Answer:
the relativistic Doppler effect,
Explanation:
The emission of 21 cm from hydrogen atoms suffers from the relativistic Doppler effect, this is a current of its wavelength due to the relative speed between the source and the observer, us located on Earth.
If the object is moving away from us the shift is towards red and if the body is approaching towards us the shift is towards blue.
Also the value of the shift depends on the speed of the body.
Answer:
A force of μk⋅60N is needed to keep a 60-newton rubber block moving across level, dry asphalt in a straight line at a constant speed.
Explanation:
Answer:
Explanation:
Sexual reproduction is when a male and female have sexual inter course an and produce sex cells. A males sex cell is the sperm and the Females sex cell is the ova or egg cells.
I’m assuming it is kinetic energy. When velocity increases there is acceleration therefore it’s moving which then means it has kinetic energy