Questions by Prettygeek

Questions by Prettygeek

A body which has surface area 5cm² and temperature of 727°C radiates 300J of energy in one minute. Calculate it's emissivity given that Stefan Boltzmann constant = 5.67 × 10^8W^-8m^-8K^-4

asked Jul 19, 2020

1 answer

5 votes

223k views

Choose the item that uses a comma or commas correctly. Andrew Carnegie famous for the thousands of libraries he built made his fortune in the steel industry. Andrew Carnegie famous for the thousands of

asked Jul 9, 2020

1 answer

1 vote

208k views

which of the following is the converse of the statement "If it is my birthday, then it is September"? A.If it is September, then it is not my birthday. B.If it is not September, then it is my birthday.

asked Dec 28, 2019

2 answers

2 votes

214k views

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