A 2 km diameter thunderstorm produces 4.2 cm of rainfall in 4 hours. What is the power...

A 2 km diameter thunderstorm produces 4.2 cm of rainfall in 4 hours. What is the power production from latent heat of condensation of this storm, in megawatts? A megawatt is a million watts and the average coal-fired plant in the US produces 677 megawatts.

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genius_generous answered 1 year ago

A copper transmission cable 100 km long and 10.0 cm in diameter carries a current of...

A copper transmission cable 100 km long and 10.0 cm in diameter carries a current of 125 A. The copper resistivity is1.72 × 10-8 Ω.m. (a) What is the potential drop across the cable? (b) How much electrical energy is dissipated as thermal energy per hour? (c) What temperature increase is required to increase the cable resistance by 5.00% ? [Thermal resistivity coefficient of copper at 25 deg C is 0.00393 (°C)-1]

If the 2.00 cm diameter inlet tube narrows to 1.00 cm in diameter, what is the...

If the 2.00 cm diameter inlet tube narrows to 1.00 cm in diameter, what is the pressure drop in the narrow section for the 2.16 m/s airflow in the 2.00 cm section? (Suppose the air density is 1.25 kg/m3.) a. 20.3 Pa b. 11.7 Pa c. 45.7 Pa d. 43.7 Pa Two rigid objects, a ring and solid disc, have the same mass, radius and angular velocity. If the same braking torque is applied to each one, which takes longer...

Q4. A copper transmission cable 100 km long and 10.0 cm in diameter carries a current...

Q4. A copper transmission cable 100 km long and 10.0 cm in diameter carries a current of 125 A. The copper resistivity is 1.72 × 10-8 Ω.m. (a) What is the potential drop across the cable? (b) How much electrical energy is dissipated as thermal energy per hour? (c) What temperature increase is required to increase the cable resistance by 5.00% ? [Thermal resistivity coefficient of copper at 25 deg C is 0.00393 (°C)-1]

What is the diameter of the radar beam at a distance of 30.0 km

a radar for tracking aircraft broadcasts at 12 GHz microwave beam from a 2.0 m-diameter circular radar antenna. From a wave perspective, the antenna is a circular aperture through which the microwaves diffract. A. what is the diameter of the radar beam at a distance of 30 km? B. if the antenna emits 100 kW of power what is the average microwave intensity at 30 km?

A 1.60 m cylindrical rod of diameter 0.550 cm is connected to a power supply that...

A 1.60 m cylindrical rod of diameter 0.550 cm is connected to a power supply that maintains a constant potential difference of 17.0 V across its ends, while an ammeter measures the current through it. You observe that at room temperature (20.0 ∘ C ) the ammeter reads 18.8 A , while at 92.0 ∘C it reads 17.3 A . You can ignore any thermal expansion of the rod. Part A Find the resistivity and for the material of the...

A cylindrical shaped potato with length 2 cm and a diameter of 0.5 cm was dried...

A cylindrical shaped potato with length 2 cm and a diameter of 0.5 cm was dried at a temperature of 65 o C in a convective oven for 24 h, if the surface temperature of the potato remained at 62 o C throughout the drying operation, describe the different changes that occurs during the constant and falling rate periods

Exercise 25.11 A 1.70 m cylindrical rod of diameter 0.550 cm is connected to a power...

Exercise 25.11 A 1.70 m cylindrical rod of diameter 0.550 cm is connected to a power supply that maintains a constant potential difference of 17.0 V across its ends, while an ammeter measures the current through it. You observe that at room temperature (20.0 ∘C) the ammeter reads 18.2 A , while at 92.0 ∘C it reads 17.4 A . You can ignore any thermal expansion of the rod. Part B Find the temperature coefficient of resistivity at 20 ∘C...

A copper pipe of diameter 3.5 cm and wall thickness 4 mm is used in an...

A copper pipe of diameter 3.5 cm and wall thickness 4 mm is used in an antibiotic factory to convey hot water a distance of 60 m at a flow rate of 20 L/s. The inlet temperature of the water is 90°C. Due to heat losses to the atmosphere, the outlet water temperature is 84°C. The ambient temperature is 25°C. The inside of the pipe is covered with a layer of fouling with a fouling factor of 7500 W/m2°C. What...

A tube 12 cm in diameter is carrying engine oil a distance of 4 meters from...

A tube 12 cm in diameter is carrying engine oil a distance of 4 meters from barrel to outlet. If the pressure difference between the ends of the tube is 1064.28 atm , what is the oil flow rate?

a. If a 6 cm diameter cylinder containing 2 g of an ideal gas at 25o...

a. If a 6 cm diameter cylinder containing 2 g of an ideal gas at 25o C is fitted with a 5 kg piston with a 20 kg weight on the piston, calculate the pressure and volume of the ideal gas if the atmospheric pressure is 1 atm. If the 20 kg weight is removed, provide detailed comments without further calculations on what would happen. You may assume a molecular weight of 28 for the gas. b. Calculate the energy...

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