Physics, 03.05.2020 13:56 alexportillo859
Mechanical sound waves are unable to travel through a vacuum such as through space but radio waves are transmitted to earth from satellites how is this possible
Answers: 2
Physics, 21.06.2019 17:00
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?
Answers: 2
Physics, 22.06.2019 05:30
Mutt and jeff are running along a path each pushing a cart loaded with rocks. if mutt's wagon has a mass two times greater than jeff's and they want to stay together, arriving at their destination at the same time, what must happen? a) jeff should slow down so mutt can catch up. b) mutt must use half as much force to push his cart. c) mutt must use twice as much force to push his cart. d) mutt and jeff will use the same force, but mutt will take bigger steps.
Answers: 1
Physics, 22.06.2019 22:00
1. what is the relationship between wavelength and the penetrating power of an electromagnetic wave? a) the penetrating power has no relationship to the wavelength. b) the penetrating power increases as the wavelength increases. c) the penetrating power decreases as the wavelength increases. d) the penetrating power decreases as the wavelength decreases. 2. as ice melts and turns into water, the speed of sound through the material would most likely do what? justify your answer. a) the speed would not change because the material is always water. b) the speed of sound would increase because the density of water is less than that of ice. c) the speed of sound would increase because energy is added to ice in order to make it melt. d) the speed of sound would decrease because sound travels faster through solids than liquids. 3.which of these waves need a medium to travel through? a) sound b) x-rays c) infrared rays d) visible light
Answers: 3
Mechanical sound waves are unable to travel through a vacuum such as through space but radio waves a...
Mathematics, 08.09.2021 03:40
Mathematics, 08.09.2021 03:40
History, 08.09.2021 03:40
History, 08.09.2021 03:40
Mathematics, 08.09.2021 03:40
Mathematics, 08.09.2021 03:40
Mathematics, 08.09.2021 03:40
History, 08.09.2021 03:40
Engineering, 08.09.2021 03:40
Spanish, 08.09.2021 03:40
Mathematics, 08.09.2021 03:40
Chemistry, 08.09.2021 03:40
Mathematics, 08.09.2021 03:40
Mathematics, 08.09.2021 03:40