From equations of motion;
v = u + at, where v = final velocity, u = initial velocity, a = acceleration, t = time taken to reach the final velocity.
Using the values given,
7 = 3 + 0.8*t=> 7-3 = 0.8t
4 = 0.8t
t = 4/0.8 = 5 seconds
As opposed to ionic bonding in which a complete transfer of electrons occurs, covalent bonding occurs when two (or more) elements share electrons. Covalent bonding occurs because the atoms in the compound have a similar tendency for electrons (generally to gain electrons).
Answer:
(a) E=233.56 N/C
(b) The surface charge density of inner surface σ= -5.69×10⁻⁹C/m²
(c)The surface charge density of outer surface σ= 3.25×10⁻⁹C/m²
Explanation:
For Part (a)
The magnitude of the electric field at distance of 15.4 cm from the axis of the shell is given by:
E=λ/2πε₀r
Substitute the given values
Since the nonconducting rod positively charged,it induces a negative charge -q on the inner surface of conducting shell and a positive charge +q on the outer surface of conducting shell,so the net charge of conducting shell is zero
Part (b)
The surface charge density of inner surface is given by:
σ=-q/A
= -λ/2πr
Part(c)
Similarly the surface charge density on the outer surface of the cylindrical shell given by:
σ=λ/2πr
The basic building block of life is knowledge
Answer:
The correct answer is false, a plant dying after being exposed to poison is not a physical change nor is it a physical property.
Explanation: