Given that:
Force (F) = 8 N,
inclination of ramp (θ) =15°
determine magnitude of net force (Fnet) = ?
Fx =8 cosθ
= 8 × cos 15
= 7.72 N ,
Fy = F sinθ
= 8 × sin 15
= 2.07 N ,
Net force (Fnet) = sq.root [ (Fx)² + (Fy)²]
= sq.root [(7.72)² + (2.07)²]
= 8 N .
<em>Magnitude of net force is 8 N</em>
I think it’s under the water
10, 11 and 14:
speed = (frequency)x(wavelength)
12: wavelength=(speed)/(frequency)
13 and 15:
frequency = (speed) / (wavelength)
An electroscope is a device that detects static electricity by using thin metal or plastic leaves, which separate when charged. An object with a suspected static electric charge is brought near the metal plate or ball of the electroscope. Electrical charges move to the metal and down to the foil leaves, which then repel each other
Hope this helps! :D