CREATE TABLE table_name_40 (muzzle_energy VARCHAR2, max_pressure VARCHAR2)

What is the muzzle energy with 40,000 psi max pressure?
SELECT muzzle_energy FROM table_name_40 WHERE max_pressure = "40,000 psi"
SELECT "muzzle_energy" FROM "table_name_40" WHERE "40,000 psi" = "max_pressure"