Physics, 01.03.2021 14:30 kingjaydee3415
. Initially, the activity of a sample of phosphorus-32 was 400Bq. After 84 days
the activity of a sample of phosphorus-32 has decreased to 25 Bq.
What is the half-life of phosphorus-32?
Answers: 2
Another question on Physics
Physics, 22.06.2019 11:30
1. a camcorder has a power rating of 19 watts. if the output voltage from its battery is 7 volts, what current does it use?answer units 2. a 1.5m wire carries a 6 a current when a potential difference of 57 v is applied. what is the resistance of the wire? yourunits 3. a clothes dryer uses about 2 amps of current from a 240 volt line. how much power does it use? yourunits 4.
Answers: 1
Physics, 22.06.2019 14:10
Amachinist turns the power on to a grinding wheel, at rest, at time t = 0 s. the wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 96 rad/s. the wheel is run at that angular velocity for 40 s and then power is shut off. the wheel slows down uniformly at 1.5 rad/s2 until the wheel stops. in this situation, the time interval of deceleration is closest to:
Answers: 3
Physics, 22.06.2019 17:20
You charge a parallel-plate capacitor, remove it from the battery, and prevent the wires connected to the plates from touching each other. when you increase the plate separation, what happens to the following quantities?
Answers: 1
Physics, 22.06.2019 17:30
You can watch static electricity in action by rubbing an inflated balloon against your hair. your hair will actually stand on its end! it does this because each hair becomes charged, and they all repel one another.
Answers: 3
You know the right answer?
. Initially, the activity of a sample of phosphorus-32 was 400Bq. After 84 days
the activity of a s...
Questions
Chemistry, 29.01.2020 22:45
Mathematics, 29.01.2020 22:45
History, 29.01.2020 22:45
Physics, 29.01.2020 22:45
History, 29.01.2020 22:45
Mathematics, 29.01.2020 22:45
English, 29.01.2020 22:45
Social Studies, 29.01.2020 22:45
Biology, 29.01.2020 22:45
History, 29.01.2020 22:45
Physics, 29.01.2020 22:45
Mathematics, 29.01.2020 22:45
