Answer:
dz = 7.136 (answer)
Explanation:
given height for kate's kite = 50 ft (say y)
due to drift it move towards east = dx = 7 ft
string maximum length = 107 ft ( say z)
we have to find change in z
that is dz
it will form a right angle triangle for x , y and z where x is base y is height and z is hypotenuse
so we get according to Pythagoras Theorem
...............(i)
by derivative both side consider y as constant

from (i) equation

now put the value and find dz

after solving these we get
dz = 7.136 (answer)
A). It takes air in from outside the body.
new discoveries lead to new research.
Lise Meitner split the nucleus => nuclear energy research
The angle between the two vectors of the same magnitude would be 120 degrees to have the resultants the same.
answer: 120 degrees
With rising heat, the steam pressure inside the pot builds up beyond atmospheric pressure, allowing the temperatures to rise well above boiling point. This design enables to save time, energy, and resources. The temperature inside a pressure cooker can well go beyond 110° C, which reduces the time needed to cook food.