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sammy [17]
3 years ago
5

The dimensions of a room are 16.40 m long, 4.5 m wide and 3.26 m high. What is the volume of the room in cubic meters? Express y

our answer in scientific notation.

Physics
1 answer:
anyanavicka [17]3 years ago
3 0

Answer:

the volume of the room is 240.588 meters3

The picture shows the scientific notation

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Looking straight downward into a rain puddle whose surface is covered with a thin film of gasoline, you notice a swirling patter
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Answer:

 

Explanation:

Point beneath you forms a beautiful iridescent green

refractive index of Gasoline n=1.38

Wavelength of Green light is \lambda =540\ nm

Here light first traverse from air(n=1) to gasoline , it reflects from  front surface of gasoline(n=1.38) so it suffers a phase change. After this light reflect from rear surface of gasoline and there is a decrease in refractive index(n=1.38 to n=1.33), so there is no phase change occurs .

For constructive interference

2t=(m+\frac{1}{2})\cdot \frac{\lambda }{n}

here t= thickness of gasoline film

n=refractive index

for m=0

t=\frac{\lambda }{4n}

t=\frac{540}{4\times 1.38}

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While hovering motionless 3.0 meters an asteroid, a small
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what was the initial temperature is 250 calories reply .1 kg of gold the final temperature of the gold was 175°c ? the specific
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Answer:

115.2^{\circ}C

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When an amount of energy Q is supplied to a substance of mass m, the temperature of the substance increases by \Delta T, according to the equation

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where C_s is the specific heat capacity of the substance.

In this problem, we have:

Q=250 \cdot 4.184 =1046 J is the amount of heat supplied to the sample of gold

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\Delta T = \frac{Q}{m C_s}=\frac{1046}{(100)(0.175)}=59.8^{\circ}

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3 0
3 years ago
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