Answer:
2hrs
Explanation:
Given parameters:
Top speed of the jet = 4500km/hr
Distance = 3000km
Unknown:
Time it will take = ?
Solution:
Velocity is the displacement divided by time.
Velocity = 
Time = 
The jet flies at one - third its maximum speed;
So, speed of the jet = 
x 4500 = 1500km/hr
Time = 
= 2hrs
Answer:
D. recycling aluminum cans and glass bottles
Explanation:
it's the only one that makes sense because if its a short trip you should walk, you should use reusable bags, and turn off the water while brushing your teeth.
Hope this helps and have a wonderful day/night/afternoon
Answer:
This question is somehow not clear, because a typical human eye can notice objects which have wavelengths from about 380 to 740 nanometers. This is called visible spectrum (the portion of the electromagnetic spectrum that is visible to the human eye). Electromagnetic radiation in this range of wavelengths is called visible light or simply light.
Someone even can see extra colors - they able to see beyond the visible spectrum. The reason that the human eye can see the spectrum is because those specific wavelengths stimulate the retina in the human eye. The human retina can only detect incident light that falls in waves from about 380 to 740 nanometers long, so we can’t see microwave or ultraviolet wavelengths. This also applies to infrared lights which has wavelengths longer than visible and shorter than microwaves, thus being invisible to the human eye.
In conclusion, the human eye can not notice that objects with wavelength not in the range of 380 to 740 nanometers.
Explanation:
<span>Each atom in an ionic compound tends either to empty or complete the shell to 8 electrons. So when the number of electrons on the external shell is near 8 , the atom tends to attract electrons to complete the shell giving a positive ion called anion
Conversely when the number of electrons is small the atom gives these electrons to form a positive ion called a cation</span>
Pipes are made of the element Lead so the answer should be d) lead pipe
