While completing an obstacle course, a runner moves 30 m north, 20 m south, then another 5 m north. At the end of the course, how far away is the runner from his starting point?

it has to be b, about 97 percent.

gpe = mass x gravity constant x height or… gpe = mgh

where… mass: measured in kilograms (kg)

gravity: gravity constant on earth = 10.00 m/s2

height: measured in meters (m)

gpe: measured in joules (j) or kilojoules (kj)

how do you solve gpe?

gravitational potential energy (gpe) is the energy an object has because of its position above the. ground.

gpe = mass x gravity constant x height or… gpe = mgh.

mass:

note: to earn full marks when solving science word problems, you must show your work:

formula.

example:

given values:

mass = 0.3 kg.

electric field is a function of 1/r^2

yes, the force per unit charge for a point charge is inverse square law.