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? vf* =

When measuring volume, why is it important to use the correct tools and units to attain the greatest accuracy? use specific examples from the lab to support your answer. (5 points)

Describe cytokinesis in plants and animals. in animals: in plants.

Acommon technique in analysis of scientific data is normalization. the purpose of normalizing data is to eliminate irrelevant constants that can obscure the salient features of the data. the goal of this experiment is to test the hypothesis that the flux of light decreases as the square of the distance from the source. in this case, the absolute value of the voltage measured by the photometer is irrelevant; only the relative value conveys useful information. suppose that in part 2.2.2 of the experiment, students obtain a signal value of 162 mv at a distance of 4 cm and a value of 86 mv at a distance of 5.7 cm. normalize the students' data to the value obtained at 4 cm. (divide the signal value by 162.) then calculate the theoretically expected (normalized) value at 5.7 cm.