If Juan used a Celsius thermometer, it would tell him the Celsius temperature.
If he added 273 to that number, he'd have the "absolute" or Kelvin temperature.
A light year is a measurement of distance that is used in the space. It is the distance that a light traveled for 1 year on Earth or 365 days on Earth at a speed of 3 x 10^8 meters per second. To convert the units from light year to the SI unit meters, we simply make use of the definition of the unit. We do as follows:
18.9 light years ( 365 days / 1 light year ) ( 24 h / 1 day ) ( 3600 s / 1h ) ( 3 x 10^8 m/s) = 1.79 x 10^17 meters
Therefore, 18.9 light years is equal to 1.79 x 10^17 meters.
Answer:
D.diamond
Explanation:
Refraction occurs due to the bending of light rays as they pass from one medium to another. The light rays bend as their speed changes as they pass from one medium to another. The more the speed changes, the more the light bends and therefore more refraction occurs. When light passes from air to the diamond, the speed of light decreases more than any of the other materials listed in the given choices. So the light rays slow down the most diamond and so most refraction occurs in diamond.
Answer:
planet that is farthest away is planet X
kepler's third law
Explanation:
For this exercise we can use Kepler's third law which is an application of Newton's second law to the case of the orbits of the planets
T² = (
a³ = K_s a³
Let's apply this equation to our case
a = ![\sqrt[3]{ \frac{T^2}{K_s} }](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B%20%5Cfrac%7BT%5E2%7D%7BK_s%7D%20%7D)
for this particular exercise it is not necessary to reduce the period to seconds
Plant W
10² = K_s 
a_w = ![\sqrt[3]{ \frac{100}{ K_s} }](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B%20%5Cfrac%7B100%7D%7B%20K_s%7D%20%7D)
a_w = ![\frac{1}{ \sqrt[3]{K_s} }](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B%20%5Csqrt%5B3%5D%7BK_s%7D%20%7D)
4.64
Planet X
a_x = ![\sqrt[3]{ \frac{640^3}{K_s} }](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B%20%5Cfrac%7B640%5E3%7D%7BK_s%7D%20%7D)
a_x = \frac{1}{ \sqrt[3]{K_s} } 74.3
Planet Y
a_y = ![\sqrt[3]{ \frac{80^2}{K_s} }](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B%20%5Cfrac%7B80%5E2%7D%7BK_s%7D%20%20%7D)
a_y = \frac{1}{ \sqrt[3]{K_s} } 18.6
Planet z
a_z = ![\sqrt[3]{ \frac{270^2}{K_s} }](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B%20%5Cfrac%7B270%5E2%7D%7BK_s%7D%20%7D)
a_z = \frac{1}{ \sqrt[3]{K_s} } 41.8
From the previous results we see that planet that is farthest away is planet X
where we have used kepler's third law
Answer:
In the water flow mechanism in fishes when they take in oxygen using the gills
Explanation:
Fish gills are organ that facilites respiration under water,its Mechanism is described below,first water is pulled in the mouth of the fish and pumped over the gills,while the blood flow in opposite direction known as counter current exchange helps in pushing low oxgen water away and retaining high oxgen in the fish blood.
