One ship, sailing east with a speed of 7.5 m/s, passes a certain point at 8 AmM; and a second ship sailing north at the same speed, passed the same point at 9.30 A. M. At what time are they
closest together and what is the distance between them then? [Ans: 8.45 A. M., 28.6 km]

car stops. he keeps going = he has inertia

show the wavelengths of a wave. show the crests of a wave.

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.