The gravitational force.
In fact, the motion of the projectile is composed by two independent motions:
- on the horizontal direction, it is a uniform motion (with constant speed)
- on the vertical direction, it is a uniformly accelerated motion, where the vertical acceleration g is given by the gravity exerted by the Earth on the projectile.
For this reason, the composition of the two motions results in a parabolic trajectory.
Answer:
Explanation:The work done is twice as great for block B because it is moved twice the ... Equal forces are used to move blocks A and B across the floor. ... Does the normal force of the floor pushing upward on the block do any work? ... Suppose that the mass is halfway between one of the extreme points of its motion and the center point.
Answer:
False
Explanation:
The depending on what type of pressure is enclosed in a object, the smaller the object the more pressure because that pressure has limited room to escape.
Answer:
P=3792.55 Pa
Explanation:
Para resolver este problema, vamos primero a hacer un dibujo de la situación (ver imagen adjunta).
En este caso, tanto el peso del aceite como el peso del agua están ejerciendo una presión sobre el fondo del recipiente, por lo que la presión total será la suma de ambas presiones. La presión está dada por la equación:
por lo que la presión total será:
y sustituímos (mucho cuidado de convertir las alturas a metros)
lo cual nos da como resultado:
P=3792.55 Pa
False because the more mass and object has, the more force you will need to move that object.
