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malfutka [58]
2 years ago
13

1. Gwen exerts a 16 N horizontal force as she pulls a 32N sled across a cement

Physics
1 answer:
PSYCHO15rus [73]2 years ago
5 0

Answer:

3.6 N   Kinetic friction

Explanation:

3 )   Ff = uk * Fn = 3.6 N

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A helium balloon containing 12m³ of gas at a pressure of 120kPa is released into the air. Assuming that the temperature is const
cluponka [151]

Answer:

36 m³

Explanation:

From gas laws, at a constant temperature, the product of volume and pressure are directly proportional hence expressed as p1v1=p2v2 where p is pressure while v represent volume. Subscripts 1 and 2 represent the initial and respectively. Making v2 the subject then

v2=\frac {p1v1}{p2}

Substituting 120 kpa for P1, 12m³ for V1 and 40 kpa for p2 then

v2=\frac {120 Kpa\times 12}{40 kpa}=36 m^{3}

Therefore, the volume will be 36 m³

6 0
3 years ago
What is described as the flow of charged particles?
rodikova [14]

Answer:

An electric current

Explanation:

8 0
3 years ago
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On what factors does the quantity of heat of an object depend​
Kobotan [32]

Answer:

The quantity of heat given to body depends on: (i) The mass of the body, (ii) The rise (or fall) in the temperature of the body, and (iii) Nature of the material of the body.

Explanation:

Hope this helps

have a great day

~Zero

5 0
3 years ago
*PLEASE HELP WILL GIVE BRAINLIEST*
levacccp [35]

Answer: The order is 2,1,5,4,3

Explanation: Hope This helps.

3 0
3 years ago
Group 7A of the periodic table contains the?
olga2289 [7]

The correct answer is A. Most reactive non metals.

Firstly if some one knows how to read the periodic table he would have no confusion in deciding whether group 7 has metals or non metals. Group 7 contains non metals so basically we can easily cancel out two options of metals.

Secondly group 7 non metals are the most reactive non metals as they need only one electron in order to complete their valence shell and become stable.


4 0
3 years ago
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