1. The intensity of a particular earthquake wave is measured to be 1.60 x 106 W/m2...
Two astronauts are 2.0 m apart in their spaceship. One speaks to the other. The conversation is transmitted to earth via electromagnetic waves. The time it takes for sound waves to travel at 348 m/s through the air between the astronauts equals the time it takes for the electromagnetic waves to travel to the earth. How far away from the earth is the spaceship? m
Two astronauts are 1.90 m apart in their spaceship. One speaks to the other. The conversation is transmitted to earth via electromagnetic waves. The time it takes for sound waves to travel at 340 m/s through the air between the astronauts equals the time it takes for the electromagnetic waves to travel to the earth. How far away from the earth is the spaceship?
Two astronauts are, 6.207 m apart in their spaceship, speaking to each other. The conversation is transmitted to Earth via electromagnetic waves traveling at the speed of light. The time it takes for the sounds waves to travel at 343 m/s through the air between the astronauts equals the time it takes for the electromagnetic waves to travel to the Earth. How far away from the Earth is the spaceship?
The intensity of a particular earthquake wave is measured to be 1.9MW/m2 at a distance of 49.0 km from the source. What was the intensity when it passed a point only 1.1 km from the source? Give your answer in giga Watts per square metre, where 1GW/m2=1,000MW/m2=1,000,000,000W/m2. Assume the energy is radiated uniformly in all directions.
The intensity of an earthquake wave passing through the Earth is measured to be 2 5x105 J/(m2 .s) at a distance of 38 km from the source.Part A What was its intensity when it passed a point only 1.0 km from the source?
The intensity of an earthquake wave passing through the Earth is measured to be 20x10 J/(mºs) at a distance of 45 km from the source Part A What was its intensity when it passed a point only 20 km from the source? Express your answer to two significant figures and include the appropriate units. A Value OR? Units Submit RESTA Part B At whatrate did energy pass through an area of 70 m2 at 20 km? Express your answer to...
0.48 12. Two astronauts are m apart in their spaceship. One speaks to the other. The conversation is transmined to earth via electromagnetic waves. The time it takes for sound waves to travel at 343 m/'s through the air between the astronauts equals the time it takes for the electromagnetic waves to travel to the earth. How far away from the Earth is the spaceship? (a) 2.30 m (b) 790 m (c) 4.2x10m (d) 6.9x10Fm (e) 4.5x1010 m 13. Two...
The intensity of an earthquake wave passing through the Earth is measured to be 1.5x106 J/(m².s) at a distance of 42 km from the source. Part A What was its intensity when it passed a point only 2.0 km from the source? Express your answer to two significant figures and include the appropriate units. ВА ? I = Value Units Submit Request Answer Part B At what rate did energy pass through an area of 5.0 m² at 2.0 km...
At our distance from the Sun, the intensity of solar radiation is 1370 W/m2. The temperature of the Earth is affected by the greenhouse effect of the atmosphere. This phenomenon describes the ef- fect of absorption of infrared light emitted by the surface so as to make the surface temperature of the Earth higher than if it were airless. For comparison, consider a spherical object of radius r with no atmosphere at the same distance from the Sun as the...
E (t) = Eo cos (kz-wt) Where k is the wave-number and w is the angular frequency of the wave. Now some scientist tells you that a distant star has been observed to be green in color, with an observed frequency of fobserved 550 THz (terahertz, 1012). She also says that from other factors, it is known that the star should be emitting light with wavelength factual-1800 THz somewhere in the UV spectrum. They ask you to find two things...