Fill in the blanks.(1) consists of electric and magnetic disturbances, or waves, that travel through space. human eyes see one form of this energy, called (2) all forms of electromagnetic radiation, including x-rays and radio waves, make up the (3) each type of radiation can be classified in two ways. (4) measures the distance between the peaks on a wave and (5) is the number of waves that occurs each second. scientists study radiation with (6) , which collect and focus light. the (7) the opening that gathers light in a telescope, the more light that can be collected. a(n) (8) uses lenses to bring light to a focus, and a(n) (9) uses mirrors to do the same thing. the process of linking several telescopes together so that they can act as one is called (10)
Answers: 3
Physics, 21.06.2019 17:00, 2sally2
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 05:00, ajajjsisi9x8
Which is the best predictor of the radioactive nature of an isotope? o the proton-to-electron ratio the neutron-to-proton ratio o the neutron-to-electron ratio the electron-to-proton ratio
Answers: 1
Physics, 22.06.2019 05:30, jalexus
Thomas his older brothers, who own a junk yard, on the weekends to earn extra money. he likes to them push broken-down cars to the back of the junk yard because it makes him feel strong. last saturday, they pushed three cars with different weights, and he noticed he used different amounts of force for each one. the cars were the following weights: white car: 2,700 kg red car: 1,500 kg blue car: 2,100 kg think about how much force is needed to move each car. which correctly lists the cars in order from the most to least amount of force needed to move them? a) white, blue, red b) blue, red, white c) red, white, blue d) white, red, blue
Answers: 2
Fill in the blanks.(1) consists of electric and magnetic disturbances, or waves, that travel throug...
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