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baherus [9]
3 years ago
15

Meeta used an elastic tape to measure the length of her window to stitch a curtain. Do you think she will be able to stitch a cu

rtain of correct measurement? Yes/No . Give scientific reason in detail, also explain the correct method to measure the length of her window.
Physics
1 answer:
Yuki888 [10]3 years ago
3 0

Answer:

No

Explanation:

She will not be able to measure the length of her window accurately due to instrumental error from her choice of instrument. The elastic nature of her tape would alter the measurement because it will stretch as she is taking her readings, thus reducing the true measurement of the length of her window.

To measure the length of her window, she could use an inelastic tape rule or a metre rule. These instruments would eliminate instrumental error.

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Calculate the energy transferred from a glass of water in order to just melt 100 g of ice cubes at 0°C.
Ludmilka [50]

Answer:

34000 J or 34 kJ

Explanation:

From the question, The energy needed to just melt the ice cube does not requires any external temperature or change in temperature, Hence it is called  latent heat

By Applying,

Q' = C'm........................ Equation 1

Where Q' = Latent heat, C' = Specific latent heat of fusion of water, m = mass of ice.

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3 years ago
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If the jumping frog can give itself the same initial speed, regardless its direction. how is the maximum vertical height related
DaniilM [7]
A projectile motion is characterized by a motion whose path is alike to that of an arc. It already has its derived equations. For the maximum height H and the maximum range R, the equations are:

H = v₀²sin²θ/2g       ;       R = v₀²sin(2θ)/g

As you can observe, they are almost alike. Since they both contain v₀²/g, let's isolate this term for both equations:

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Equating both equations:
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4 0
3 years ago
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