Atrain leaves the station heading south on the tracks. it takes the train 5 seconds to reach 50 miles per hour. it completes the entire 100 mile trip in two hours. calculate the train's average speed and velocity over the two hour trip. show your work. identify if each of the measurements are a scalar or vector quantity.

explanation: in any substance/object, the particles inside it (atoms/molecules) constantly move in random directions and with random speeds (this motion is called brownian motion). as a result, the particles have some kinetic energy (which is proportional to the temperature of the substance).

explanation:

have a great day!

5 w for 1hr = 5x60x60 joules=300x60=3000x6=18,000j as total energy conversion. efficiency of bulb needed for radiant to thermal within 18000

be subject to a force andchange its motion

the displacement produced by the body.  

the amount of force subjected to the body.  

the angle between the direction of force and displacement