9. Two identical glass containers were placed in direct sunlight. container was filled with air and the second container was fillec
mixture of air and carbon dioxide. Each container was sealed w
thermometer inside. Temperatures were recorded at 2-minute
as shown in the data table. Which statement best explains the
this activity? *
Time
(Min)
Temperature (°C)
Container
Container 2
1
(Air + CO2)
(Air)
24°
24°
25°
26°
26°
29°
27°
32°
28°
33°
29°
35°
2
4
6
8
10
O a. CO2 causes a random reflection of energy.
O b. CO2 has no effect on temperature.
c. CO2 converts some energy into potential energy.

Comedians like to joke that the reason we haven’t been visited by intelligent life from elsewhere in the universe is that aliens have been monitoring earth’s broadcasts of intellectually embarrassing tv programs, like gilligan’s island, fear factor, the jersey shore, and the jerry springer showand so consider us far too primitive to merit a visit. let’s check the assertion that aliens could have been receiving them. tv programs are broadcast at a frequency of about 100mhz with about 100kw of total power in 30frames per second, which emanatesroughly uniformly in all directions. assume that interstellar space transmits these broadcasts without attenuation. no matter how smart they are, aliens would require at least one photon per frame to interpret our signals. findthe number of photons per unit time per unit area reaching a receiver on a possible planet in the nearest star system, which is about 4 light-years away (a light-year is the distance light travels in a year). if aliens aimed a receiver or detector directly at earth, how big (in diameter) would it have to be to receive a photon per frame

In all trials, the magnitude of the final velocity for g1 + g2 was less than the magnitude of any initial velocity. as mass increased, what happened to the velocity? the velocity decreased. the velocity increased. the velocity of g1 + g2 could not be measured. the velocity was not affected by the mass increase.

Wavelength,frequency,and energy are related.what happens to a wave as it’s wavelength gets shorter?