<span>If your speed change from 10 km/h to 6 km/h,you have a negative acceleration</span>
So what the thermal energy equation tells you is the internal heat energy a system gives you due to the movement of particles/temperature. This heat is due to the kinetic energy in the particles. Q represents the heat transfer of a material that has a specific mass, m, specific heat, c, and some temperature or change in temperature, ΔT. For example, say you have an object of mass 1kg, specific heat 0.5J/kg°C and the temperature changes from 50°C to 100°C. To find the heat transfer you would use the equation Q= 1kg*0.5J/kg°C*(100°C-50°C). This would tell you that the heat transfer of this particle is 25J which means that 25J of energy are transferred from one point to the other in this system.
Answer:
<u>E. Hydrogen</u>
Explanation:
It is important to note that since Hydrogen is categorized as the lightest known element in the universe today. <u>It is therefore the </u><u>only </u><u>gas molecules among the listed option that would be most likely be moving at a speed high enough to escape the earth's atmosphere.</u>
Because Hydrogen has just a single proton and a single electron this makes it easy to acquire enough energy to pull the earth's gravity.
Answer:
b. The excess charge has distributed itself evenly over the outside surface of the sphere.
Explanation:
When a neutral hollow metal sphere is touched externally with a charge, the charge distributes itself evenly on the surface of the sphere. One thing to note here is that for a hollow sphere, the charges stays on the surface alone. This phenomenon is why the inside of airplanes are free from electric charge when struck by a lightning when they travel through a lightning storm.
Answer:
V / T is the slope of the graph
S = V / T so the slope of the graph will be the displacement at that point
Even tho the above assumes uniform quantities, the instantaneous displacement at any time is the slope of the graph at that point in case one has a graph that is not a straight line.
