Answer:
When a positive charged object is placed near a conductor electrons are attracted the the object. ... When electric voltage is applied, an electric field within the metal triggers the movement of the electrons, making them shift from one end to another end of the conductor. Electrons will move toward the positive side. As you know, electrons are always moving. They spin very quickly around the nucleus of an atom. As the electrons zip around, they can move in any direction, as long as they stay in their shell.
Answer:
47391.8 J
Explanation:
Q = m c Δt
For melting, Δt = (962-22)°C
Heat required to attain melting point = 145 x 10 ⁻³ x 236 x 940 =
= 32166.8 J
Heat required to melt at melting point = m L , L is latent heat of fusion.
= 145 x 10⁻³ x 105 x 10³ = 15225 J
Total energy required = 47391.8 J
Answer:
1.98 rad/s
Explanation:
Given that a spring stretches at a distance 
0.1 m when a mass of 0.5 kg is attached to it.
The angular velocity 
If it is stretched 0.2 m from the equilibrium length; we have:
The maximum velocity v = 0.2 × 9.9
v = 1.98 rad/s
Therefore; the maximum velocity of the mass = 1.98 rad/s
