An apple is placed 20.0 cm in front of a diverging lens of focal length 10.0 cm. Find the image distance and the magnification of the apple.
Answers
Answer:
Image distance of apple=-6.7 cm
Magnification of apple=0.33
Explanation:
We are given that an apple is placed 20.cm in front of a diverging lens.
Object distance=u=-20 cm
Focal length=f=-10 cm
Because focal length of diverging lens is negative.
We have to find the image distance and magnification of the apple.
Lens formula
Substitute the values then we get
Image distance of apple=-6.7 cm
Magnification=m=
Magnification of apple=
Hence, the magnification of apple=0.33
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= (1/2) (1.4 kg) (22.5 m/s)²
= (0.7 kg) (506.25 m²/s² )
= 354.375 kg-m²/s² = 354.375 joules .
This is just the kinetic energy associated with a 1.4-kg glob of
mass sailing through space at 22.5 m/s. In the case of a frisbee,
it's also spinning, and there's some additional kinetic energy stored
in the spin.
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yes i understand jxwkxbkwksk j
Explanation:
Answer:
Yes
Explanation:
Answers
d= 6200/2296
density = about 2.7
Answers
Efficiency of a machine is defined as the ratio of work performed on it to work performed by it.
What is the fundamental meaning of efficiency?
- Efficiency is the capacity to achieve something or get a desired outcome without wasting resources, time, money, energy, or effort. In a broader sense, it is the capacity to carry out tasks effectively and efficiently.
- Effectiveness and efficiency are frequently misunderstood. Efficiency is often a quantifiablenotion that is based on the ratio of total useful input to total useful output.
- When a machine uses the majority of the power provided to it for its load and just a small portion for waste, it is said to be highly efficient.
Efficiency = Output energy/ Input energy
The percentage value of efficiency of a machine is calculated as:
Efficiency = (Output energy/ Input energy) X 100%
Learn more about the machine efficiency with the help of the given link:
#SPJ2
Efficiency = work output/work input
Work input = effort force * effort distance
Work output = load force * load distance
Answers
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Answer: To help eliminate subjectivity
Explanation:
Edgenuity 2020