1. A baseball weighs 220g. Top speed for a professional pitcher is about 100 mph when he throws a fast ball. Determine the de Broglie wavelength in nm associated with a baseball that is moving with a velocity of 70 mph.
2. Determine the uncertainty in position in nm associated with an electron that is moving with a velocity of 417 km/s. The uncertainty in the velocity is 5.00%. The electron rest mass is 9.11 x 10-31 kg. Use delta x * delta v >= h/4 pi m