Suppose somebody proposed that rather than invoking dark matter to explain the increased orbital velocities of stars beyond the sun’s orbit, the problem could be solved by assuming that the milky way’s central black hole was much more massive. does simply increasing the assumed mass of the milky way’s central supermassive black hole correctly resolve the issue of unexpectedly high orbital velocities in the galaxy? why or why not?

The frequency of the fundamental of the guitar string is 320 hz. at what speed v do waves move along that string?

The chart shows the costs and shipping times for materials that a company needs to build a new product. which describes the best trade-off if the company needs to start building their product within the next two years? they should order the domestic materials because it is always best to choose the fastest shipping time. they should order the imported materials because it is always best to choose the lowest cost for materials. since the shipping time is longer, they should order the domestic materials because the additional cost is worth it to get the materials in time. even though the shipping time is longer, they should order the imported materials because they are less expensive and should arrive in plenty of time to build the product.

Ahockey player of mass 82 kg is traveling north with a velocity of 4.1 meters per second he collides with the 76 kg player traveling east at 3.4 meters per second if the two players locked together momentarily in what direction will they be going immediately after the collision how fast will they be moving