To solve this problem it is necessary to take into account the concepts related to electrochemical Machining Processes and metal removal. Metal removal rate is determined by Faraday's First law, which states that the amount of chemical change Produced by an electric current is proportional to the quantity of electricity passed, i.e,
Where,
V = Volume of material removed
C = Constant called the specific removal rate that depends on atomic weight (I attached a table with this values)
I = Current
t = time
Since we also have to consider the efficiency of the system to remove the Volume, of all the volume removed, only 95% will be efficient.
From our values we have to
Calculating the value we have that,
The area is simply the calculation of the total units by that of each piece, that is
Therefore we can calculate now the plating thickness through the ratio between Volume and Area
Therefore the average plating thickness on the parts is 0.000716in
Answer:
2.177088 * 10^-8 N
Explanation:
solution;
mass(m1) = 1 * 10 kg
mass(m2) = 8 * 102 kg
distance(d) = 5m
universal gravitational constant (G) =6.67 * 10^-11
we know that,
gravitational force = (G*m1*m2)/d^2
=((6.67 *10^-11) *(1 *10)*(8 *102))/5^2
=(5.44272 * 10^-7)/25
=2.177088 *10^-8
Gravitational force = 2.177088 * 10^-8
Answer:
27.1m/s
Explanation:
Given parameters:
Height of the building = 30m
Initial velocity = 12m/s
Unknown:
Final velocity = ?
Solution:
We apply one of the kinematics equation to solve this problem:
v² = u² + 2gh
v is the final velocity
u is the initial velocity
g is the acceleration due to gravity
h is the height
v² = 12² + (2 x 9.8 x 30)
v = 27.1m/s
Answer:
Explanation:
Given that,
Mass of styrofoam =17g=0.017kg
Net charge is q =−7.00 μC
Electric field of a sheet is given as
E = σ / 2εo
σ= charge density
εo= permittivity of free space =8.85×10^-12
Also electric field is given as
E=F/q
The force acting on the body is its weight which is given as
F=mg,
Where g=9.81
F=0.017×9.81
F=0.16677N.
Therefore,
E=F/q
E=0.16677 /- 7×10^-6
E=-23824.29N/C
Then,
E = σ / 2εo
Then, σ = E × 2εo
σ=-23824.29×2×8.85×10^-12
σ= - 4.22×10^-7C/m²
σ= -42.2×10^-6 C/m²
σ= -42.2 μC/m²
The charge density is -42.2 μC/m²
Answer:
The maximum height the pumpkin reaches occurs at 62.5 horizontal meters from its launching spot.
Explanation:
Notice that we are given the actual trajectory equation:
which corresponds to a curve represented by a parabola.
We can find the maximum of this parabola with arms pointing down requesting the derivative (slope of the tangent line to the curve) to be zero :