BEFORE AFTER
m
M M
MASS, M, MOVES HORIZONTALLY
AT V = (+20 m/s † +03) WHEN AN
INTERNAL EXPLOSION CAUSES IT TO
BREAK APART INTO 2 UNEQUAL PIECES.
mi 7.0 KG AND Ys=(16+123). m/s.
mq 25.0KG
DURING THIS EVENT
NO MASS IS LOST.
BANG
ma
*725
7) USING THE PROPER PHYSICS LAW, FIND THE FINAL VELOCITY FOR ME
125 E QUALS:
(A) (25.6. - 16.83) m/s (B) (25.67 - 12.0 m/s
(c) (16.81
- 12.03.) m/s
(D) (16.8 - 25.63.). Ms
8) THE AMOUNT
OF
ENERGY PRODUCED BY THE EXPLOSION IS CLOSEST TO :
(A) +375 J
(B) + 650 J
(C) + 850 J
CD) +1075J
(E) + 1350 J
(F) NONE
OF THESE ANSWERS ARE WITHIN
200 J
OF THE CORRECT ANSWER

1. when conducting a test on what kind of music increases the growth of plants, all of the following would fail to meet to fair test standard except (1 point) using different kinds of plants. giving some plants more water than others. exposing the plants to different types of music. using nutrient-rich soil for one and lesser soil for others. 2. engineering uses scientific thinking to solve real-world problems. (1 point) true false 3. what does it mean to test a hypothesis? (1 point) pass a quiz on other scientists’ results analyze only the results from scientific sources not make assumptions about how an experiment will turn out see if the results of an experiment are what the scientist predicted

The amount of potential energy possessed by an elevated object is equal to

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