a 0.01 bullet is fired into a 2.5 kg pendulum bob initially at rest becomes embedded in it. after the collision, the pendulum rises a vertical distance of 0.8m. calculate the initial speed of the bullet

Which of the following are guidelines to follow for obtaining accurate observations

Selma made a diagram to compare convection and radiation. which label belongs in the area marked x? must involve temperature differences between substances or objects only occurs when molecules are in direct contact involves the movement of fluids based on density differences can occur where there is little or no matter

Ahanging spring stretches by 35.0 cm when an object of mass 450 g is hung on it at rest. in this situation, we define its position as x = 0. the object is pulled down an additional 18.0 cm and released from rest to oscillate without friction. what is its position x at a moment 84.4 s later? express your answer in cm.