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Answers by Leyou

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A police car is driving down the street with it's siren on. You are standing still on the sidewalk beside the street. If the frequency of the siren is 1500 Hz and the car is moving towards you at 15 m/s,
answered Sep 27, 2020
5 votes
234k views
Match the following terms to their definitions. a. empirical evidenceb. independent variable c. dependent variable d. controle. hypothesis1. the variable that changes in response to experimentation 2.
answered Feb 10, 2020
4 votes
176k views
The mass of a grain of sand is about 10−3 gram. About how many grains of sand are in the bag of sand? the bag has 10kg of sand
answered Sep 2, 2019
6 votes
169k views
Occurs when no rain fall for a long period of time is what Science
answered Jun 1, 2019
6 votes
41.7k views
On September 11, 2001, the United States experienced a series of terrorists attacks on its home soil. These terms all relate to events that resulted from that tragic day. 25 POINTS. This person has been
answered Mar 6, 2019
5 votes
212k views
Show that sinA - cosA +1 / sinA + cosA -1 = secA + tanA
answered Jan 30, 2019
2 votes
172k views
As you move from left to right across the periodic table __. Question options: The atoms become more reactive. The number of electron shells on the atom increase. The atoms decrease in mass. The number
answered Jul 27, 2018
5 votes
155k views
What type of costume did ancient Greek actors wear? A) None—they were naked B) Pants and shirts with buttons C) Long tunics and robes D) Battle dress and masks
answered Apr 29, 2018
3 votes
175k views
_____ are the cost of borrowing money. a. Job networks b. Interest rates c. Business cycles d. Unemployment phases Please select the best answer from the choices provided
answered Jan 7, 2018
4 votes
65.2k views
Which mineral property is easily observed but can be unreliable when it comes to mineral identification
answered Dec 17, 2017
6 votes
221k views
Let f(x) = x – 3 and g(x) = x + 11. Find f(x) • g(x).. . A] x2 – 8x – 33. . B] x2 – 8x + 14. . C] x2 + 8x + 14. . D] x2 + 8x – 33
answered Nov 18, 2017
1 vote
107k views
Explain the demand curve for eskom as well as the implication of the curve with regards to market power
answered Jul 16, 2017
5 votes
216k views
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