Physics, 11.11.2019 17:31 Terezagonzalez2271
Ascientist has two radioactive substances. one emits beta particles, and the other emits alpha particles. he thinks that since the alpha particles are larger, they are more dangerous to humans. what is wrong with his reasoning?
Answers: 1
Physics, 22.06.2019 05:30
What tightening torque should be used for a hexagonal head screw (not split-bolt) on a 250 kcmil conductor?
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Physics, 22.06.2019 13:30
The two stars in a certain binary star system move in circular orbits. the first star, alpha, has an orbital speed of 36 km/s. the second star, beta, has an orbital speed of 12 km/s. the orbital period is 137 d. a) what is the mass of the star alpha? b) what is the mass of the star beta?
Answers: 1
Physics, 22.06.2019 19:00
The friction of the water on a boat produces an acceleration of -10. m/s2. if the boat is traveling at 30. m/s and the motor is shut off, how long it take the boat to slow down to 5.0 m/s?
Answers: 3
Ascientist has two radioactive substances. one emits beta particles, and the other emits alpha parti...
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