What is the main function of environmental policy? a. prevent the use of natural resources b. reduce human impact on the environment c. prevent nature from having a harmful effect on humans d. reduce the use of natural resources Please select the best answer from the choices provided A B C D

Asun-sized star will spend most of its lifetime as a: white dwarf red giant protostar main-sequence star

During spring semester at mit, residents of the parallel buildings of the east campus dorms battle one another with large catapults that are made with surgical hose mounted on a window frame. a balloon filled with dyed water is placed in a pouch attached to the hose, which is then stretched through the width of the room. assume that the stretching of the hose obeys hooke's law with a spring constant of 89.0 n/m. if the hose is stretched by 5.80 m and then released, how much work does the force from the hose do on the balloon in the pouch by the time the hose reaches its relaxed length? unitst 3 number-1497 the tolerance is +/-5% open show work click if you would like to show work for this question:

Given the position vector of the particle r(t)=(t+1)i+(t^2−1)j+2t k, find the particle's velocity and acceleration vectors at t=1