A man started at his house and went to the post office, then to the pet store, and finally home again. What is the average velocity If this trip took three hours?
Explain how you arrived at your answer.
POST OFFICE
PET STORE
4 miles
3 miles
5 miles

The chemical effect of the endocrine system is longer lasting than the chemical effect of the nervous system. select the best answer from the choices provided t f

Photoelectrons with a maximum speed of 6.50 x 107 m/s are ejected from a surface in the presence of light with a frequency of 6.75 x 1014hz. if the mass of an electron is 9.10 x 10-31 kg, calculate in joules the maximum kinetic energy of a single electron. 3.84 x 10-15 j 1.92 x 10-15 j 5.92 x 10-23 j 3.07 x 10-16 j

The least penetrating form of radiation is