Two students are located 15 m from each other. Both students throw snowballs at each other. Pitch weight 600 N. One student throws at an angle a = 45° to the horizon, and the other throws at an angle B = 35° to the horizon. At what speed should each of the students throw a pitch; to hit each other around the chest area. It is known that the chest height of the first student is 180 cm and for the second 170 cm, the throwing of spikes also takes place around the breast level. [2] What impulse would be transmitted if the picks hit? [3] What is the angle of velocity to the horizon at the moment of impact? Air resistance can be ignored.

answer: the exterior temperature of commercial jet planes as they leave the stratosphere and return to the ground increases steadily.

explanation:

the lower most layer of atmosphere is troposphere which extends from 0 to 12 km above the surface of the earth. the temperature initially decreases as distance is increased from the earth's surface. commercial jets fly in lower part of the stratosphere. the stratosphere extends upto 50 km. the temperature in stratosphere starts rising again due to presence of ozone which traps the uv rays.

thus, when the planes leave the stratosphere and return to the ground, the exterior temperature increases steadily.

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