Abridge is 176.4m above a river. if i throw a rock horizontally with a
22.0m/s velocity, how far will the rock's horizontal displacement be?

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

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Large electric fields in cell membranes cause ions to move through the cell wall. the field strength in a typical membrane is 1.0 x 10 7 n/c. what is the magnitude of the force on a calcium ion with charge +e? what is its acceleration? is it possible for a particle with the same charge as as calcium to have a different acceleration if placed at this location? what would change the acceleration: mass of the particle? diameter of the particle?