a torsion pendulum is made using a steel wire of radius 0.25mm and a sphere of diameter 3cm. The rigidity modulus of steel is 80GPa and density of the material of the sphere is 11300kg/m^3. If the period of oscillation is 2 sceonds, find the length of the wire​

The consumption of fossil fuels could be

Solar cell a produces 100 joules of energy, when a light source is shown on it for 3 minutes. solar cell b produces 200 joules of energy when the same light source is shown on it for 5 minutes. which solar cell works better? a) solar cell b, because it produces more energy. b) solar cell b, because it generates more power. c) solar cell a, because it produces energy quicker. d) solar cell a, because it generates a greater wattage. eliminate

How does the kinetic energy of a charge change as the charge moves under the effect of an electric field from higher potential to lower potential? a. the kinetic energy increases. b.the kinetic energy decreases. c.the kinetic energy remains the same. d.the kinetic energy is always zero.