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(a) Why are sound waves called mechanical waves ? List two practical applications of reflection of these waves. (b) A stone is dropped from the top of a tower 125 m high into a pond of water at the base
answered
Nov 13, 2019
Physics
middle-school
2
votes
129k
views
I have no idea how to do this.
answered
Oct 3, 2019
Mathematics
middle-school
4
votes
133k
views
The function f(x)=x-1/x+1 is never equal to zero
answered
Sep 30, 2019
Mathematics
middle-school
3
votes
94.6k
views
Over the first five years of owning her car, Gina drove about 12,700 miles the first year, 15,478 miles the second year, 12,675 the third year, 11,850 the fourth year, and 13,075 the fifth year. Find the
answered
Jul 1, 2019
Mathematics
high-school
4
votes
94.2k
views
Why did franklin list temperance as the first virtue
answered
Jun 27, 2019
English
middle-school
2
votes
82.9k
views
In The Old Man and the Sea, the fish is BEST understood as a symbol for _____. A. the man's life B. existence C. the bird D. food
answered
Mar 27, 2019
English
middle-school
2
votes
160k
views
The members of a gym use 98 towels every day. How many towels are used in 7 days?
answered
Nov 19, 2018
Mathematics
middle-school
5
votes
105k
views
What factors determine the magnitude of the electric force between two particles ? a. charge and distance b. mass and distance c. charge and density d. mass and charge
answered
Aug 18, 2018
Physics
high-school
3
votes
224k
views
What does yo te amo mean in 28
answered
Dec 9, 2017
Spanish
high-school
4
votes
131k
views
Where did the hebrew people originate? a. egypt b. canaan c. mesopotamia?
answered
Jan 21, 2017
Social Studies
high-school
3
votes
164k
views
"What is the average rate of change of f(x), represented by the graph, over the interval [-2, 2]? (See attachment) "
answered
Jan 12, 2017
Mathematics
high-school
3
votes
129k
views
Solving equations... 4+3x=5 What is X?
answered
Mar 27, 2015
Mathematics
high-school
0
votes
129k
views
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