A compound machine is used to lift a car . If you apply a force of 60 N to the machine, it lifts the car with a force of 550N.

When a neutral charge, comes into contact with a positive charge they repel each other nothing happens the neutral charge becomes negative they attract each other

Debris produced by mining is called

Avector of magnitude 2 cannot be added to a vector of magnitude 3 so that the magnitude of the resultant is a. zero b. 1 c. 3 d. 5 e. 7