None of these technologies use radio waves. None of these technologies use lower-frequency microwaves. None of these technologies use higher-frequency microwaves. None of these technologies use infrared waves. The radiation emitted by some wireless local area networks has the shortest wavelength of all the technologies listed above. All these technologies emit waves with a wavelength in the range 0.10 to 10.0 cm. All the technologies emit waves with a wavelength in the range 0.01 to 10.0 km.

Which of the following are used in an electrochemical cell? a. electrodes b. electrolyte c. terminals d. all of the above

Acar travels 40m in 8 seconds find the car speed

Visualize the problem and identify special cases first examine the problem by drawing a picture and visualizing the motion. apply newton's 2nd law, ∑f⃗ =ma⃗ , to each body in your mind. don't worry about which quantities are given. think about the forces on each body: how are these consistent with the direction of the acceleration for that body? can you think of any special cases that you can solve quickly now and use to test your understanding later? one special case in this problem is if m2=0, in which case block 1 would simply fall freely under the acceleration of gravity: a⃗ 1=−gj^.