Physics, 28.01.2021 05:30 laraejackson75
A radioactive substance has a decay probability of λ = 0.0025 s-1. How long will it take for the activity to drop to 20 % of its present value?
Answers: 2
Physics, 22.06.2019 02:30
The boy of mass 30 kg is at r1= 2 meters from the fulcrum. of the girl is 45 kg, at what r2 must she sit so that they are balanced ?
Answers: 3
Physics, 22.06.2019 09:50
If an athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?
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Physics, 22.06.2019 11:10
Which situation will produce the greatest change of momentum
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Physics, 22.06.2019 13:10
Aplane flying horizontally at an altitude of 1 mile and a speed of of 500mih passes directly over a radar station. find the rate at which the distance from the plane to the station is increasing when it is 2mi away from the station.
Answers: 1
A radioactive substance has a decay probability of λ = 0.0025 s-1. How long will it take for the act...
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