Answer:
The image distance from right lens is 2.86 cm and image is real.
Explanation:
Given that,
Focal length of left lens = 10 cm
Focal length of right lens = 5 cm
Distance between the lenses d= 15 cm
Object distance = 50 cm
We need to calculate the image distance from left lens
Using formula of lens

Put the value into the formula



We need to calculate the image distance from right lens
The object distance will be

Using formula of lens

Put the value into the formula



The image is real.
Hence, The image distance from right lens is 2.86 cm and image is real.
Answer:
v = 12.12 m/s
Explanation:
Given that,
The mass of the cart, m = 75 kg
The roller coaster begins 15 m above the ground.
We need to find the velocity of the cart halfway to the ground. Let the velocity be v. Using the conservation of energy at this position, h = 15/2 = 7.5 m

So, the velocity of the cart is 12.12 m/s.
An object can be at rest and still be in motion because the earth is always in motion.
The hotter molecules become, the faster they move around. The colder they are, the more slow and lethargic they are
Any charged object can<span> exert the force upon other objects ... i think tell me if im right</span>