Two equal mass carts approach each other with velocities equal in magnitude but opposite in direction. friction can be neglected. if the carts collide completely inelastically, what will be the final velocity of the combined system?

to the left with half the initial velocity
not enough information!
0
to the right with half the intial velocity

0

Explanation:

Since momentum is given by:

Therefore momentum is a vector quantity in the direction of velocity.

This case can be described mathematically as:

since the mass and velocity are equal:

net momentum:

some think that theories become laws, but theories and laws have separate and distinct roles in the scientific method. a law is a description of an observed phenomenon in the natural world that hold true every time it is tested. it doesn't explain why something is true; it just states that it is true.

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answer: 802.3 kilo joules of energy represents 191.75 kilo calorie of energy.

explanation:

energy released during combustion of one mole methane = 802.3 kilo joules

if 1 kilo joule = 0.239006   kilo calorie

then ,802.3 kilo joule will be = 802.30.239006 kilo calorie

802.3 kilo joule = 191.75 kilo calorie

hence, the energy in kilo calorie is 191.75 kilo calorie.