Questions by Dorald

Questions by Dorald

What is the main difference between mechanical and electrical waves? 1. mechanical waves involve transfer energy and, electromagnetic waves do not 2. mechanical waves require a medium to travel in and,

asked Oct 28, 2019

1 answer

3 votes

224k views

Alexander the Great took over the throne of what at the age of 20

asked Aug 28, 2019

2 answers

2 votes

162k views

Anna throws a ball in the air from her balcony. The following equation models the height of the ball, in meters, after t seconds. h(t)=5t^2+9t+80 Anna wants to rewrite the equation to determine after how

asked Aug 19, 2019

2 answers

5 votes

220k views

What is the value of c in the equation below? please answer quick

asked Jan 13, 2019

2 answers

3 votes

75.7k views

Help!!!!!!!!!!!!!!!!!!!!!!!!!

asked Aug 22, 2018

2 answers

2 votes

69.7k views

Lately was buying a pack of cigarettes in a local store (I am 67 yrs old) and was asked to provide ID. The the cashier then started putting my information in the register. I assume this is illegal for

asked Jul 10, 2018

1 answer

1 vote

184k views

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