Question

In: Other

An earthquake P wave traveling at 7.7km/s strikes a boundary within the Earth between two kinds...

An earthquake P wave traveling at 7.7km/s strikes a boundary within the Earth between two kinds of material.

If it approaches the boundary at an incident angle of 44? and the angle of refraction is 33?, what is the speed in the second medium?

Express your answer to two significant figures and include the appropriate units.

Solutions

Expert Solution

we have

sin i /sinr = v1/v2

v2 = v1 sin r/sini

v2 = 7.7 (sin33/sin44) km/s

v2 = 6.04km/s


Related Solutions

The intensity of an earthquake wave passing through the Earth is measured to be 2.5×106 J/(m2⋅s)...
The intensity of an earthquake wave passing through the Earth is measured to be 2.5×106 J/(m2⋅s) at a distance of 47 km from the source. What was its intensity when it passed a point only 1.0 kmkm from the source? Express your answer to two significant figures and include the appropriate units. At what rate did energy pass through an area of 4.0 m2m2 at 1.0 kmkm ? Express your answer to two significant figures and include the appropriate units.
The intensity of an earthquake wave passing through the Earth is measured to be 3.0 X...
The intensity of an earthquake wave passing through the Earth is measured to be 3.0 X 106 J/m2 s at a distance of 54 km from the source. (a) What was its intensity when it passed a point only 1.0 km from the source? (b) At what rate did energy pass through an area of 2.0m2 at 1.0 km?  
The intensity of an earthquake wave passing through the Earth is measured to be 3.0 X...
The intensity of an earthquake wave passing through the Earth is measured to be 3.0 X 106 J/m2 s at a distance of 54 km from the source. (a) What was its intensity when it passed a point only 1.0 km from the source? (b) At what rate did energy pass through an area of 2.0m2 at 1.0 km?  
A light ray strikes the perfectly smooth boundary between two different materials. The index of refraction...
A light ray strikes the perfectly smooth boundary between two different materials. The index of refraction of the material before the boundary is lower than that of the material after the boundary. On the basis of this information, the light ray will be a. partially transmitted in a direction deviating more from the normal and partially reflected. b. partially transmitted in a direction deviating less from the normal and partially reflected. c. partially transmitted exactly in the same direction and...
Given two wave that has the same amplitude, frequency and direction that they are traveling in,...
Given two wave that has the same amplitude, frequency and direction that they are traveling in, BUT they have a phase that is a difference of 2Pi. When one adds both waves up we get: a) Nothing b) A wave with twice the wavelength of the original c) A wave with twice the amplitude of the original d) A wave with twice the frequency of the original e) None of the above
P and S waves from an earthquake travel at different speeds, and this difference helps in...
P and S waves from an earthquake travel at different speeds, and this difference helps in locating the earthquake “epicenter” (where the disturbance took place). (A) If an earthquake occurs and these two waves arrive at a particular seismic station with the P wave 2.0 min ahead of the S wave, then how far away was the earthquake? Assume typical speeds of 8.5 km/s and 5.5 km/s for P and S waves, respectively. For part A i found 1.9 x...
S and P waves from an earthquake travel at different speeds, and this difference helps in...
S and P waves from an earthquake travel at different speeds, and this difference helps in the determination of the earthquake "epicenter" (where the disturbance took place). (a) Assuming typical speeds of 8.0 km/s and 5.7 km/s for P and S waves, respectively, how far away did the earthquake occur if a particular seismic station detects the arrival of these two types of waves 5.0 min apart? 5947840 KM IS INCCORECT WHAT IS THE CORRECT ANSWER?   km (b) Is one...
To see how two traveling waves of the same frequency create a standing wave. Consider a...
To see how two traveling waves of the same frequency create a standing wave. Consider a traveling wave described by the formula y1(x,t)=Asin(kx??t). This function might represent the lateral displacement of a string, a local electric field, the position of the surface of a body of water, or any of a number of other physical manifestations of waves. Part C Find ye(x) and yt(t). Keep in mind that yt(t) should be a trigonometric function of unit amplitude. Express your answers...
When reaching a boundary between two media, an incident ray is partially reflected and partially refracted....
When reaching a boundary between two media, an incident ray is partially reflected and partially refracted. The ray is travelling from media 1 to media 2. The indexes of refraction for the two media are n1 and n2, respectively. At what angle of incidence is the reflected ray perpendicular to the refracted ray? Express your answer in terms of the variables n1 and n2.
Two automobiles collide. One automobile of mass 1.13 x 103 kg is initially traveling at 25.7m/s...
Two automobiles collide. One automobile of mass 1.13 x 103 kg is initially traveling at 25.7m/s [E]. The other automobile of mass 1.25 x 103 kg has an initial velocity of 13.8 m/s [W]. The vehicles become attached during the collision             (a) Determine the magnitude and direction of the change in momentum for each automobile in question 7.             (b) How are these two quantities related?             (c) What is the total change in the momentum of the two...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT