Help me Shown is a picture of two toy trains getting ready to collide. If the collision is non-elastic, what is the total momentum of

the train cars after the collision?

a

-10 kg·m/s

b

10 kg·m/s

c

70 kg·m/s

d

50 kg·m/s

Find the dimensions and area of the largest rectangle that can be inscribed in the upper half of the ellipse. (give your answers in terms of a and b. enter the dimensions as a comma-separated list.)

An architect plans to use solar energy to heat the next house he designs. what principle of absorption and infrared energy can be applied to the design of the new house? how could she apply to those principals?

How does the electric potential energy between two charged particles change if one particle is reduced by a factor of 3? a. increased by a factor of 3 b. it is decreased by a factor of 9 c. it is reduced by a factor of 3 d. it is increased by a factor of 9