A train is traveling in one direction along a straight track. The train is acted on by a known and constant net force for a known time interval. What other information does the student have to know to determine the train’s final velocity? A
mass of train and incline of track

B
incline of track and friction of train with track

C
mass of train and initial velocity

D
friction of train with track and initial velocity

An object is 10 cm from the mirror, its height is 1 cm and the focal length is 5 cm. what is the image height? (indicate the object orientation by including the + or - sign with the answer.) hi = cm +1 -1 +10 -10

Thomas his older brothers, who own a junk yard, on the weekends to earn extra money. he likes to them push broken-down cars to the back of the junk yard because it makes him feel strong. last saturday, they pushed three cars with different weights, and he noticed he used different amounts of force for each one. the cars were the following weights: white car: 2,700 kg red car: 1,500 kg blue car: 2,100 kg think about how much force is needed to move each car. which correctly lists the cars in order from the most to least amount of force needed to move them? a) white, blue, red b) blue, red, white c) red, white, blue d) white, red, blue

Which articulations allow for greatest range of motion?