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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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Explanation:

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3 years ago
A basketball player throws a chall -1 kg up with an initial speed of his hand at shoulder height = 2.15 m Le gravitational poten
Talja [164]

Complete Question:

A basketball player tosses a basketball m=1kg straight up with an initial speed of v=7.5 m/s. He releases the ball at shoulder height h= 2.15m. Let gravitational potential energy be zero at ground level

a)  Give the total mechanical energy of the ball E in terms of maximum height hn it reaches, the mass m, and the gravitational acceleration g.

b) What is the height, hn in meters?

Answer:

a) Energy = mghₙ

b) Height, hₙ = 5.02 m

Explanation:

a) Total energy in terms of maximum height

Let maximum height be hₙ

At maximum height, velocity, V=0

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Energy = mghₙ

b) Height,  hₙ in meters

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mghₙ = m(gh + 1/2 V^2)

Divide both sides by mg

hₙ = h + 0.5 (V^2)/g

h = 2.15m

g = 9.8 m/s^2

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hₙ = 2.15 + 0.5(7.5^2)/9.8

hₙ = 2.15 + 2.87

hₙ = 5.02 m

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3 years ago
How to calculate wavelength in m when you know the frequency?
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Answer:

Check the explanation

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2 years ago
Find focal length of a concave mirror having 40 cm radius of curvature​
nignag [31]

Answer:

The focal length of the given spherical mirror is 20cm.

Explanation:

plz follow me

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