Consider two simple pendula. Pendulum 1 has a length of L and a bob mass of m. Pendulum 2 has a length of 4L and a bob mass of 4m. If the period of pendulum 1 is 4 seconds, then the period of pendulum 2 is... 2 s
16 s
1 s
8 s

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:

What is the largest meteoroid that has collided with this planet

Aball is thrown vertically upwards from the top of a tower with a speed of 100m/s. it strikes the pound near the base of the tower after 25sec . the height of the tower is