Physics, 19.07.2019 19:30 debbievines8592
Which of these statements would best explain the problem encountered with nuclear waste disposal? a) the isotopes have a long half-life and only remain radioactive for a long time period. b) the isotopes have a short half-life and only remain radioactive for a long time period. c) the isotopes have a long half-life and only remain radioactive for a short time period. d) the isotopes have a short half-life and only remain radioactive for a short time period. answer is a)
Answers: 1
Physics, 22.06.2019 10:40
As you are trying to move a heavy box of mass m, you realize that it is too heavy for you to lift by yourself. there is no one around to , so you attach an ideal pulley to the box and a massless rope to the ceiling, which you wrap around the pulley. you pull up on the rope to lift the box. use g for the magnitude of the acceleration due to gravity and neglect friction forces. once you have pulled hard enough to start the box moving upward, what is the magnitude f of the upward force you must apply to the rope to start raising the box with constant velocity? express the magnitude of the force in terms of m, the mass of the box.
Answers: 1
Physics, 22.06.2019 11:30
Balloon a has charge q, and identical mass balloon b has charge 10q. you hang them from threads near each other. choose all of the statements with which you agree. check all that apply. a. a and b exert the same magnitude forces on each other. b. the force that a exerts on b is 10 times the force that b exerts on a. c. the angle between the thread supporting a and the vertical is < the angle between the thread supporting b and the vertical. d. the force that a exerts on b is 1/10 the force that b exerts on a.
Answers: 2
Physics, 22.06.2019 18:00
The protons in a nucleus are approximately 2 ✕ 10^−15 m apart. consider the case where the protons are a distance d = 1.93 ✕ 10^−15 m apart. calculate the magnitude of the electric force (in n) between two protons at this distance.
Answers: 1
Which of these statements would best explain the problem encountered with nuclear waste disposal? a...
Mathematics, 15.07.2019 14:00
Mathematics, 15.07.2019 14:00
Social Studies, 15.07.2019 14:00
Mathematics, 15.07.2019 14:00
Chemistry, 15.07.2019 14:00
Mathematics, 15.07.2019 14:00
Mathematics, 15.07.2019 14:00
Mathematics, 15.07.2019 14:00
Mathematics, 15.07.2019 14:00
Social Studies, 15.07.2019 14:00