A small ball of mass m1=0.84kg and initial speed v1=18.2m/s makes a collision with another ball of mass m2 =1.4kg which is initially at rest on a frictionless horizontal table. After the collision the balls move as shown in the figure. Given θ=240, determine the speed of m2 just after the collision, that is, v2'=? Express your answer using one decimal place.

Which of the following represents an upside-down image? o a. +doo b. -doo c. +mo d.-m

Which lists the main components of darwin’s theory of evolution? a. random mutations drive evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms do not change. b. natural selection drives evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms change over time. c. natural selection drives evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms change over time. d. random mutations drive evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms do not change.

Will give brainliest! jay rides his 2.0-kg skateboard. he is moving at speed 5.8 m/s when he pushes off the board and continues to move forward in the air at 5.4 m/s. the board now goes forward at 13 m/s.a. determine jay’s mass.b. determine the change in the internal energy of the system during this process.(express your answer to two significant figures and include the appropriate units.)