subject
Physics, 27.06.2019 02:00 vanessa7676

An element has three stable isotopes. one has a mass number of 63 and an abundance of 50%. the second has a mass number of 65 and an abundance of 30%. the third has a mass number of 67 and an abundance of 20%. calculate the relative atomic mass of this element. give your answer to one decimal place.

ansver
Answers: 1

Another question on Physics

question
Physics, 22.06.2019 02:50
An alligator swims to the left with a constant velocity of 5 \,\dfrac{\text{m}}{\text s}5 s m ? 5, space, start fraction, m, divided by, s, end fraction. when the alligator sees a bird straight ahead, the alligator speeds up with a constant acceleration of 3 \,\dfrac{\text {m}}{\text s^2}3 s 2 m ? 3, space, start fraction, m, divided by, s, start superscript, 2, end superscript, end fraction leftward until it reaches a final velocity of 35 \,\dfrac{\text {m}}{\text s}35 s m ? 35, space, start fraction, m, divided by, s, end fraction leftward. how many seconds does it take the alligator to speed up from 5 \,\dfrac{\text {m}}{\text s}5 s m ? 5, space, start fraction, m, divided by, s, end fraction to 35 \,\dfrac{\text {m}}{\text s}35 s m ? 35, space, start fraction, m, divided by, s, end fraction?
Answers: 3
question
Physics, 22.06.2019 09:30
How would a small bar magnet be oriented when placed at position x?
Answers: 2
question
Physics, 22.06.2019 15:30
This is the number of complete movements of a wave per second.
Answers: 1
question
Physics, 22.06.2019 16:50
Acommercial refrigerator with refrigerant-134a as the working fluid is used to keep the refrigerated space at -35°c by rejecting waste heat to cooling water that enters the condenser at 18°c at a rate of 0.25 kg/s and leaves at 26°c. the refrigerant enters the condenser at 1.2 mpa and 50°c. if the compressor consumes 3.3 kw of power, determine (a) the mass flow rate of the refrigerant, (b) the refrigeration load, (c) the cop, and (d) the minimum power input to the compressor for the same refrigeration load.
Answers: 2
You know the right answer?
An element has three stable isotopes. one has a mass number of 63 and an abundance of 50%. the secon...
Questions
question
History, 08.02.2021 07:10
question
Mathematics, 08.02.2021 07:10
question
Mathematics, 08.02.2021 07:10
question
Mathematics, 08.02.2021 07:10
question
History, 08.02.2021 07:10