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Margaret [11]
2 years ago
14

A building is 6m high, and it is 80m from a converging camera lens. If the camera forms an image which is 6 mm high, (a) What is

the magnification? (b) How far must the camera film be behind the lens for the image to be formed?
Physics
1 answer:
Lostsunrise [7]2 years ago
5 0

Answer:

Explanation:

Two aircrft pand qare flyingatthe same speed 300m the diraction along tothe diraction of the veloctiy

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Thanks + BRAINLIST <br><br> Please need correct answer asappp
garik1379 [7]
(A) Standing waves are created by two identical waves reflecting off each other

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3 0
3 years ago
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A skull believed to belong to an ancient human being has a carbon-14 decay rate of 5.4 disintegrations per minute per gram of ca
larisa86 [58]

Answer:

9.43*10^3 year

Explanation:

For this question, we ought to remember, or know that the half life of carbon 14 is 5730, and that would be vital in completing the calculation

To start with, we use the formula

t(half) = In 2/k,

if we make k the subject of formula, we have

k = in 2/t(half), now we substitute for the values

k = in 2 / 5730

k = 1.21*10^-4 yr^-1

In(A/A•) = -kt, on rearranging, we find out that

t = -1/k * In(A/A•)

The next step is to substitite the values for each into the equation, giving us

t = -1/1.21*10^-4 * In(5.4/15.3)

t = -1/1.21*10^-4 * -1.1041

t = 0.943*10^4 year

8 0
4 years ago
How does the force on the rifle compare with the force on the bullet, and why?
I am Lyosha [343]
They are equal and opposite (action and reaction)
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Is the force of the mosquito on the car larger than, smaller than, or equal to the force of the car on the mosquito?
Goshia [24]
Equal to, mosquitos are in no way compared to a the force of a vehicle
7 0
3 years ago
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In electric motors and electric generators, which part is responsible for transferring current from the power source to the comm
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The BRUSH <span>In electric motors and electric generators is responsible for transferring current from the power source to the commutator or from the slip rings to where the electricity is needed</span>
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