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

Amanda K answered 1 year ago

Next > < Previous

Related Solutions

The P-wave from an earthquake arrives at a seismic station at 10:20 am and the S-wave...

The P-wave from an earthquake arrives at a seismic station at 10:20 am and the S-wave arrives at 10:25 am. Assuming the P-wave velocity is 5 km s−1, and that Poisson’s ratio is 0.25, compute the time at which the earthquake occurred and its epicentral distance (in degrees) from the seismic station.

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...

An earthquake emits both S-waves and P-waves which travel at different speeds through the Earth. A...

An earthquake emits both S-waves and P-waves which travel at different speeds through the Earth. A P=wave travels at 9000 m/s and an S-wave travels at 5000 m/s. If the P-waves are received at a seismic station 1 minute before an S-wave arrives, how far away is the earthquake center?

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...

There are two types of seismic waves associated with every earthquake, called P and S waves....

There are two types of seismic waves associated with every earthquake, called P and S waves. They travel in every direction away from the source of an Earthquake called the epicenter. Because they each travel with different speeds, seismologists can determine the distance from a seismic station to an epicenter. An earthquake occurred in an area when a P wave travels at 5 km/s and the S wave travels at 3 km/s. A seismic station measures an SP lag time...

Ball A with a mass of 2.0 kilograms is traveling at 8.0 m/s strikes Ball B...

Ball A with a mass of 2.0 kilograms is traveling at 8.0 m/s strikes Ball B with a mass 5.0 kilograms which is at rest. After the collision, Ball A moves away at an angle of 40.0 degrees above the x-axis and Ball B moves away at an angle of -20.0 degrees below the x-axis. What are the final velocities of each ball? Draw and label a sketch of the problem.

The wave functions of two waves traveling in the same direction are given below. The two...

The wave functions of two waves traveling in the same direction are given below. The two waves have the same frequency, wavelength, and amplitude, but they differ in their phase constant. y1 (x,t) = 2 sin⁡(2πx ‒ 20πt), and y2 (x,t) = 2 sin(2πx ‒ 20πt + φ), where, y is in centimetres, x is in meters, and t is in seconds. Assume that the two waves start to propagate at the same instant, t_0,1 = t_0,2 = 0 sec,...

A 790-kg two-stage rocket is traveling at a speed of 6.60×103 m/s away from Earth when...

A 790-kg two-stage rocket is traveling at a speed of 6.60×103 m/s away from Earth when a predesigned explosion separates the rocket into two sections of equal mass that then move with a speed of 2.80×103 m/s relative to each other along the original line of motion What is the speed of each section (relative to Earth) after the explosion? Express your answers using three significant figures separated by a comma. V1,V2= What are the direction of each section (relative...

Subjects