A bullet of mass m1 = 11.0 g is fired with speed v1 = 137 m/s into stationary block 2 of mass m2 = 3.00 kg. Block 2 is initially at rest on a frictionless surface and touching the end of an unstretched spring of spring constant 200 N/m. The bullet becomes embedded in block 2 after a

Which of the following explains why it took so long for the public to accept the negative health effects of smoking? a)people were waiting for counter reasons, and those were presented.b)scientists had not completely finalized their results, which took 30 years.c)cigarettes were cheaply available and media channels were very inefficient.d)cigarette manufacturers were trying hard to bring an alternative into the market

Truck traveling west on the highway experiences an acceleration to the east. what could be the cause of this acceleration

Arotating space station is said to create “artificial gravity”—a loosely-defined term used for an acceleration that would be crudely similar to gravity. the outer wall of the rotating space station would become a floor for the astronauts, and centripetal acceleration supplied by the floor would allow astronauts to exercise and maintain muscle and bone strength more naturally than in non-rotating space environments. if the space station is 200 m in diameter, what angular velocity would produce an “artificial gravity” of 9.80 m/s^{2} 2 at the rim?