Acart with mass m1 = 3.2 kg and initial velocity of v1,i = 2.1 m/s collides with another cart of mass m2 = 4.3 kg which is initially at rest in the lab frame. the collision is completely elastic, and the wheels on the carts can be treated as massless and frictionless. what is the velocity of m1 in the center of mass frame after the collision?

The velocity of a curling stone is due east. what will be the direction of the momentum of the curling stone as it moves?

A5 foot by 5 foot box culvert is buried 6 feet beneath the surface of the ground. a crosssection of this very long culvert (into and out of the page) is illustrated below. assume that the soil in which the culvert is buried has the following properties: jt = 120 pcf, w = 12%, ko = 0.50, ka = 0.33, and kp = 3.00. calculate the total horizontal force per unit length of culvert (fh) felt on one of the vertical faces of the culvert.

According to valence bond theory, which orbitals overlap in the formation of the bond in hf according to valence bond theory, which orbitals overlap in the formation of the bond in hf 2s on h and 2p on f 1s on h and 2s on f 1s on h and 1p on f 1s on h and 2p on f 1s on h and 3p on f