Answers: 3
Physics, 21.06.2019 18:40
Ten students stand in a circle and are told to make a transverse wave. what best describes the motion of the students? each student bumps the shoulder of his or her neighbor. at the exact time, all students take a step to the right. the students skip clockwise, going in a circular motion. one at a time, each student lifts his or her hands up and then down.
Answers: 1
Physics, 22.06.2019 02:00
Chapter 23, problem 075 the figure shows a geiger counter, a device used to detect ionizing radiation (radiation that causes ionization of atoms). the counter consists of a thin, positively charged central wire surrounded by a concentric, circular, conducting cylindrical shell with an equal negative charge. thus, a strong radial electric field is set up inside the shell. the shell contains a low-pressure inert gas. a particle of radiation entering the device through the shell wall ionizes a few of the gas atoms. the resulting free electrons (e) are drawn to the positive wire. however, the electric field is so intense that, between collisions with gas atoms, the free electrons gain energy sufficient to ionize these atoms also. more free electrons are thereby created, and the process is repeated until the electrons reach the wire. the resulting "avalanche" of electrons is collected by the wire, generating a signal that is used to record the passage of the original particle of radiation. suppose the radius of the central wire is 24 âµm, the inner radius of the shell 2.3 cm, and the length of the shell 14 cm. if the electric field at the shell's inner wall is 2.8 ă— 104 n/c, what is the total positive charge on the central wire?
Answers: 1
Physics, 22.06.2019 08:30
If an astronaut takes an object to the moon the following is true (choose only one). a the mass will change but the weight will be the same. b both the mass and the weight of the object will be the same. c the weight will change but the mass will be the same. d both the mass and the weight of the object will change.
Answers: 1
What is the focal length of 2.30 d reading glasses found on the rack in a drugstore?...
Spanish, 11.05.2020 14:57
Mathematics, 11.05.2020 14:57
Mathematics, 11.05.2020 14:57
Chemistry, 11.05.2020 14:57
History, 11.05.2020 14:57
Social Studies, 11.05.2020 14:57
Mathematics, 11.05.2020 15:57
Mathematics, 11.05.2020 15:57
Chemistry, 11.05.2020 15:57
Biology, 11.05.2020 15:57
Mathematics, 11.05.2020 15:57
History, 11.05.2020 15:57
Chemistry, 11.05.2020 15:57
Social Studies, 11.05.2020 15:57