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MissTica
2 years ago
12

9

Physics
1 answer:
Kamila [148]2 years ago
7 0

Answer is in the file below

tinyurl.com/wpazsebu

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A strip of copper metal is riveted to a strip of aluminum. the two metals are then heated. the coefficient of linear expansion o
olganol [36]
We can base this on the equation of thermal expansion.

ΔL = L₀αΔT
where
ΔL is the expansion of length upon heating
L₀ is the initial length
α is the coefficient of linear expansion
ΔT is the temperature difference

So, if α for Aluminum is greater than α for Copper, then after heating, aluminum would be longer than copper.
4 0
3 years ago
How do you find the value of e?
Nadusha1986 [10]
<h3>Answer: 22.48°</h3><h3 /><h3>Explanation:</h3>

refractive index = sin i / sin e

where i is the angle of incidence

e is the angle of refraction

1.5 = sin 35 / sin e

1.5 = 0.5736/sin e

sin e = 0.5736/ 1.5

sin e = 0.3824

e = 22.48°

<h3 />

3 0
2 years ago
A thin flexible gold chain of uniform linear density has a mass of 17.1 g. It hangs between two 30.0 cm long vertical sticks (ve
Lemur [1.5K]

The Force on the left hand pole, F' = 0.167N

<h3>What is the force on the left hand pole?</h3>

Force is an agent which produces a change in the motion or state of an object.

Force is a vector quantity.

The general force is calculated as follows:

F = mg/sinθ

m = 17.1 g = 0.0171 kg

g = 9.81 m/s²

θ = 45°

F = 0.0171 * 9.81/sin45

F = 0.237 N

Force on the left hand pole, F' = Fcosθ

F' = 0.237 * cos 45

F' = 0.167N

In conclusion, the force on the left hand pole is the horizontal component of force.

Learn more about force at: brainly.com/question/141439

#SPJ1

5 0
2 years ago
Why is the work output of a machine never equal to the work input? A. Some work input is used to overcome friction. B. Input dis
SVETLANKA909090 [29]
The answer is A. <span>Some work input is used to overcome friction. </span>
6 0
3 years ago
Read 2 more answers
This nutrient can be hidden in food and has twice as many calories as other nutrients
vfiekz [6]
Protein has 4 cals carbs have 4 too. Fat however has 9. 
6 0
3 years ago
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