A2.05-m-long rod, as measured in its rest frame, speeds by you longitudinally at 6.01 x 107 m/s. you measure its length as it passes. by how many millimeters do you determine the rod has contracted?

40 mm

Explanation:

=Proper Length of rod = 2.05 m

Speed of rod = 6.01×10⁷ m/s

Length contraction

Final Length will be 2.01 m

So length that is contracted is 2.05-2.01 = 0.04 m

The length is contracted by 40 mm.

the tires are rotating at 0.434 rpmlinear speed=45 m/sdiameter=0.550 mradius=0.275 mnow v= rωω= v/rω=45/0.275ω=163.6 rad/sω=163.6 rad/s (1rev/2π rad) (60s/1m)ω=1563 rpm

no. bullets are macro objects. wave nature is for light waves, extremely tiny particles. if a light particle was the size of your finger, the bullet would be the size of the universe. so basically, that huge difference in size makes the wave nature of matter insignificant.