Choose the item that best fits each description

1. type of reflection seen in a plane mirror
2. main form of radiation emitted by our bodies
3. EM radiation, such as light, is this type of wave
4. highest frequency EM wave from list
5. a magnetic field is
6. occurs because carbon dioxide blocks infrared but not visible light
7. image height divided by object height
8. colors of a rainbow can be seen because
9. is not a greenhouse gas
10. blocks or diminishes light reflected from surfacesa. blackbody radiation
b. carbon dioxide
c. greenhouse effect
d. ELF waves
e. magnetic field
f. X-rays
g. lodestone
h. magnification
i. carbon monoxide
j. dispersion
k. interference
l. a transverse wave
m. specular reflection
n. middle frequency radio waves
o. normal
p. longitudinal wave
q. plane mirror
r. polarization
s. gamma rays
t. infrared
u. created by a moving electric charge
w. ozone
x. diffuse reflection

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?

Acoyote chasing a rabbit is moving 8.00 m/s due east at one moment and 8.80 m/s due south 4.25 s later. let the x axis point due east and the y axis point due north. find the direction of the coyote's average acceleration during that time.

Two polarizers are oriented at 70∘∘ to one another. unpolarized light falls on them. what fraction of the light intensity is transmitted?