Answer:
The person’s kinetic energy is 1,025 J
Explanation:
Kinetic energy is a form of energy. It is defined as the energy associated with bodies that are in motion and this energy depends on the mass and speed of the body.
Kinetic energy is defined as the amount of work necessary to accelerate a body of a given mass and in a position of rest, until it reaches a given speed. Once this point is reached, the amount of accumulated kinetic energy will remain the same unless there is a change in speed or the body returns to its state of rest by applying a force.
Kinetic energy is represented by the following formula:
where Ec is kinetic energy, which is measured in Joules (J), m is mass measured in kilograms (kg), and v is velocity measured in meters over seconds (m/s).
In this case:
- v= 5
Replacing:
Solving:
Ec= 1,025 J
<u><em>The person’s kinetic energy is 1,025 J</em></u>
Answer:
Boiling is the rapid vaporization of a liquid, which occurs when a liquid is heated to its boiling point, the temperature at which the vapour pressure of the liquid is equal to the pressure exerted on the liquid by the surrounding atmosphere.
Explanation:
Hi
Answer:
Explanation:
Upon arrival we needed to hunt in this new land we only had five refills and they needed 50 g of gunpowder to be shot once. We only have 15 pounds of gunpowder. It is taking six shots to kill one of these wild turkeys. How many turkeys can be shot with 15 pounds of gunpowder?
If we had plenty of refills, and it takes 6 shots to kill a wild turkey at 50 gms of gunpowder per shot, then each turkey requires 6X50 =300gms of gunpowder. We have 15X454 gms of gunpowder and have the potential to kill 15X454/300=22.7 or 22 turkeys.and it takes 6 shots to kill a wild turkey.
The limiting reagent is the number of refills, and withonly 5, we are out of luck and can't kill one turkey
Density=mass/volume volume=mass/density volume=12.8g/0.789 volume=16.2ml
Find the number of mols of CO2
1 mol of CO2 has a mass of
1 C + 2Os = 12 + 2*16 grams = 44 grams
x mol =0.0418 CO2
1/x = 44/0.0418
44x = 0.0418
x = 0.0418 / 44
x = 0.00095 mol
1 mol of CO2 has 6.02 * 10^23 Carbon atoms in it. Note that is the same number of molecules of CO2 present.
0.00095 mols = x
1/0.00095 = 6.02*10^23) / x
x = 6.02*10^23 * 0.00095
x = 5.719 * 10^20 atoms of carbon in 0.0418 grams of CO2
