Physics, 04.07.2020 14:01 Ladarius622
To measure the activity of a rock thought to be radioactive, a physicist puts the rock beside a detector and counts 225 particles in 10 minutes. To check for background, she removes the rock and then records 90 particles in 6 minutes. She converts both these answers into rates, in particles per hour, and takes their difference to give the activity of the rock alone. What is her final answer, in particles per hour, and what is its uncertainty
Answers: 2
Physics, 22.06.2019 06:30
=force × distance a. work b. velocity c. pressure d. momentum
Answers: 1
Physics, 22.06.2019 07:00
Which statement is best supported by the information in the chart? wave y is moving the fastest. wave x is moving the fastest. all of the waves are moving at the same speed. all of the waves have the same value of wavelengths per second.
Answers: 3
Physics, 22.06.2019 07:30
The slope of a velocity time graph over any interval of time gives the during that interval
Answers: 1
Physics, 22.06.2019 13:40
Consider a double atwood machine constructed as follows: a mass 4m is suspended from a string that passes over a massless pulley on frictionless bearings. the other end of this string supports a second similar pulley, over which passes a second string supporting a mass of 3m at one end and m at the other. using two suitable generalized coordinates, set up the lagrangian and use the lagrange equations to find the acceleration of the mass 4m when the system is released. explain why the top pulley rotates even though it carries equal weights on each side.
Answers: 2
To measure the activity of a rock thought to be radioactive, a physicist puts the rock beside a dete...
Mathematics, 11.01.2021 09:50
Mathematics, 11.01.2021 09:50
Spanish, 11.01.2021 09:50
Biology, 11.01.2021 09:50
Health, 11.01.2021 09:50
Chemistry, 11.01.2021 09:50
Spanish, 11.01.2021 09:50
Mathematics, 11.01.2021 09:50
Mathematics, 11.01.2021 09:50
Mathematics, 11.01.2021 09:50
Physics, 11.01.2021 09:50
Mathematics, 11.01.2021 09:50
Mathematics, 11.01.2021 09:50
Physics, 11.01.2021 09:50
Mathematics, 11.01.2021 09:50
History, 11.01.2021 09:50
Mathematics, 11.01.2021 09:50
Mathematics, 11.01.2021 09:50