Answer:
net voltage will become half that of initial voltage now
Explanation:
Initially two capacitors are connected across a given voltage difference
So the net charge on the two capacitors is given as


now when these are connected in parallel with no change in charge
then total charge on each plate is given


also we know that

now we will have


so net voltage will become half that of initial voltage now
Density = Mass / Volume
Mass = Density * Volume
Mass = 30 g/cm³ * 10 cm³ = 300 g
Mass = 300 g
Yes they should all be going the same speed.
Hope this helped :)
Energy of a wave:
E = nhc/λ
3000 = (n x 6.63 x 10⁻³⁴ x 3 x 10⁸)/(510 x 10⁻⁹)
n = 7.69 x 10 ²¹ photons per second per meter²
2.70 cm² = 2.70/10,000 m²
= 2.7 x 10⁻⁴
Photons per second = 7.69 x 10 ²¹ x 2.7 x 10⁻⁴
= 2.08 x 10¹⁸ photons per second
Answer:
1.67 m/s
Explanation:
Momentum is conserved.
Initial momentum = final momentum
(30 kg) (10 m/s) + (35 kg) (-10 m/s) = (30 kg) v + (35 kg) (0 m/s)
300 - 350 = 30v
v = -5/3 m/s
Linus will move at 1.67 m/s in the direction opposite that he started.