All of the forces of an explosion are so an explosion is considered an isolated system.

A 500Kg Ford focus automobile is initially travelling at vi, focus=(60i + 20j)Km/hr when it inelastically collides with a 16.7Mg semitruck initally traveling at vi,truck=(-30i-110j)Km/hr. problems: a) what is the final velocity immediately after the inelastic collision?  b) assume that, just after the collision , the ford focus and semitruck begin to slide across the pavement due to a uniform kinetic friction with coefficient uk=0.45. how far will they slide before coming to a stop.

Puck B has five times the mass of puck A. Starting from rest, both pucks are pulled the same distance across frictionless ice by strings with the same tension.

A 4 kilogramme block travelling at 6 m/s collides with a 3 kg block moving at 2 m/s in an elastic collision. Determine the 4kg block's ultimate velocity.

The 0.5-kg ball is fired from the tube at A with a velocity of v = 6 m/s. If the coefficient of restitution between the ball and the surface is e = 0.8, determine the height h after it bounces off the surface. v = 6 m/s 2 m 130° B C h

If an object feels an impulse J→ then... a) the velocity of the object must be constant b) the force acting on the object must be constant c) the object's momentum must have changed d) the object's momentum must be constant

6) Locate the center of mass of the following molecules: (a) The HCl molecule has a dumbbell shape, as shown below, with the atoms separated by 1.30 × 10−10 m. The mass of the H atom is 1 u and that of the Cl atom is 35 u. (b) The H2O molecule is also shown below. The mass of the O atom is 16 u. The H and O atoms are separated by 1 × 10−10 m and the bond angle is 105 I need draw picture and show all work

A 0.500 kg block of cheese sliding on a frictionless tabletop collides with and sticks to a 0.200 kg apple. Before the collision the cheese was moving at 1.40 m/s and the apple was at rest. The cheese and apple then slide together off the edge of the table and fall to the floor 0.600 m below. (a) Find the speed of the cheese and apple just after the collision. In this collision, what is conserved: momentum, total mechanical energy, both, or neither? (b) What is the speed of the cheese and apple just before they hit the floor? During the fall from the tabletop to the floor, what is conserved: momentum, total mechanical energy, both, or neither?