Determine the magnitude of P in the diagram above
...Determine the magnitude of P in the diagram above
16N
20N
32N
40N
Correct answer is C
X = 50 sin30 = 30 x 0.5 = 25cm
40 x 20 = p x 25
p = 40×2025
= 32N
On a rainy day, small oil films on water show brilliant colours. This is due to ...
Which of the following devices is associated with alternating currents only? ...
Ice of mass 50g at 0°C was completely melted by 70% of the total heat energy supplied. Calculate...
Pure silicon can be converted to a p-type by adding a controlled amount of ...
The minimum energy required to remove an electron from an atom is known as ...
If the temperature of a resistance wire is gradually increased, its resistance will ...
The process whereby a liquid turns spontaneously into vapour is called ...