What is the effective exhaust velocity in a Space Shuttle Vacuum?
CREATE TABLE table_15944_5 (effective_exhaust_velocity__m_s_ VARCHAR, scenario VARCHAR)
SELECT COUNT(effective_exhaust_velocity__m_s_) FROM table_15944_5 WHERE scenario = "Space shuttle vacuum"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_15944_5 (effective_exhaust_velocity__m_s_ VARCHAR, scenario VARCHAR) Question: What is the effective exhaust velocity in a Space Shuttle Vacuum? [/INST] SELECT COUNT(effective_exhaust_velocity__m_s_) FROM table_15944_5 WHERE scenario = "Space shuttle vacuum" </s>