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a_sh-v [17]
3 years ago
14

Calculate the speed of a car that has traveled 300 miles in 6 hours.

Physics
1 answer:
PilotLPTM [1.2K]3 years ago
5 0
300 miles / 6 hours = 50 miles per hour
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A lightbulb consumed 1100J in 30 minutes. Find Power, resistance, and calculate energy in kWh
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Explanation:

30 minutes is 1800 seconds.

Power = energy / time

P = 1100 J / 1800 s

P = 0.611 W

Converting the energy from J to kWh:

1100 J × (1 Ws / 1 J) × (1 kW / 1000 W) × (1 h / 3600 s) = 3.06×10⁻⁴ kWh

To find resistance, you need to be given either the voltage or the current.

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Which geologic feature would most likely be represented by contour lines drawn far apart from one another?
Anna [14]
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3 years ago
If the skater coasts only around 65 degrees of the circle, find the magnitude of his displacement vector.
baherus [9]
We are given a skater who coasts only around 65 degrees of the circle. The magnitude of the vector is determined by converting 65 degrees to radians:

65//180 = 0.36 radians

The displacement of the vector is 65 degrees east. 
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4 years ago
The rings of Saturn occupy the region inside Saturn's Roche limit.
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7 0
3 years ago
Unpolarized light passes through three polarizing filters. The first one is oriented with a horizontal transmission axis, the se
Xelga [282]

Answer:

10.028%

Explanation:

\theta = Angle between polarizer

The polarized light after passing through first polarizer

I=\frac{I_0}{2}

The polarized light after passing through second polarizer

I_2=\frac{I_0}{2}cos^2\theta\\\Rightarrow I_2=\frac{I_0}{2}cos^231.8\\\Rightarrow I_2=0.36115I_0

The polarized light after passing through third polarizer

I_3=I_2cos^2(90-31.8)\\\Rightarrow I_3=0.36115I_0cos^2(90-31.8)\\\Rightarrow I_3=0.10028I_0

\frac{I_3}{I_0}\times 100=\frac{0.10028I_0}{I_0}\times 100\\ =10.028\ \%

The percent of the light gets through this combination of filters is 10.028%

4 0
3 years ago
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