Questions by Tarek Hallak

Questions by Tarek Hallak

What is the value of |-7 |?

asked Jan 5, 2021

1 answer

5 votes

118k views

What does the continuous line connecting items in the circuit diagram represent? A:a source of electrical energy B.a closed switch C:an electrical resistor D:an electrical conductor

asked Jul 12, 2020

2 answers

2 votes

38.2k views

A flea walking along a ruler moves from the 45 cm mark to the 27 cm mark. It does this in 3 seconds. What is the speed? What is the velocity? (Define increasing numbers to be the positive direction and

asked May 22, 2020

1 answer

3 votes

203k views

Who invent cell phones

asked Jan 15, 2020

1 answer

2 votes

203k views

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