Answer:
One positive and one negative
C. 10 m/s
You divide 1000 m by 100 s.
1000/100 to find the velocity
Answer:
The temperature of the CMB is cooler, not hotter, than at the time of the big bang.
Explanation:
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Answer: 3
Explanation:
Given
One cloud is traveling at rate of 
combined velocity of the two is 
Suppose the masses of the clouds be 
Conserving momentum

Answer:
Voltage across the capacitor is 30 V and rate of energy across the capacitor is 0.06 W
Explanation:
As we know that the current in the circuit at given instant of time is
i = 2.0 mA
R = 10 k ohm
now we know by ohm's law



so voltage across the capacitor + voltage across resistor = V


Now we know that

here rate of change in energy of the capacitor is given as


