Answer:
Time taken t = 4.167 seconds (Approx)
Explanation:
Given:
Initial Speed u = 12 m/s
Final speed v = 0 m/s
Acceleration a = -50 m/s²
Find:
Time taken t
Computation:
v = u + at
0 = 12 + (-50)t
t = 4.167 s
Time taken t = 4.167 seconds (Approx)
Nonane because the molecule contains 9 carbon atoms without any side branches (Non-) and because it only contains single C-C bonds so it is an alkane (-ane).
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
