Answer:
Explanation:
Energy of system of charges
= k q₁q₂ / r₁₂ + k q₁q₃ / r₁₃ + k q₃q₂ / r₃₂
q₁ , q₂ and q₃ are charges and r₁₂ , r₁₃ , r₃₂ are densities between them
9 x 10⁹ ( 2x2 x10⁻¹²/ .25 + 2x2 x10⁻¹²/ .25 + 2x2 x10⁻¹²/ .25 )
= 9 x 10⁹ x 3 x 16 x 10⁻¹²
= 432 x 10⁻³
= .432 J .
She recoil at a high speed than a low
Answer:
Paper and pulp are made from cellulosic fibers and other plant materials. Some synthetic materials may be used to impart special qualities to the finished product. Paper is made from wood fibers, but rags, flax, cotton linters, and bagasse are also used in some papers.
Answer:
The required frequency = 0.442 Hz
Explanation:
Frequency
where;
Then;
However;
and;
mass
where;
Then;
replacing the values;
Answer:
A. 85 W
Explanation:
case 1: toaster is connected to 130 V outlet
P = Power rating of toaster = 100 W
R = Resistance of the filament
V = Voltage of the source = 130 Volts
Power is given as
R = 169 ohm
case 2: toaster is connected to 120 V outlet
P = Power dissipated
R = Resistance of the filament = 169 ohm
V = Voltage of the source = 120 Volts
Power dissipated is given as
P = 85 W