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4 years ago

15

In a busy restaurant kitchen, the dining room by a heavy swinging door. The hinge of the swinging door experiences ________ torq

ue as it is opened and closed.
A) all
B) half
C) none
D) quarter

2 answers:

stepladder [879]4 years ago

4 0

A) all because of the movement, and friction involved with the movement.

tatuchka [14]4 years ago

4 0

Answer:

I think that none torque is correct

Explanation:

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18°C = _____ <br>-255 K<br> 0 K <br>18 K <br>291 K

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18°C answer is 291 k

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Nervous tissue is made up of neuroglia and what other type of cell?

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3 years ago

Cart 1 has a mass of 1 kg. Cart 2 has a mass of 2 kg. They are pushed apart by a spring. The spring exerts 2N of force into cart

almond37 [142]

The force exerted on the cart 2 during the collision is 2 N.

The given parameters:

<em>Mass of cart 1 = m1 = 1 kg</em>
<em>Mass of cart 2 = m2 = 2kg</em>
<em>Force applied on cart 1 = 2 N</em>

According to Newton's third law of motion, action and reaction are equal and opposite. The force exerted on cart 1 is equal in magnitude to the force exerted on cart 2 but in opposite direction.

$F_1 = -F_2$

$F_2 = -F_1\\\\F_2 = -2 \ N\\\\|F_2| = 2 \ N$

Thus, the force exerted on the cart 2 during the collision is 2 N.

Learn more about Newton's third law of motion here: brainly.com/question/13874955

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3 years ago

The world’s supply of fossil fuels will _____.

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The world’s supply of fossil fuels will dwindle slowly until a replacement source is found that provides the same power.

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3 years ago

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When 0.511 g of sodium metal is added to an excess of hydrochloric acid, 5310 J of heat are produced. What is the enthalpy of th

Mrac [35]

Answer:

The the enthalpy of the reaction is 241.36 KJ.

Explanation:

Given that,

Weight of sodium = 0.511 g

We need to calculate the number of moles

Using formula of moles

$moles=\dfrac{given\ mass}{molar\ mass}$

$moles=\dfrac{0.511}{23}$

$moles= 0.022$

We need to calculate the energy in 1 mole

In 0.022 moles of sodium metal = 5310 J

In 1 moles of sodium metal = $\dfrac{5310}{0.022}$

The Energy in 1 moles of sodium is 241363.63 J.

Hence, The the enthalpy of the reaction is 241.36 KJ.

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3 years ago