> en cual de las siguientes situaciones la fuerza neta sobre el cuerpo es cero? 1. un avion que vuela al norte con rapidez constante de 120 m/s y altitud constante; 2. un automovil que sube en linea recta por una colina con pendiente de 3 grados, a una rapidez constante de 90 km/h; 3. un halcon que vuela en circulos con rapidez constante de 20 km/h a una altura constante de 15 m a campo abierto; 4. una caja con supercies lisas, sin friccion, que esta en la parte de atras de un camion cuando este acelera hacia adelante en un camino plano a 5 m/s2.

A250-n box is at rest on a frictionless horizotal floor. then a person shoves the box with a non-zero force of magnitude p. which statement best describes the relationship betweeen p and the motion of the box after it was shoved? -the box will not move when p< 250n but otherwise will accelerate at a constant rate that is directly proportional to p - the box will begin moving at a speed that is directly proportional to p, then will gradually slow to a halt -the box will move with constant velocity at a speed that is directly proportional to p -box will accelerate across the floor at a constant rate that is directly proportional to p

Which of the following is the phase that results when the moon is on the opposite side of the earth from the sun? a. quarter moon b. crescent moon c. new moon d. full moon

10 points! will mark brainiest! in a heat engine if 1,000 j of heat enters the system and the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2,000 j 1: write the equation 2: list out your known variables 3: plug the numbers into the equations 4: solve 5: write your solution statement that includes initial energy and final energy added you so much!