Explanation:
Make a table, listing the x and y coordinates of each square's center of gravity and its mass. Multiply the coordinates by the mass, add the results for each x and y, then divide by the total mass.

The x-coordinate of the center of gravity is 15/14 a.
The y-coordinate of the center of gravity is 47/42 a.
Answer:
Θ=0.01525 rad
or
Θ=0.87°
Explanation:
Given data
wavelength λ=2.5 µm =2.5×10⁻⁶m
Diameter d=0.20 mm =0.20×10⁻³m
To find
Angle Θ in radians and degree
Solution
Circular apertures have first dark fringe at
Θ=(1.22λ)/d
Substitute the given values
So
Θ=[1.22(2.5×10⁻⁶m)]/0.20×10⁻³m
Θ=0.01525 rad
or
Θ=0.87°
The electric field of a charged object will be strongest when all the field lines are close to one another.
beacsue, the strength of electric field depends on the number of lines of electric field. More lines at a place, higher the electric field strength. Thus, any charge in that area will face more electric field.
Answer:
oh I know that sounds good to me
Answer:
1.636 x 10^-5 m^3
Explanation:
As we know that
1 mol of copper = 63.5 g of copper
2.3 mol of copper = 63.5 x 2.3 = 146.05 g of copper = 0.146 kg of copper
Density of copper = 8.92 x 10^3 kg/m^3
The relation between mass and volume is given by
mass = volume x density


Thus, the volume of copper is 1.636 x 10^-5 m^3.