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andre [41]
3 years ago
11

I need help on this

Physics
1 answer:
ZanzabumX [31]3 years ago
6 0
What is the question asking?
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What can you infer from the fact that although CFC's have been banned, refrigerators and aerosol cans are still being sold?
oksian1 [2.3K]
It would be "Researchers found environmental safe replacements for CFC's"
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3 years ago
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If an object is to rest on an incline without slipping, then friction must equal the component of the weight of the object paral
leonid [27]

Answer:

\theta = tan^{-1}\mu

Explanation:

As we know that if the object is placed on the inclined plane then the force of friction on the object is counterbalanced by the component of the weight of the object along the inclined plane.

So we can say

F_f = mgsin\theta

now if we increase the inclination of the plane then the component of the weight weight along the inclined plane will increase and hence the friction force will also increase.

As we know that the limiting value or the maximum value of friction force at the static condition is given by

F_f = \mu N

N = mg cos\theta

so we have

F_f = \mu (mg cos\theta)

so we will have

mg sin\theta = \mu (mg cos\theta)

so now we have

tan\theta = \mu

so maximum possible angle of the inclined plane is

\theta = tan^{-1}\mu

3 0
3 years ago
What is the most likely reason that Mendeleev placed tellurium before iodine?
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<span>Mendeleev observed that tellurium has chemical properties like other elements in its group, and he did not know that neutrons cause the greater atomic mass is the most likely reason.</span>
4 0
3 years ago
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jack wants to find out which laundry detergent cleans the best ( Gain, Tide, or Purex). So, he takes a cotton sheet and cuts it
dezoksy [38]

the independent variables are the different laudry detergent

the dependent variable is color of the cloth after washing

the control variables are the amount of water added and by washing one cloth b just water

<span>hypothesis: the cloth washed with laundry detergent is cleaner than the cloth that is just washed by water. </span>

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A train stops suddenly at the train station and everyone in the cars continue moving forward.
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Answer:

nope

Explanation:

5 0
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