This is a matter of thought, so the father is probably more likely to slow down faster because the weighs more and gravity pulls him down to the friction of the ice more potently Thant the child. So, the father.
Answer:
The answer is D.
Explanation:
The Law of Conservation of mass states that matter is not created nor destroyed in a chemical reaction.
This is somewhat confusing, but I'd have to go with A. Since Newton's Third Law states that every action has an equal but opposite reaction.
Answer:
The temperature is 749.8 K
Explanation:
Final temperature (T2) = (distance apart/thermal coefficient of expansion×length) + initial temperature
distance apart = 1.5 mm = 1.5/1000 = 0.0015 m
thermal coefficient of expansion for copper = 16.6×10^-6/K
Length of copper = 20 cm = 20/100 = 0.2 m
Initial temperature = 25 °C = 25 + 273 = 298 K
T2 = (0.0015/16.6×10^-6×0.2) + 298 = 451.8 + 298 = 749.8 K
Answer:
1. Gravity keeps planets in orbit.
2. The ancient Greeks believed that the earth was the center of the universe.
3. Planets orbits. ( He believed that the universe was heliocentric)
4. 8 planets
5. Neptune