Two pieces of thread are hung from a pole in a room without a draft. It assumed that they both carry a charge, however it is unknown what that charge is or if they are like charged or charged oppositely. Three items are brought to Thread A and then brought to Thread B. Two of those items pulled Thread A toward them while one item pushed it away. When the items were brought to Thread B, the same thing happened. 1. What can you tell me about the charges on Thread A in relationship to Thread B? 2. What can you tell me about the charges on the items in relationship to each other?

good looking response

firearm identification is the process of analyzing the bullets and cartridge cases left at a crime scene to determine if they came from a particular firearm. marks on the bullets and cartridges may be common to every firearm of that type. these are called class characteristics.

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards

the answer is ampere

the ampere is used to measure electricity. an ampere is a unit of electric current equal. a unit of measure for the flow of current in a circuit. one ampere is the amount of current flow provided when one volt of electrical pressure is applied against one ohm of resistance.