Answer: 439.01 J
Explanation:
The Kinetic Energy at the top + Potential Energy at the top + Work Done = Kinetic Energy at the bottom + Friction loss
1/2mv² + mgh + W = 1/2 mv² + Fd
1/2 * 56.5 * (1.4)² + 56.5 * 9.8 * 2.05 + W = 1/2 * 56.5 * (6.3)² + 41 * 12.4
1/2 * 56.5 * 1.96 + 56.5 * 9.8 * 2.05 + W = 1/2 * 56.5 * 39.69 + 41 * 12.4
55.47 + 1135.085 + W = 1121.243 + 508.4
1190.555 + W = 1629.643
W = 1629.643 - 1190.555
W = 439.088
W = 439.09 J
Answer:
un país necesita ser capaz de importar electricidad porque es un dios para su economía y puede afectar en gran medida la cantidad de personas que tienen trabajo.
It can impact the waters by polluting it and impact fish life's and if we have a drought we can't use this power source
The answer to the first question is -1.5 m/s^2
<span>The temperature of
water 20 minutes after heating depends on its elevation and quantity of water
being boiled. The temperature of boiling water is lower at high elevation and
the more water you put on the kettle, the longer it boils. Approximately, 20
minutes after heating water, the temperature already reached 120 degree Celsius
for it takes 35 minutes to achieve the boiling point of water, which is 100
degrees Celsius.</span>