2) A platform scale calibrated in Newtons is placed on the bed of a truck driven at constant speed of 14 m/s. A box weighing 500 N is placed on a scale. Find the reading on the scale if: a) The truck passes over the crest of a hill with a radius of curvature 100 m. b) The truck passes through the bottom of a dip with a radius of curvature 80 m.

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

the inner core.

good luck: )

klicker

blue light is scattered in different directions by the tiny molecules of air. blue is scattered more than other colours because it has a shorter distance to travel which results in smaller waves. this is why we see a blue sky most of the time.