8. A piece of wire of length L cm is cut into two pieces. One piece, of length x cm, is made into a circle; the rest is made into a square. Denote by A(z) the sum of the area of the circle and the area of the square. (a) (5 points) Find Im which makes A(z) MINIMUM, and find A(I'm). (b) (5 points) Find am which makes A(z) MAXIMUM, and find A(IM).
8. A piece of wire of length L cm is cut into two pieces. One piece, of length x cm, is made into a circle; the rest is made into a square. Denote by A(x) the sum of the area of the circle and the area of the square. (a) (5 points) Find I'm which makes A(z) MINIMUM, and find A(1m). (b) (5 points) Find xm which makes A(x) MAXIMUM, and find A(zm).
A wire 48 cm long is cut into two pieces and each piece is bent to form a square. How long should each piece be to minimize the sum of the areas of the two squares? 19. A baseball is hit vertically at a velocity of 50 ft per sec. What is the maximum height that the ball will reach, and after how many seconds does the ball reach its maximum height? (The height after t seconds is given by...
Two pizzas with 8 inch and 16 inch diameters are each cut into 6 equal pieces. How does the area of each piece of the smaller pizza compare to the area of each piece of the larger pizza? [G-SRT.5] O 1/2 the size O 1/4 the size O 1/6 the size O 1/3 the size
A wire that is
24
centimeters long is shown below.
The wire is cut into two pieces, and each piece is bent and formed
into the shape of a square.
Suppose that the side length (in centimeters) of one square
is
x
, as shown below.
24cm
x
(a) Find a function that gives
the total area
Ax
enclosed by the two squares (in square centimeters) in terms of
x
.
=Ax
(b) Find the side length
x
that minimizes...
A piece of wire has a resistance R. It is cut into two pieces of equal length, and the pieces are twisted together parallel to each other. Part A What is the ratio of the resistance of the resulting wire to R?
b. A wire five meters in length is cut into two pieces, out of which a perfect square and a perfect circle are made. Find the maximum and minimum values the combined area of the circle and square can take. Give answer to 3 significant digits. (5 marks) Page 6 of 12
When a metal pipe is cut into two pieces, the lowest resonant frequency for one piece is 256 Hz and for the other is 440 Hz. What resonant frequency would have been produced by the original pipe? What was the length of the original pipe?
Cutting a stick A stick n inches long needs to be cut into n 1-inch pieces. Outline an algorithm that performs this task with the minimum number of cuts if several pieces of the stick can be cut at the same time. Also give a formula for the minimum number of cuts
Question 2-Page 39 #13 A piece of wire is cut into two pieces, A and B, stretched to the same tension, and mounted between two rigid walls. Segment A is longer than segment B. Which of the following quantities will always be larger for waves on A than for waves on B? A) Amplitude of the wave B) Frequency of the first harmonic C) Wave velocity D) Wavelength of the first harmonic