Are vectors a1 and a2 perpendicular? If not, what is the angle between them? The angle is 120 degrees

Describe the procedure for adding a1 and a2 using vector resolution.

Vectors are added by placing them at the end of the second vector to the tip of the first one.

Which of the vector components shown has a negative value? Explain your answer.

Which of the two displacement vectors has a larger vertical component?

Which of the two displacement vectors has a larger horizontal component?

What equation would you use to calculate the components of a1?

What equation would you use to calculate the components of a2?

What equation would you use to add anet x and anet y?

What is the resultant of a1 and a2?

Which of the following represents an upside-down image?

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

Asystem containing an ideal gas at a constant pressure of 1.22×10^5 pa gains 2140 j of heat. during the process, the internal energy of the system increases by 2320 j. what is the change in volume of the gas?