Câu 2: Trong hệ tọa độ Descartes Oxyz, phương trình chuyển động nào dưới đây ứng với quỹ đạo là đường thẳng đi qua hai điểm A(9,0) và B(0,9) là:

During your summer internship for an aerospace company, you are asked to design a small research rocket. the rocket is to be launched from rest from the earth's surface and is to reach a maximum height of 910 m above the earth's surface. the rocket's engines give the rocket an upward acceleration so it moves with acceleration of 16.0 m/s2 during the time t that they fire. after the engines shut off, the rocket is in free fall. ignore air resistance.

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

True or false: the revolution of the earth creates day and night as it rotates around the sun