Answers by Maher Aldous
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Answers by Maher Aldous

Answers by Maher Aldous
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3 A student is measuring the speed of sound in air. He hears an echo from a wall 50 m away 0.3 s after he made the sound. Calculate the speed of sound.
answered Aug 19, 2021
6 votes
161k views
Step 1-Count the number of atoms of each element on each side of the arrow. Step 2-Balance atoms using coefficients. Step 3-Check your work. 1. ____Na + ____MgF2  ____NaF + ____Mg 2. ____Mg + ____HCl
answered May 27, 2021
3 votes
170k views
If the ratio of perimeters of two similar figures is 2/3, what is the ratio of the areas?
answered May 19, 2021
3 votes
203k views
Alton is making a sandbox for his kids in the backyard. He has 400 feet of board for the sides of the sandbox. A. Define the function A(w) to represent the area of the sandbox as a function of the width.
answered May 16, 2021
4 votes
35.2k views
NO ONE IS HELPING ME PLEASE IM FINNA CRY I SWEAR I BEGGING YOU!!!! THIS IT DUE TODAY!!! (50 POINTS) NO COPY AND PASTEING PLEASE 1. What do the graphs show? How do you know? 2. How many white people lived
answered Feb 26, 2021
3 votes
166k views
Which of the following is not an indication of a chemical reaction?
answered Feb 12, 2021
7 votes
42.0k views
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