Answer:
its an interaction that can move an object; push or pull makes it or gravity, magnetism
Explanation:
its all in the answer
I can think of two of them:
-- carbon monoxide
-- black soot
Answer:
Light travels very fast
Explanation:
Speed of light is normally estimated as 299704644.54 m/s in air hence radar systems have always been used to measure the distance travelled per unit time. By Galileo experimenting to get the speed of light in the above mentioned set-up, it would be difficult to estimate the speed of light. Therefore, it was obvious that Galileo could not estimate the speed of light. This is because the speed of light is very high. In vacuum, the speed of light is estimated as 299,792,458 m/s and this can't be accurately measured in such mentioned set up by Galileo.
Answer:
The velocity is 6 m/s
Explanation:
We use the formula of kinetic energy=
Ec= 1/2 x m x v2
2160 J = 1/2 x 120 kg x v2
v =![\sqrt[n]{x} 2160Joulex2/120kg\\](https://tex.z-dn.net/?f=%5Csqrt%5Bn%5D%7Bx%7D%202160Joulex2%2F120kg%5C%5C)
v= 6m/s
1Joule= 1 kgm2/s2
The speedometer of a car reads instantaneous speed
