Which is greater 15 or 0.15
1 answer:
You might be interested in
Answer
given,
height of object = 2.7 cm
distance left of lens (u₁)= 20 cm
focal length of lens(f₁)= 10 cm
the distance of image
v₁ = 20 cm
magnification of first lens
m₁ = -1
distance of object from the second lens
u₂ = 52-20 = 32 cm
f₂ = 48 cm
now,
v₁ = 624 cm
magnification of first lens
m₁ = -12
total magnification
m = m₁ m₂
m = (-1)(-12)
m = 12
height of image
h' = -32.4 cm
a) distance between image and second lens is equal to 624 cm
b) height of image is equal to 32.4 cm
Answer:
The bowling ball
Explanation:
The PE (gravitational potential energy) of an object is given by:
where
m is the mass of the object
g is the gravitational acceleration
h is the height of the object above the ground
In this case, we are comparing the PE of a bowling ball and of a ping pong ball. The two balls are located at same height (h=5 m) and the gravitational acceleration is the same (g=9.8 m/s^2), so their PE depends only on their mass: since the bowling ball has a greater mass than the ping pong ball, the bowling ball will have a greater PE.