Question

the si base unit of length is the __________.meterkilogramliterkilometerquestion 81 ptshow many basic units in the si system?7924

Explanation:

• For the first question: The International System of Units (SI) defines the meter as the base unit of length. A kilometer is a derived unit (1000 meters). A kilogram is the SI base unit of mass. A liter is a unit of volume (not an SI base unit).
• For the second question: The SI system has 7 base units. They are meter (length), kilogram (mass), second (time), ampere (electric current), kelvin (temperature), mole (amount of substance), and candela (luminous intensity).

Answer:

• First question: meter
• Second question: 7