Which change would cause the largest increase in a mountain climber's gravitational potential energy?
carrying twice the weight and climbing half as high
carrying half the weight and climbing half as high
carrying twice the weight and climbing twice as high
carrying half the weight and climbing twice as high

carrying twice the weight and climbing twice as high.

Explanation:

we generally write the gravitational potential energy as mgh. where m is the mass of the body and h the height climbed.

therefore if we double both mass and height gravitational potential energy would increase.

measuring things 1 litre of water

r = ρ x length / area  

ρ = r x area / length  

ρ is in ohm-meters  

in basic units, it is m³kg/s³a²  

i think this is it.