Questions by Matt Todd

Questions by Matt Todd

Francium-223 has a half-life of 22 minutes. A geiger counter gives a reading of 58 counts per minute (cpm) from a sample of francium-223. What will the reading be 22 minutes later?.

asked Apr 23, 2023

1 answer

45 votes

37.8k views

Which best describes the mass of protons, neutrons, and electrons? A).neutrons have a much larger mass than than protons and electrons B).neutrons and protons have a much larger mass than electrons. C).

asked Apr 15, 2023

1 answer

22 votes

482k views

A robot vacuum advertises that it can clean a 120-square-foot room in 1/2 an hour. How many square feet could the robot vacuum clean in 1 hour?

asked Oct 14, 2022

1 answer

44 votes

253k views

Was King Louis XIV’s decision to exclude certain nobles a good leadership decision? Explain your answer.

asked Jun 17, 2022

1 answer

0 votes

142k views

Given three consecutive even integers whose sum is 54, find the largest of the three integers.

asked Mar 7, 2022

2 answers

9 votes

69.4k views

Can someone help me

asked Jan 14, 2022

1 answer

20 votes

119k views

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