When using a simple machine, the force you must overcome. A simple machine usually multiplies the effort force to exceed the this. Example: Lucy lifts a sack of potatoes using a pulley. The weight of the sack of potatoes is this.

atomic = no of protons.

mass number-atomic number = neutron number

b

explanation:

waves moving from a fast medium to a slow medium will experience a reflection as light travels more slowly than red light. total internal reflection occurs when the critical angle is.

which three statements are true about all alloys?