Which of the following statements are true? check all that apply. check all that apply. kirchhoff's loop rule is based on the conservation of energy. kirchhoff's loop rule is based on the conservation of charge. kirchhoff's junction rule is based on the conservation of energy. kirchhoff's junction rule is based on the conservation of charge. the sum of the changes in potential around any closed loop of a circuit must equal zero. the sum of the currents entering a junction must equal the sum of the currents exiting that junction.

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:

At time t=0, a particle is located at the point (3,6,9). it travels in a straight line to the point (5,2,7), has speed 8 at (3,6,9) and constant acceleration 2i−4j−2k. find an equation for the position vector of the particle.

Gas cloud 1 is likely to form a star. gas cloud 2 is not. based on this information, match the given conditions with each cloud