Ethan moves a 100 kg barrel up a 50 meter ramp The amount of work ethan has completed is

We all use gps today, even if we don't drive yet. i bet you have been in the car with a parent and they have asked you to get out your phone to find a specific location. in your car, on the phone, you are using a very sophisticated technology. gps satellites circle the earth twice a day in a very precise orbit and transmit signal information to earth. gps receivers take this information and use trilateration to calculate the user's exact location. essentially, the gps receiver compares the time a signal was transmitted by a satellite with the time it was received. the time difference tells the gps receiver how far away the satellite is. now, with distance measurements from a few more satellites, the receiver can determine the user's position and display it on the unit's electronic map. what type of signal is utilized by the gps satellite?

In a given chemical reaction, the energy of the products is greater than the energy of the reactants. which statement is true for this reaction?

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island