A firecracker of mass is moving at a speed in the positive -direction. It explodes and breaks up into two identical fragments, each of mass . After the explosion, one fragment moves at the same speed but in the negative
-direction. The speed of the second fragment must be

A v
B 2v
C 3v
D 4v
E 5v

Please provide justification

Agroup of randomly selected apple valley high school students were asked to pick their favorite gym class. the table below shows the results of the survey. there are 528 students at apple valley high school. gym class number of students racquet sports 1 team sports 9 track and field 17 bowling 13 based on the data, what is the most reasonable estimate for the number of students at apple valley high school whose favorite gym class is bowling? choose 1 answer a. 9 b. 13 c. 119 d. 172

Divide. –4.2 ÷ 6 = a –0.7 b 0.7 c –7 d 7 me

Which is a logical conclusion based on the given information? a. figure abcd is a rhombus by the definition of a rhombus. b. segment ac is congruent to segment dc by cpctc. c. angle acb is congruent to angle adc by the angle-side-angle theorem. d. triangle acd is congruent to triangle cab by the hypotenuse-leg theorem.