Linds

Questions

1. physics

A baseball pitcher throws a baseball with a speed of 48 m/s . In throwing the baseball, the pitcher accelerates it through a displacement of about 3.5 m, from behind the body to the point where it is released how long was it in the air before returning to
2. Physics

An airplane flies at airspeed (relative to the air) of 470 km/h . The pilot wishes to fly due North (relative to the ground) but there is a 64 km/h wind blowing Southwest (direction 225◦). In what direction should the pilot head the plane (measured
3. statistics

The proportion of adults in the US with basic literary skills is 43%. If a hypothesis test is performed on this, how should you (in terms of the claim) interpret a decision that rejects the null hypothesis?

Using the Bohr model, estimate the wavelength ë of the Ká characteristic X-ray for a metal an atom of which contains Z = 50 protons.

An object is moving along a straight line and the uncertainty in its position is 1.1 m. (a) Find the minimum uncertainty in the momentum of the object. (b) Find the minimum uncertainty in the object's velocity, assuming that the object is a golf ball (mass

Responses

1. Linds

I just realized I got my name and the subject mixed up...I also realized I don't have a default case in my switch statement. Not sure if that will change anything, but I'll try it.
2. physics

10.3 m / 8.0 m/s =1.287 seconds