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4 years ago

A person can only see object placed at 40cm from him state his defect

Physics

1 answer:

3241004551 [841]4 years ago

4 0

The answer is true. A person can only see object placed at 40 cm from him.

Hope I helped. ^-^

Mark as brainliest

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A 148 g ball is dropped from a tree 11.0 m above the ground. With what speed would it hit the ground

forsale [732]

Answer:

14.68m/s

Explanation:

As per the question, the data provided is as follows

Mass = M = 0.148 kg

Height = h = 11 m

Initial velocity = U = 0 m/s

Final velocity = V

Gravitational force = F

Mass = M

Based on the above information, the speed that hit to the ground is

As we know that

Work to be done = Change in kinetic energy

$F ( S) = (\frac{1}{2} ) M ( V^2 - U^2 )$

$M g h = (\frac{1}{2} ) M ( V^2 - U^2 )$

$g h = (\frac{1}{2} ) ( V^2 - U^2 )$

$V^2 - U^2 = 2gh$

$V^2 - 0 = 2gh$

$V = \sqrt{2 g h}$

$= \sqrt{2\times9.8\times11}$

= 14.68m/s

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3 years ago

What has a greatest (most substantial/ most influential) effect on the strength of the force of

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Answer:

The force of gravity effected by stream the was muscle in the earth.

Explanation:

It just was

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3 years ago

John is hiking and notices a small stream of water flowing down the side of the mountain. What part of the water cycle is John o

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Answer: Runofff

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3 years ago

The dielectric strength of rutile is 6.0 × 106 V/m, which corresponds to the maximum electric field that the dielectric can sust

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Answer:

6.48*10⁻⁷ C

Explanation:

By definition, the capacitance of a capacitor is expressed as follows:

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where Q is the charge on one of the plates of the capacitor, and V the potential difference between the plates.
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Replacing by the givens, we can find V as follows:

$V = 6.0e6 V/m * 0.00108 m= 6480 V$

Now, we can find the maximum charge Qmax, as follows:

$Q_{max} = C*V = 1e-10F* 6480 V = 6.48e-7 C$

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3 years ago

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What is the equation for frequency?

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Answer:

f=1/t is the equation of frqency

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3 years ago