Use the dictionary below to answer Questions 12 and 13.

A freight car with mass (mA) of 5000-kg crashes into a freight car with mass (mB) of 10,000-kg at rest. They couple upon collision and move with a speed (vf) of 2 m/s. What was the initial speed  (vAi) of the 5000-kg freight car?

What event(s) would lead to a 47, XXY individual with Klinefelter syndrome?

Haploid:

  In white horses: is the P1 allele dominant or recessive when it comes to coat color?

A 0.050 kg ball falls off a cliff. What is the magnitude of force of gravity on the ball?  

A freight train rolls along a track with considerable momentum. If it rolls at the same speed but has twice as much mass, its momentum is __________

Which phenotypic sex (M = male, F = female) would be observed for each individual? (assume all other chromosomes are normal.)

Coat color is determined by two loci in large cats. Two pink panthers fall in love and produce a large litter of baby panthers with the following phenotypic ratios: 12/16 pink; 3/16 black; and 1/16 white. What is the genotype of the black progeny?

If you push an object twice as far while applying the same force, you do ____________