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3 years ago

What tool is also known as a "turner"

Chemistry

1 answer:

stepladder [879]3 years ago

6 0

Another tool known as a turner is a Spatula.

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If ice is added to a large fish tank and a small fish bowl, both at the same termperature, the large fish tank's water will cool

Nadya [2.5K]

False
because the smaller bowl of water has less volume to cool off with the ice than the large fish tank

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3 years ago

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allochka39001 [22]

Answer: I believe that B) require target cell receptors to illicit a target cell response, is the right answer.

Explanation:

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3 years ago

A completely reversible heat pump has a COP of 1.6 and a sink temperature of 300 K. Calculate (a) the temperature of the source

sesenic [268]

Answer:

(A) 800 K (B) 2.4 KW

Explanation:

We have given the COP =1.6

The sink temperature $T_L=300K$

We have to find the source temperature, that is $T_H$

(A) We know that COP of the heat pump is given by $COP=\frac{T_H}{T_H-T_L}$

So $1.6=\frac{T_H}{T_H-300}$

$1.6T_H-480=T_H$

$0.6T_H=480$

$T_H=800K$

(B) We have given the work done =1.5 KW

The rate of heat transfer is given by $Q_H=COP\times W=1.6\times 1.5=2.4KW$

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4 years ago

Find the mass of an object on earth if its weight is 100N

Kaylis [27]

Answer:

0.19 kg

8 N

1.964 N

58.86 N

15 kg

Explanation:

w = Weight of an object = 100 N

g = Acceleration due to gravity of Earth = $9.81\ \text{m/s}^2$

m = Mass of an object

Weight is given by

$w=mg\\\Rightarrow m=\dfrac{w}{g}\\\Rightarrow m=\dfrac{100}{9.81}\\\Rightarrow m=10.19\ \text{kg}$

Mass of the object is 0.19 kg

g = $2\ \text{m/s}^2$

m = 4 kg

$w=mg\\\Rightarrow w=4\times 2\\\Rightarrow w=8\ \text{N}$

Weight of the object is 8 N.

m = 200 g

$w=mg\\\Rightarrow w=0.2\times 9.81\\\Rightarrow w=1.964\ \text{N}$

Weight of the object is 1.964 N.

Weight is the force the Earth exerts on an object which is on the surface of the Earth.

m = 6kg

$w=mg\\\Rightarrow w=6\times 9.81\\\Rightarrow w=58.86\ \text{N}$

The force of the object is 58.86 N.

w = 150 N

a = g = $10\ \text{m/s}^2$

$m=\dfrac{w}{g}\\\Rightarrow m=\dfrac{150}{10}\\\Rightarrow m=15\ \text{kg}$

Mass of the object is 15 kg.

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3 years ago

In order for a gas to condense to a liquid, the attraction between its molecules _____.

yaroslaw [1]

Answer:

._______.

Explanation:

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3 years ago

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