1. Why is the blood red?
2. Why is the sky is blue
3. What are the colors of the rainbow?
4. How kites fly?
5. How does e-bikes work?
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1. Why is the blood red?
2. Why is the sky is blue
3. What are the colors of the rainbow?
4. How kites fly?
5. How does e-bikes work?
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1.Blood gets its bright red color when hemoglobin picks up oxygen in the lungs. As the blood travels through the body, the hemoglobin releases oxygen to the different body parts.
2.The sky is blue due to a phenomenon called Raleigh scattering. This scattering refers to the scattering of electromagnetic radiation (of which light is a form) by particles of a much smaller wavelength.
3.This sequence of colours gives us the characteristic pattern we're all familiar with, and that we learn from childhood through the use of mnemonic phrases. The colours of the rainbow are Red, Orange, Yellow, Green, Blue, Indigo and Violet.
4.Lift is the upward force that pushes a kite into the air. Lift is generated by differences in air pressure, which are created by air in motion over the body of the kite. Kites are shaped and angled so that the air moving over the top moves faster than the air moving over the bottom.
5 Generally speaking, e-bikes are bicycles with a battery-powered “assist” that comes via pedaling and, in some cases, a throttle. When you push the pedals on a pedal-assist e-bike, a small motor engages and gives you a boost, so you can zip up hills and cruise over tough terrain without gassing yourself.
Answer:
1. blood is red color when hemoglobin picks up oxygen
2. Raleigh scattering
3. Red, orange, yellow, green, blue, indigo, violet
4. Lift is the upward force that pushes a kite into the air
5. When you push the pedals on a pedal-assist ebike a small motor engages and gives you a boost