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Kinetic energy = 1/2 (mass) (speed)2 = 1/2 (0.2) (200)2 = 4,000 joules

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What temperature will water boil in a town located in a 1000m above sea level?

Water will boil at a lower temperature in a town located at 1000m above sea level, typically around 95°C instead of the standard 100°C at sea level. This is because atmospheric pressure decreases with higher elevations, causing water to boil at a lower temperature.


How long does it take for sound to travel 1000m?

Sound travels at approximately 343 meters per second in air at room temperature. Therefore, it would take about 2.9 seconds for sound to travel 1000 meters in air.


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What is the maximum range of infrared rays?

Infrared rays have a range of wavelengths from 700 nanometers to 1 millimeter, corresponding to frequencies of 300 GHz to 430 THz. This range is typically divided into near-infrared, mid-infrared, and far-infrared bands, each with different applications in science and technology.


A car travels 60 km in 45 minutes A second car travels 3 times the distance in four times the time What is the speed of the second car in meters per second?

The first car's speed is 80 km/h. The second car's distance is 180 km (3 times 60 km) and time is 180 minutes (4 times 45 minutes). Converting the second car's speed to m/s, we have 180 km/180 minutes = 1 km/min = 16.67 m/s.