The answer is Depression. Jessica's mother died a year ago, but Jessica can't seem to move on. Jessica is still having a hard time sleeping at night, and concentrating in school. Last week, Jessica was even crying in the bathroom. Jessica is suffering from a medical illness called Depression. Depression<span> causes feelings of sadness and/or a loss of interest in activities once enjoyed.</span>
C. math // the other 3 classes are electives.
Answer:
0J
Explanation:
Mass of the lump M1 = 1.0 kg, initial velocity of the lump U1 = 2m/s to the right,
mass of the metal sphere M2 = 0.5kg, initial velocity of the metal sphere M2 = -4m/s to the left. using conservation law of momentum;
M1U1 + M2U2 = V (M1 + M2)
(1.0 × 2) + (0.5 × -4) = V (1 + 0.5)
2 -2 = V (1.5)
0 = V (1.5)
divide both side by 1.5
0/1.5 = V 1.5/1.5
V = 0
since final velocity after sticking together of the two masses equals zero then their combined kinetic energy will also equal to zero
1/2 V(M1 +M2)
1/2 ×0 × 1.5 = 0J
The questions aren’t the same for everyone, it always changes so to be safe don’t just study 2019 questions, but the star test should be easy
