Answer:
36.3m/s
Explanation:
We are given that
Mass of block, m=13 kg
Mass of glob,m'=400g=0.4 kg
1 kg=1000g
Total mass, M=13+0.4=13.4 kg
Distance, s=15 cm=0.15m
1m=100cm
Coefficient of sliding friction, 
We have to find the initial speed of the putty.
Friction force, f=
N
Where 
Work done=
Work done=
Work done=7.8792 J
Work done =K.E=



Using conservation of linear momentum





Hence, the initial speed of the putty=36.3m/s
They are both good conductors if both heat and electricity due to the sea of delocalized electrons that is floating around without getting bonded to an atom.
Such electrons can flow around freely to conduct heat and electricity.
Answer:
Yes
Explanation:
Yes it is called the refractive index denoted by n
n=sin<i/sin<r
Answer:
I = (1.80 × 10⁻¹⁰) A
Explanation:
From Biot Savart's law, the magnetic field formula is given as
B = (μ₀I)/(2πr)
B = magnetic field = (1.0 × 10⁻¹⁵) T
μ₀ = magnetic constant = (4π × 10⁻⁷) H/m
r = 3.6 cm = 0.036 m
(1.0 × 10⁻¹⁵) = (4π × 10⁻⁷ × I)/(2π × 0.036)
4π × 10⁻⁷ × I = 1.0 × 10⁻¹⁵ × 2π × 0.036
I = (1.80 × 10⁻¹⁰) A
Hope this Helps!!!
Answer:
0.0257259766982 m
Explanation:
= Atmospheric pressure = 101325 Pa
= Initial diameter = 1.5 cm
= Final diameter
= Density of water = 1000 kg/m³
h = Depth = 40 m
The pressure is

From ideal gas law we have

The diameter of the bubble is 0.0257259766982 m