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yKpoI14uk [10]
3 years ago
9

In a “minute to win it” game, cards are placed between cups to stack them. The contestant then pulls the card out in hopes that

they will end with a set of stacked cups. Why does this work?
There is no friction between the card and the cup.


Inertia will keep the top cup from moving very far. Gravity will pull one cup on top of another.


The opening of the cup is so much bigger than the bottom, even though the cup moves they will both be stacked together.


Both cups are moved the same amount by the friction between them and the card.
Physics
2 answers:
Luden [163]3 years ago
4 0

Answer:

There is no friction between the card and the cup.

Explanation:

lubasha [3.4K]3 years ago
3 0

Answer:

The answer option to your question is A) - There is no friction between the card and the cup.

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One more thing—you posted this in the physics section rather than biology.

8 0
3 years ago
A 0.10 kg ball of dough is thrown straight up into the air with an initial speed of 15 m/s.
Reptile [31]
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6 0
4 years ago
b. A string is wrapped around a pulley of radius 0.05 m and moment of inertia 0.2 kg  m2. If the string is pulled with a force
Oduvanchick [21]

Answer:

f = 8 N

Explanation:

Data provided in the question

Radius of the pulley  = r = 0.05 m

Moment of inertia = (I) = 0.2 kg.m^{2}

Angular acceleration = ∝ = 2 rad/sec

Based on the above information

As we know that

Torque is

= force \times  radius

= f \times r

And,

Torque is also

= moment\ of\ inertia \times angular\ acceleration

= I \times \alpha

So,

We can say that

f \times r = I \times \alpha

f \times 0.05 = 0.2 \times 2

0.05f = 0.4

f = 8 N

We simply applied the above formulas

8 0
4 years ago
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Answer:

solar eclipse

Explanation:

because at that time, the moon completely covers the path and casts its shadow on earth because it is present between sun and earth's path. so, solar eclipse occurs.

hope it helps :)

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sergey [27]

Answer:

A

Explanation:

4 0
3 years ago
Read 2 more answers
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