Answer:
(E) none of these.
Explanation:
first that all we need the meaning of a Watt
<em>" is a unit of power. In the International System of Units (SI) it is defined as a derived unit of 1 </em><em>joule</em><em> per </em><em>second</em><em>,[1] and is used to quantify the rate of </em><em>energy</em><em> transfer." </em>
<em>definition taken from wikipedia.org</em>
now with this concept we have that:
100 W means 100 J/s .Therefore it uses 100 J energy per second
therefore on the answers don't mention this three terms together
Joules, energy and second so the answer must be.
(E) None of these
The key formula ===> Voltage = (current) x (resistance)
Plug in the numbers given ===> Voltage = (3.6 A) x (5.0 ohms)
Dooda multiplication ===> Voltage = 18 volts
Leg A: v = S/t = 15 km/10 min = 1,5 km/min
Leg B: v = S/t = 20 km/15 min = 1 1/3 km/min
Leg C: v = S/t = 24 km/12 min = 2 km/min
Leg D: v = S/t = 36 km/9 min = 4 km/min
Leg E: v = S/t = 14 km/14 min = 1 km/min
Sequence: (leg) E - B - A - C - D
Answer:102.84 N
Explanation:
Given
Mass of board 
Length of board 
First support is at one end and second support is at a distance of 2.38 m from the other end
Suppose
and
are the reactions at the two support
Taking moment about the first end we can write

