Your first decision on this problem is to choose your observer. Since an observer on the tube will have the simplest view of the motion of the particle P, attaching the observer to the tube is ...

The strikes follow months of rising regional tensions amid threats by President Trump to attack. The casualties and targets were not immediately clear. OpenAI Reaches A.I. Agreement With Defense Dept.

Abstract: The next six-generation (6G) mobile device is expected to support eight MIMO spatial streams to achieve a much larger spectral efficiency than the current fifth-generation (5G) 4×4 MIMO ...

Chris Hemsworth stars as a virtuoso jewel thief, and Mark Ruffalo plays the detective tracking him down in Crime 101. This thriller is a deliberate throwback — and also a lot of fun.

Via essays, poems, videos, artwork and graphics, 35 students across the globe reflect on how this technology is affecting teenagers. By The Learning Network Students react to Harvard’s proposal to cap ...

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