A river flows 1.5 miles an hour.(a) In what direction must a man swim in order to go straight across if his rate of swimming in still water is 2.5 miles an hour?(b) How long will it take him to cross the river if it is 1/ mile wide?
1. The official distance bet. home plate and second base in a baseball diamond is 120ft. Find the area of the official ball diamond and the distance bet. the bases.
2. A metal washer 1inch in diameter is pierced by a 1/2 inch hole. What is the area of one face of the washer.
I need to understand FLUX through a closed surface, say a sphere.
Following is a discussion on the Reviewer item titled: Solution to Problem 311 Torsion. Feel free to add your own comments!
Imagine a cube measuring 3 units on an edge, and having its total surface area painted blue. Without the aid of a figure, answer the following questions.
(A) How many times must you cut completely through the cube to make cubes which measure 1 unit on an edge?
(B) How many of the cubes of question (A) will have
(a) Three blue faces?
(b) Two blue faces?
(c) One blue face?
(d) No blue face?
(C) How many cubes are there in all?
1. (D^5 + D^4 − 7D^3 − 11D^2 − 8D − 12)y = 0.
2. (D^4 − 2D^3 + 2D^2 − 2D + 1)y = 0.
1. (4D + 1)^4 y = 0.
2. (6D − 5)^3 y = 0.
1. (2xD2 + 1)(3xD + 2)
2. (xD − x)(xD2 − 2)
How do you solve this? I have tried but could not get the answers:( someone please help me.
This is the question
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This is my working.
