Answer:
less than stating velocity due to friction and air resistance.
Explanation:
That's ONLY true when the pendulum is hanging
in the center position and not moving.
Answer:
Inverted
Real
Explanation:
u = Object distance = 30 cm
v = Image distance
f = Focal length = 10 cm
Lens Equation
As, the image distance is positive the image is real and forms on the other side of the lens

As, the magnification is negative the image is inverted
The following choice that is NOT a way that machines provides a mechanical advantage is to change direction. The correct answer is A.