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The Earth has a radius of 6.38 × 10^6 m and is 1.49 × 10^11 meters from the Sun. If the intensity of solar electromagnetic radiation at the top of the Earth's atmosphere is 1330 W/m^2, what is the total radiated power output of the Sun?
when a 2.75kg fan having blades 18.5 cm long is turned off, its angular speed decreases uniformly from 10 rad to 6.3 rad/s in 5 sec. Through what angle does it turn
An astronaut travels from a distant star to the Earth at speed 0.992c. What is the distance from the star to the Earth as measured by an observer on the Earth
A 50.0-g sample of a conducting material is all that is available. The resistivity of the material is measured to be 11× 10 -8 ?m, What must be the diameter of the wire
The box of a well-known breakfast cereal states that one ounce of the cereal contains 107 Calories (1 food Calorie = 4186 J). what is the weight of the heaviest barbell
A certain cavity has a temperature of 1150 K. (a) At what wavelength will the intensity of the radiation inside the cavity have its maximum value? [Do NOT need the answer to part (a); it is 2.52 mu m] (b) As a fraction of the maximum intensity, what ..
Oppositely charged parallel plates are separated by 4.31 mm. A potential difference of 600 V exists between the plates. (a) What is the magnitude of the electric field between the plates
A freezer has a coefficient of performance of 6.30. It is advertised as using 446 kWh/yr. how much energy does it use in a single day
A small rubber ball is launched by a compressed-air cannon from ground level with an initial speed of 18.9 m/s directly upward. How long does it take to reach the maximum height
A parallel-plate capacitor is constructed with circular plates of radius 6.5×10?2 m . The plates are separated by 0.21 mm, find the value of the dielectric constant
The Earth's nearly circular orbit around the sun has a diameter of 300 million km. Assuming it takes 365 days for the Earth to make one complete trip around the sun, find the acceleration of the Earth toward the sun.
A guitar string of diameter 0.6 mm and length 0.74 m is subject to a tension of 140 N. what is Young's modulus of the string
The average coefficient of volume expansion for carbon tetrachloride is 5.81 10-4 (°C)?1. If a 48.5-gal steel container is filled completely with carbon tetrachloride when the temperature is 10°C, how much will spill over when the temperature rises t..
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