Meg walks 2 m from her desk to the teacher's desk. From the teacher's desk, she then walks 4 m in the opposite direction to the
classroom door. Which table correctly represents both the distance and displacement of Meg's motion?
2 answers:
Answer:
Distance: 6 m
Displacement: 2 meter to the left
Explanation:
In the picture attached, a representation of the problem is shown.
The distance traveled by Meg is the addition of the first 2 meters from her desk to the teacher's desk and the 4 meters from the teachers desk to the classroom door. That makes a total of 2 m + 4 m = 6 meters.
The displacement made by Meg, taking her desk as a reference, is 2 meters to the left because that is the distance between her desk and the classroom door (see the picture).
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Answer:
Explanation:
Thermal conductivity of glass pane = .8 W / m K
For conduction of heat , the formula is as follows
Q = ; Q is heat conducted in time t by a medium of thickness d , area of cross section A and ( T₁ - T₂ ) is the temperature difference .
Putting the values in the equation
Q =
= 103225.8 W
b )
energy lost in one day
= 103225.8 x 24 x 60 x 60
= .89187 x 10¹⁰ J .