Que energía se basa en la masa y altura ?

Determine el momento angular de un rueda de 3000g moviendose a 10m/s con un radio de giro de 400cm

Aclarinetist, setting out for a performance, grabs his 3.350 kg clarinet case (including the clarinet) from the top of the piano and carries it through the air with an upward force of 24.65 n. find the case's vertical acceleration. indicate an upward acceleration as positive and a downward one as negative.

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up