Questions by Brad Hein

Questions by Brad Hein

How many photons are emitted during 16.38 s of operation of a red laser pointer? The device outputs 4.6 Watts at a 689.12 nm wavelength.

asked Oct 25, 2023

1 answer

14 votes

484k views

If an object has a positive charge, are the electrons from another object more likely to be attracted to it or to repel it?

asked Sep 28, 2023

2 answers

32 votes

215k views

A football is kicked vertically upward from a height of 2 feet with an initial speed of 50 feet per second. The formula h=2+50t-16t² describes the ball's height above the ground, h, in feet, t seconds

asked May 25, 2023

1 answer

13 votes

238k views

carson's training routine has 9 workout stations he spends an equal amount of time at each station if it takes him 40 mins to complete the first 4 stations how long does it take to him to finish this entire

asked Mar 18, 2023

1 answer

41 votes

493k views

Give the following reaction: ammonium nitrate—> dinitrogen monoxide + water. a.) Write a complete balanced chemical equation. b.) Calculate the number of molecules of water produced by 11.2g of ammonium

asked Aug 26, 2022

1 answer

41 votes

161k views

Hey I have a question! Here's the question, "Suppose you have a 4-liter bucket and a 7-liter bucket. You need 3 liters of water for an aquarium. Explain how to get 3 liters of water if neither bucket is

asked May 19, 2022

1 answer

18 votes

185k views

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