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3 years ago

Which of the following best describes this Image?

Physics

2 answers:

Orlov [11]3 years ago

7 0

Answer: 4. Good accuracy

Explanation: Considering the center red dot to be the target and the dark dots to be the patch of the attempted targets.

The given figure has all the three attempts close enough to the target on the penultimate circular white patch, therefore we can say that the figure defines a good accuracy.

Accuracy is the degree of closeness to the targeted value (or spot, as here the case is) of an attempt (or a series of attempts) made.

Precision is defined as the degree of closeness of a series of attempts made i.e. the attempts taken must be close to each other having lesser deviation be it far from the target or closer to the target it does not matters.

ratelena [41]3 years ago

5 0

Good precision because he is hitting the same spot 3 times but we don't know if he is accurate. SO the answer is 2

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What does a negative value for the focal length tell you?

Llana [10]

the focal length is much more decent for a concave, and also worse for a convex mirror. When the image that is given, distance is good and decent, images are always on the same area of the mirror as the object given , and it is not fake. images distance is never positive , the image is on the oppisite side of the mirror, so the image must be virtual.

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4 years ago

The more light bulbs you add to a series circuit, the _______ the lights will become.

Virty [35]

Answer:

brighter

Explanation:

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2 years ago

Read 2 more answers

A piece of aluminum foil has a known surface density of

bija089 [108]

The cube has 6 equal, square, foil faces. The mass of foil for each face is (380/6) milligrams.

The surface area of each piece is (380)/(6•11) cm^2.

The length of each side of the piece is √(380/6•11) cm

That's about 2.4 cm .

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3 years ago

An inductor of inductance 0.02H and capacitor of capacitance 2 microF are connected in series to an AC source of frequency 200/p

Ad libitum [116K]

C because it’s not a or B so 50/50 c or d and d is def not the answer so c

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2 years ago

Listed following are three possible models for the long-term expansion (and possible contraction) of the universe in the absence

Keith_Richards [23]

Answer:

1. Recollapsing universe

2. Critical universe

3. Coasting universe

Explanation:

Recollapsing universe has dark matter density greater than critical density. While critical universe has its matter density equal to the critical sensity. Coasting universe on the other hand has much smaller matter density compared to critical density.

Note that the critical density is approximately 10^-20 grams/cm3

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3 years ago