An airplane maintains a speed of 645 km/h relative to the air it is flying through as it makes a trip to a city 724 km away to the north.(a) what time interval is required for the trip if the plane flies through a headwind blowing at 32.1 km/h toward the h(b) what time interval is required if there is a tailwind with the same h(c) what time interval is required if there is a crosswind blowing at 32.1 km/h to the east relative to the

On a horizontal frictionless surface, a small block with mass 0.200 kg has a collision with a block of mass 0.400 kg. immediately after the collision, the 0.200 kg block is moving at 12.0 m/s in the direction 30° north of east and the 0.400 kg block is moving at 11.2 m/s in the direction 53.1° south of east. use coordinates where the +x-axis is east and the +y-axis is north.(a) what is the total kinetic energy of the two blocks after the collision (in ) what is the x-component of the total momentum of the two blocks after the collision? (indicate the direction with the sign of your ) what is the y-component of the total momentum of the two blocks after the collision? (indicate the direction with the sign of your answer.)