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
Answer: ¢4. 8
Explanation:
Power consumed = 200 watt
= 200/1000 = 0.2kw
The bulb lights for 8 hrs a day for the month of april,
April has 30 days, therefore total hrs = 8 x 30 = 240 hrs
Energy usage = 0.2 x 240 = 48 kWh
At the rate of ¢0.10/kWh, total cost will be;
0.1 x 48 = ¢4.8
Grow less water-intensive crops.
Prevention is always the best approach. In areas with high evaporation rates and high salinization potential, growing crops with low water demand minimizes the amount of salinization that occurs.
Answer:
Africa,india,indonisia,maliysia
Explanation:
Africa,india,indonisia,maliysia mag kapariha tayo ng clima dahil ang ating bansa ay nasa pacific nasa aquetor ang ating bansa at iba PA.
