Peter starts out from a restaurant traveling at 24 mph. alex leaves the restaurant 15 minutes later, traveling at 36 mph in the same direction. how long will it take alex to pass peter? how far away from the restaurant will they be when alex passes peter? (0.5 hours, 18 miles from the restaurant)

Aperson walks first at a constant speed of 4.89 m/s along a straight line from point a to point b and then back along the line from b to a at a constant speed of 2.95 m/s. what is the average speed over the entire trip?

Ahypothetical metal has an orthorhombic unit cell for which the a, b, and c lattice parameters are 0.413 nm, 0.665 nm, and 0.876 nm, respectively. (a) if there are 8 atoms per unit cell and the atomic packing factor is 0.536, determine the atomic radius (in nm). (b) if the density is 3.99 g/cm3, calculate the metal's atomic weight (in g/mol).

Which of the following is the largest disadvantage of about half of the electricity in the united states comes from burning