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defon
2 years ago
12

A 15. 0 cm object is 12. 0 cm from a convex mirror that has a focal length of -6. 0 cm. What is the height of the image produced

by the mirror? –5. 0 cm 7. 5 cm -7. 5 cm 5. 0 cm.
Physics
1 answer:
ipn [44]2 years ago
6 0

Answer:

–5. 0 cm

Explanation:

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A space station, in the form of a wheel 119 m in diameter, rotates to provide an "artificial gravity" of 2.20 m/s2 for persons w
Rina8888 [55]
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</span> a=v^2/r 
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</span></span><span> After you get "v," plugged that into T=2 pi r/ v. This will give you the 1rev per sec.
</span> T=2 pi r/ v= T=(2)*(pi)*(59.5)/(11.44)= <span> <span>32.68 rev/s
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5 0
3 years ago
A kite is 100m above the ground. if there are 200m of string out what is the angle between the string and the horizontal? (assum
jeka57 [31]

Answer :  The angle between the string and the horizontal is 30 degrees

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Let the angle between the string and the horizontal be theta.

Now  sin (Theta) = opposite side/hypotenuse

                             =  100/200 = 1/2

Therefore Theta = Sin ⁻¹ ( 1/2 )

Theta = 30 degrees

4 0
3 years ago
Three observers watch a train pull away from a station toward the right of the platform. Observer A is in one of the train’s car
juin [17]

Observer A is moving inside the train

so here observer A will not be able to see the change in position of train as he is standing in the same reference frame

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So here observer B will see the actual motion of train which is moving in forward direction away from the platform

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So the distance between them will decrease at faster rate

Now as per Newton's II law

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Now if train apply the brakes the net force on it will be opposite to its motion

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so here acceleration negative will show that train will get slower and its distance with respect to us is now increasing with less rate

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3 years ago
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creativ13 [48]

Given:

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Where v is the final velocity.

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Y_Kistochka [10]

It is an important part of many cells and processes such as amino acids, proteins and even our DNA. It is also needed to make chlorophyll in plants, which is used in photosynthesis to make their food.

Hope this helps! ;)

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3 years ago
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