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Which point is the centre of mass of this uniform hexagon of thin card?

When many atoms are split in a chain reaction, a large explosion occurs. this is an example of what type of energy conservation

Which best describes how fluids change as they travel through different portions of the convection currents? they change to solids at the outer portion of the convection currents. they change to solids at the inner portion of the convection currents. they become more dense at the outer portion of the convection currents. they become more dense at the inner portion of the convection currents

The applied force of 3 washers will increase the applied force on the car to n.