If an asteroid were going to impact Earth, would you prefer to know in advance or let the NEO remain a mystery until impact? Why?

Astronomers discover an exoplanet (a planet of a star other than the sun) that has an orbital period of 3.87 earth years in its circular orbit around its sun, which is a star with a measured mass of 3.59 x 1030 kg. find the radius of the exoplanet's orbit.

The most important difference between a wedge and an inclined plane is a. their size b. their shape c. how they are used d. what they are made of

Which lists the pairs of plates in order from least to greatest in terms of the work done to move the electron?