Cho hai điện tích điểm Q1 = 1nC, Q2 = -2nC đặt tại A và C trong không khí như hình vẽ AC = CB = CD = 20cm. Điện thế tại D là

answer:   you might love summer weather, but you don’t want it to feel like the sun is inside your car. but a hot car that just won’t seem to cool down might be a bigger of a problem than you think. your car relies on being at the right temperature.

explanation:

the simple machine has three main features. they are:

fulcrum is the center point or pivot point of the machine. effort is input force/ applied force. load is external force/ output.

the keisha 's machine labels are

x : load

y: fulcrum

z: lever