it's only negative if it's being multiplied by a positive number. If it's being multiplied by another negative number than it will be positive.
yes
sometimes
In multiplication and division: always. In addition: never. In subtraction: sometimes.
Negative * positive = negative Positive * positive = positive Negative * negative = positive
Sometimes.* If "n" is positive, "-n" is negative. * If "n" is negative, "-n" is positive. * If "n" is zero, "-n" is also zesro.
When heat flows into a system, its value is positive because the system is gaining heat energy. When heat flows out of a system, its value is negative because the system is losing heat energy.
no sometimes there positive i
it's only negative if it's being multiplied by a positive number. If it's being multiplied by another negative number than it will be positive.
yes
yes
this term is positive but sometimes can be negative. Ethnocentric is a big cause of civil wars
sometimes
Yes. But NOT always.
No, when heat flows into a system, it is considered positive. Positive heat indicates heat is being added to the system, increasing its internal energy. Negative sign would indicate heat is being lost or leaving the system.
sometimes
heat