Two different polymeric materials were evaluated to determine their respective fatigue endurance behavior. both materials were tested separately in laboratory air and in flowing water. (water was selected as a suitable liquid test environment since neither polymer was adversely affected by its presence.) polymer a showed similar s-n plots in the two environments whereas polymer b revealed remarkably different results. speculate as to which environment was associated with the superior fatigue response in polymer b and characterize the structure and mechanical response of polymers a and b

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?

Player kicks a soccer ball from ground level and sends it flying at an angle of 30 degrees at a speed of 26 m/s. what is the horizontal velocity component of the ball to the nearest tenth of a m/s?

According to social exchange theory, altruistic behaviors benefit the individual who performs them.