If Sophie climbs a ladder 3.4 m tall, and Sophie has a mass of 48 kg, how much G. P.E. ( Gravitational potential energy) has she gained?

since you're a real machine, your ama is always less than your ima, because you can never totally eliminate friction.

if the thermos has a vacuum innner, then heat through conv currents and conduction are reduced = vacuum flask

the higher the current the higher the mag field around it the higher the influence on the compass

c) up

hope this