An 7.6 kg crate is pulled 4.8 m up a 30∘ incline by a rope angled 18 ∘ above the incline. the tension in the rope is 130 n and the crate's coefficient of kinetic friction on the incline is 0.22.1.) how much work is done by (a) tension, by (b) gravity, and by (c) the normal force? 2. ) what is the increase in thermal energy of the crate and incline?

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?

Describe the path of a ray that approaches a mirror parallel to the principal axis.

If forces acting on an object are unbalanced, which factors may result fron an unbalanced force? check all that apply