 as its perpendicular to velocity

while tangential acceleration at the same moment will be zero

so

now radius of curvature is given as

so the radius of curvature just after it is dropped is 703.125 ft