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DaniilM [7]
3 years ago
11

To move a heavy couch across a carpeted floor what could be used to decrease the frictional force

Physics
2 answers:
vitfil [10]3 years ago
7 0

Use a piece of cardboard

aleksklad [387]3 years ago
3 0

Put a lubricant between the surface of the object and the floor. use round objects, like pencils, to decrease the friction and push the refrigerator over the pencils

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Which of the following statements about planetary satellites is true? all planetary satellites are as large as our moon or bigge
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Write answers with significant figures:<br>a) 17.35 g +8.498 g​
Genrish500 [490]

Answer:

25.9 g

Explanation:

= 17.35

8.498

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= 25.848 g = 25.85 g = 25.9 g

*so sorry if wrong

6 0
2 years ago
What kind of friction is occurring between a pencil and desktop when you flick the pencil?
DanielleElmas [232]
The third one sliding friction
Explanation:
8 0
2 years ago
A camera takes a properly exposed photo with a 4.0 mm diameter aperture and a shutter speed of 1/1000 s. If the photographer foc
hoa [83]

Answer:

option E

Explanation:

given,

diameter = 4 mm

shutter speed = 1/1000 s

diameter of aperture = ?

shutter speed = 1/250 s

exposure time to the shutter time

E V = log_2(\dfrac{N^2}{t})

N is the diameter of the aperture and t is the time of exposure

now,

log_2(\dfrac{N^2}{t_1})=log_2(\dfrac{N^2}{t_2})

\dfrac{N_1^2}{t_1}=\dfrac{N_2^2}{t_2}

inserting all the values

\dfrac{4^2}{1000}=\dfrac{N_2^2}{250}

      N₂² = 4

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hence , the correct answer is option E

4 0
3 years ago
Question 1.1. What are the properties of elements related to? (Points : 1)
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5 0
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