An earthquake emits both S waves and P waves which travel at different speeds through the Earth. A P wave travels at 9 000 m/s and an S wave travels at 5000 m/s. If P waves are received at a seismic station 1.00 minute before an S wave arrives, how far away is the earthquake center?
a. 88.9 km
b. 1200 km
c. 675 km
d. 240 km
e. 480 km
c
You might also like to view...
The Sun has a surface temperature of approximately 5800 K. At what wavelength does the maximum energy radiated by the Sun occur?
a. 5800 nm b. 300 nm c. 174 nm d. 500 nm e. 3000 nm
An ideal solenoid is 18.5 cm long, has a circular cross-section 2.20 cm in diameter, and contains 545 equally spaced thin windings
This solenoid is connected in a series circuit with an open switch, a 15.0-? resistor, and a battery of internal resistance 5.00 ? and open-circuit terminal voltage of 25.0 V. (?0 = 4? × 10-7 T ? m/A) (a) What is the maximum amount of energy that the solenoid will store after closing the switch? (b) How long after closing the switch will it take for the stored energy in the solenoid to reach one-half of its maximum value? What will be an ideal response?
100 grams of liquid nitrogen at 77 K is stirred into a beaker containing 200 grams of 5°C water. If the nitrogen leaves the solution as soon as it turns to gas, how much water freezes? (The heat of evaporation of nitrogen is 6.09 cal/gram and the heat of fusion of water is 80 cal/gram.)
Ideal Gas Law: A 0.40-m3 gas tank holds 7.0 moles of ideal diatomic nitrogen gas at a temperature of 290 K. The atomic mass of nitrogen is 14.0 g/mol. What is the pressure of the gas? (R = 8.31 J/mol ? K, 1 atm = 101 kPa)
A. 42 atm B. 37 atm C. 32 atm D. 27 atm E. 22 atm