Talon

1. Compare the light-gathering power of a large astronomical telescope (aperture 10 meters) with that

of the dark-adapted human eye (aperture 8 mm).

a. 1.25

b. 1.56

c. 15.6

d. 1.56 x 106

2. The resolution of the human eye is about 1.5 arcminutes. What would the aperture of a radio

telescope (observing at 21 cm) have to be to have this resolution? Even though the atmosphere is transparent at radio wavelengths, we do not see in the radio region of the electromagnetic spectrum.

You should understand, from your calculations, why humans do not see in the radio region. Recall that the limit on the angular resolution, θ, is found (see p. 89)

𝜃 = 2.06 × 105

𝜆

𝐷

arcseconds

Be sure to use wavelength and diameter in the same units.

a. 6 cm

b. 5 m

c. 48 m

d. 481 m

3. The Mars Reconnaissance Orbiter (MRO) flies at an average altitude of 280 km above the martian

surface. If its cameras have an angular resolution of 0.2 arcsecond, what is the size of the smallest

objects that the MRO can detect on the martian surface. To do this, use the small angle formula.𝑠 =𝑑𝜃/2.06 × 106 arcseconds Where d is the distance of the object, and θ is its angular size. This will give the resolution limit.

a. 0.2 cm

b. 5 cm

c. 12 cm

d. 27.2 cm

Thanks in advance!

A 100 kg gymnast's feet do 5000 J of work to stop her. What is the girl's velocity when she began to stop?

A massive bowling bowl hangs from rafters by a string. An identical string is tied to the bottom of the ball. A bowler quickly jerks downward on the lower string. Which string breaks and why?

If you have 82.5 g of Carbon from propane, C3H8, how many grams of propane did you have?

Can you also please explain why the answer is what it is?

Mercury has a density of 13.7 g/cm3. If you were to remove the mercury switch from a typical thermostat, you would have approximately 1.5 cm3 of Mercury. How many mercury atoms would this represent?

Can you please explain why the answer is what it is?

If you have 82.5 g of Carbon from propane, C3H8, how many grams of propane did you have?

Consider the compound Pb3[Fe(CN)6]2, how many nitrogen atoms are in each formula unit?

What is the range of the function f(x)=x squared -3x- 4 when the domain is {5,3,-1}

A. {6,-4,0}

B. {8,2,-7}

C.{25,9,1}

D.{6,4,0}

And I need help with this one...

y= 2x+3 3y-6x+-12

I think it wants to know if they are parallel, perpendicular or neither. But I don't have the test

I got drafted to the Thunder. Are they a good team to be with? I'm a PG, will I get any playing time?

I have already beat the Elite 4 and everything I want to get rid of my starter pokemon. I just do not know which to replace it with.

Right now I have

Sawsbuck

Drifblim

Krookadile

Gothielle

Hydrageion

I'm in 8th Grade...what time would I need to do decent in the 800?

And......... What is the releative temp. of water in the Gulf Stream current compared to the temp. of water in Northern Europe?

And,,,,,,,,Why do most marine organisms live in the surface zone?

Demons, were wolfs, zombies, or vampires what's your favorite.

I know I'll get a couple of Twilight's, and I am okay with that....

Mine is definitely The Blue Bloods Series

BQ: Who is your all time favorite villain?

Mine is either Voldemort or "A" in Pretty Little Liars

The massive slab of volcanic rock was covered with intricate carvings, some showed the birth of the rulers, others showed the four leaders many accomplishments. Calder manipulated the water so that there was a sort of “ramp” leading up to “the meeting place”. As the threesome stepped onto the rock, a tingle seemed to go through each of their bodies. For Karlee it was as if she was transported home, she could feel the freshly trimmed grass under her feet, could smell the spring flowers around her tickling her nose. For Calder, it was much more, it was as if he was a leader, he felt power rushing in him, welling up inside and exploding like a geyser. In his vision he saw himself being praised by thousands of loyal subjects as he proclaimed himself their sole leader. Murigens sensation was simpler, like being home after a long vacation, or returning to a place you know so well, bit don’t visit much. This place was more than just a rock, it had been here since the beginning of time. Even though they were in a crisis, it was near impossible not to feel at peace here.

“You all feel this way because this is a place of balance, no one substance can control it, this makes it impossible to tell where one element starts and the other ends”, the voice of Helios echoed from the shadows.

The three looked around franticly just as a gale force wind through them to the ground.

Okay, I know this may seem selfish, but I want the name of this character to have something to do with me...I modeled him after me.

My name is Talon...the character has a special connection with water and he is very ornery and sarcastic.