Distant explosion can break glass windows. How?

3) A 2.4kg mass is attacked to a spring and the spring stretches 11.8 cm. a) Determine the spring constant) use the spring constant to determine the stretch of the spring if the 2.4kg was replaced with a 3.9 kg.

1. If you hold the mass at the spring's equilibrium what kind of energy would it posses?

Two pieces of paper hang side-by-side about an inch apart. Suppose that someone blows straight down the gap in between the pieces of paper. In which direction will the bottom ends of the papers move (left/right/toward each other/away from each other)? Justify your answer.

2. Cart 1 of mass m = 0.50kg fastened to a spring of spring constant k = 14N/m is pushed 15 mm in from its equilibrium position and held in place by a ratchet (Fig. 2). An identical cart 2 is launched at a speed of 0.10m/s toward cart 1. The carts collide elastically releasing the ratchet and setting cart 1 in motion. After the collision, cart 2 is immediately removed from the track. a What is the maximum compression of the spring? b How many seconds elapse between the instant the carts collide and the instant the spring reaches maximum compression? _JM www cart 1 cart 1 Figure 2 cart 2

7. How much force is needed to pull a spring with a spring constant of 16 N/m a distance of 30 cm?

2. Construct a problem where a mass is sitting on top of a spring inside an elevator; both are suspended by a rope and are uniformly accelerating upwards with magnitude 4 meters per second squared. Specify all the masses in the problem, as well as all the forces acting in the problem, and their relative directions.

3. Two balls with masses of 1.80 kg and 5.50 kg travel toward each other at speeds of 10.0 m/s and 3.90 m/s, respectively. If the balls have a head-on inelastic collision and the 1.80-kilogram ball recoils with a speed of 7.80 m/s, how much kinetic energy is 19 shpl19 lost in the collision? shp shpll 119 19 shpi19

19 shpi 2. A 1.80-kilogram mud ball drops from rest at a height of 10.0 m. If the impact between the ball and the ground lasts 0.51 what is the magnitude of the average force exerted by the ball on the ground? N s, 19 shpils 119 shplls pl19 shpll

11 - Bölüm 9- soru-2 A 1.6 kg ball is attached to the end of a 0.40 m string to form a pendulum. This pendulum is released from the rest with the string horizontal. At the lowest point of its swing, when it is moving horizontally, the ball collides with a 0.80 kg block initially at rest on the horizontal frictionless surface. The speed of the block just after the collision 3.77 m/s. What is the speed of ball just after the collision (in m/s)? (g=10 m/s). Option1 Option2 Option3 Option4 Option5 0.70 2.50 0.94 3.3 4.1 a) Option2 b) Option1 Option5 d) Option4 Option3