When an earthquake occurs, two types of sound waves are generated and travel through the earth. the primary, or p, wave has a speed of about 8.0 km/s and the secondary, or s, wave has a speed of about 4.5 km/s. a seismograph, located some distance away, records the arrival of the p wave and then, 68.1 s later, records the arrival of the s wave. assuming that the waves travel in a straight line, how far (in terms of m) is the seismograph from the earthquake?

Where is the world’s shortest commercial runway?

Directions conduct research to collect information and data in order to write a well-informed argument essay responding to the following prompt: do you believe your local power company is doing enough to reduce dependence on nonrenewable energy sources? why or why not? remember that your argument essay should contain: a claim supporting evidence connected to your claim an acknowledgement of counterclaim(s) a conclusion after writing your rough draft, reread it and edit it for spelling, grammar, and clarity.

Dry land planting can benefit the environment by reducing the need for tillagate