Answer: an electromagnetic wave of a frequency between about 104 and 1011 or 1012 Hz, as used for long-distance communication.
Explanation:
1 kg = 1000g
2.43 kg *1000g/1kg = 2430 g
4 is correct for this one
When I was on the phone with my bio teacher I asked she said endothermic
Answer:
When one object uses force to move the other.
Explanation:
This is called Thrust.Thrust is used in airplane engines,or an engine can be a source of Thrust,we use our legs to Thrust us forward when we walk!
