Answer:
They would be at where they are for hours after.
Explanation:
Although the motion of the water is appearing to be traveling East, making Johnny think that the wave is actually pushing on the boat East bound, what is really happening here is that the motion of the particles of water is actually moving up and down that propagate to the East. Therefore, the wave would only be pushing the boat up and down, not toward land.
Answer:
25 times greater
Explanation:
Let the mass of the car is m
Initial speed, u = 20 km/h = 5.56 m/s
Final speed, v = 100 km/h = 27.78 m/s
The formula for the kinetic energy is given by
So, initial kinetic energy
Ki = 15.466 m
final kinetic energy
Kf = 385.86 m
Increase in kinetic energy is given by
=
= 385.86 / 15.466 = 25
So, the kinetic energy is 25 times greater.
Answer and Explanation: One ATP release approximately 30.5kJ/mol of energy. Using Avogadro's constant, it is known one mol corresponds to molecules, so 106 ATP molecules releases:
E =
E = J
A cell is approximately a sphere. Volume of a sphere is given by
V =
Changing radius from mm to m:
r = m
Then, volume is
V =
V = m³
Power density is given by
power = 12.8. W/m³
Power density for a the cell is 12.8. W/m³.
Power density for battery is
100 cm³ = m³
power =
power = W/m³
Comparing cell and battery, battery has a greater power density.