Một chất điểm chuyển động thẳng có đồ thị vận tốc – thời gian như hình: a. Tính gia tốc chuyển động của chất điểm trong mỗi giai đoạn.
b. Lập phương trình chuyển động của chất điểm trong mỗi giai đoạn.
c. Tính quãng đường chất điểm chuyển động trong 10s.
d. Vẽ đồ thị tọa độ, gia tốc theo thời gian

What is the maximum acceleration of the wing tips, in units of g?

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?

The solar panels used by mark function because of the photoelectric effect. light shines on the cells causing electrons to be ejected from the metal, which produces an electric current. at night on mars, no light will fall on the solar cells and no electric current will be generated. according to your notes, what type of light is typically needed to cause the photoelectric effect? a)visible b)ultraviolet c)infrared