Physics, 30.11.2021 19:30 ddwithdadarco
7. Radon has a half life of 3.8 days. After 7.6 days, 6.5g remain. What was the mass of the original sample? HL: 3.8 Start! End: 6.5 Total:7.6
Answers: 2
Physics, 21.06.2019 17:30
The position of a dragonfly that is flying parallel to the ground is given as a function of time by r⃗ =[2.90m+(0.0900m/s2)t2]i^− (0.0150m/s3)t3j^. a: at what value of t does the velocity vector of the insect make an angle of 34.0 degree clockwise from the x-axis? b: at the time calculated in part (a), what is the magnitude of the acceleration vector of the insect? c : at the time calculated in part (a), what is the direction of the acceleration vector of the insect?
Answers: 1
Physics, 22.06.2019 21:00
How is the acceleration of an object in uniform circular motion constant? a - in magnitude only b - in direction only c - in both magnitude and direction d - in magnitude, direction & orientation
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Physics, 22.06.2019 23:50
Which property is expressed in distance units? o a. period o b. wavelength o c. speed o d. frequency
Answers: 2
7. Radon has a half life of 3.8 days. After 7.6 days, 6.5g remain. What was the mass of the original...
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