The surface temperatures of both Venus and Earth are warmer than would be expected on the basis of their respective distances from the Sun. Why is this so?
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The surface temperatures of both Venus and Earth are warmer than would be expected
on the basis of their respective distances from the Sun. Why is this so?
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- Earth's daylight surface disk absorbs about 1047 W per m2 from the Sun. Using 6400 km for the Earth's radius, how much of this radiative power is emitted by each square meter of the spherical Earth? (Compare ratio of disk area to spherical surface area)The average temperature of the atmosphere has increased by 0.4°C over the last thirty years. Estimate how much energy has gone into warming up the planet in this way. Keep in mind that the atmosphere has a mass of 5 × 1018kg, and the specific heat capacity of air is about 1 Jg−1K−1. How do we get to this answer (2×1021J)The weather channel said the current temp in Fairbanks Alaska is 50 degrees F while at the same time the temp in Mexico City was 50 degrees C what is the difference in temp between the two cities in the unit of K ??
- Earth's daylight surface disk absorbs about 1036 W per m2 from the Sun. Using 6400 km for the Earth's radius, how much of this radiative power is emitted by each square meter of the spherical Earth? Hint: Compare the ratio of the disk area to the spherical surface area.The following heat transfer formula quantifies the radiation emitted from the Sun: P = eoA(T4 – T?) Equation 5 where: P= radiated power (Watts) e = emissivity (=1 for ideal radiator; unitless) o = Stefan-Boltzmann constant = 5.67x10-8 W/m2-K+ A = radiating area (m²) T= temperature of radiator (Kelvin) Tc = temperature of surroundings (Kelvin) Q3 Using the following values, together with equation 5, calculate the power emitted by the Sun. sun's surface temperature = 5780 K temperature of the environment that the Sun is located in = 4 K emissivity of the Sun = 1 radius of the Sun = 695,700,000 m Stephen-Boltzmann constant o = 5.67 x 10-8 W/m2-K4 Show your work below-you may use the equation editor or insert a picture of your handwritten work.Meteors sometimes strike Earth, converting most of their kinetic energy into heat. If a 90-kg meteor hits the ocean at 2.8x104 m/s and 84% of its kinetic energy goes into heating water, how many kg of water could it warm up by 4.8 °C? Give 1000 kg). your answer in metric tons (1 metric ton
- In contrast to Venus, the coldest temperature yet measured on the surface of any body in the solar system is -235°C. This temperature was detected by Voyager 2 as it passed by Neptune's largest moon, Triton. What is Triton's surface temperature in degrees Fahrenheit and in kelvins? The warmest temperature in Antarctica was recorded at the Vanda Station on the Scott Coast. On January 5, 1974 early summer in the southern hemisphere-a high temperature of 15°C was reached. Express this temperature in degrees Fahrenheit and kelvins. Answer must be given as calculated and then to the side given in significant figure answer formatQuestion 2: Planet Mars Planetary Attribute Albedo Radius Gravitational acceleration Mean distance from sun Surface pressure Symbol α R (km) g (m/s²) D (km) Po (kPa) Earth 0.29 6378 9.8 150 x 106 101 Mars 0.25 3395 3.7 228 x 106 0.6 (a) Calculate an appropriate value for shortwave solar radiation (SM) incident at the top of the Martian atmosphere (answer in W/m²). The corresponding value for Earth, SE = 1360 W/m². (b) Estimate the average surface temperature on Mars (answer in degrees Kelvin) using a suitable radiative energy balance. The greenhouse effect can be neglected for Mars. (c) Estimate the mass of the Martian atmosphere (answer in kg).What is the value of the IR transmission factor (f) for a Venus-like planet, if the measured average surface temperature is 706 K? Assume the following values for the planet: E, = 2.60x10³ W m² and a = 0.71. Would the average temperature increase or decrease if f decreased?
- Pertaining to Lab 3 Q1 a and b, calculate how much radiation is emitted by the Sun and the Earth (assuming the Sun's average surface temperature is 6000K and the Earth's average temperature is 300K). Please put the entire number that you get as your answer and do not write it in scientific notation.On mars, the surface temperature can be 55 F What is this temperatures in Celsius scale? (Hint: T F =(9/5)T C +32)(W/m), in Santa solar radiation into energy- solar radiation (w/m?) 400 300 200 100 time (hrs past midnight) 4 8 12 16 20 ot dengndi lo