335 Answered Questions for the topic mechanical engineering

Mechanical Engineering

06/27/21

State and explain in detail Grashof's law for a four-bar mechanism.
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Mechanical Engineering

06/26/21

machine desing engineering
Design a V belt to transmit 8.5 kW power from a pulley rotating at 1500 rpm to a fan pulley to rotate at 500 rpm (neglecting slip). The fan is to be used for 24 hours a day and space does not... more
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Mechanical Engineering Physics Civil Engineering

06/17/21

applied hydraulics
In a 30 mm diameter pipe, 0.1 mm roughness and 200 m long, 1.5 L/s of water flows at 20oC. Calculate the head loss hf and the unit head loss J = hf/L
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Mechanical Engineering Physics Civil Engineering

06/17/21

applied hydraulics

In the flow of a fluid there is a galvanized steel duct (e = 0.180 mm; D = 100 mm); Q = 20 L/s; ν = 3604 x 10-4 m2/s; γ = 1,324 kgf/m3. The question is: what is the head loss in fluid m.c. and the... more
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Mechanical Engineering Calculus

06/06/21

How to convert the Reynolds equation from Cartesian coordinate (equation1) to polar coordinate (equation2)? by showing the steps?
∂/∂x ((ρh^3)/12μ ∂p/∂x) + ∂/∂z ((ρh^3)/12μ ∂p/∂z) = ∂/∂x (ρh (U_1+U_2)/2) + ∂/∂z (ρh (W_1+W_2)/2) + (∂(ρh))/∂t (1) 1/r ∂/∂r (r (ρh^3)/12μ ∂p/∂r) + 1/r ∂/∂θ ((ρh^3)/12μ ∂p/r∂θ) = rω/2 ∂(ρh)/r∂θ +... more
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Mechanical Engineering Calculus

06/06/21

How do I convert the Reynolds equation from Cartesian to Cylindrical (polar) coordinates?
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Mechanical Engineering Physics

06/04/21

determine the total distance travelled (in meters) by the particle at time t = 4 s
The acceleration of a particle is defined by the relation a = −15t (m/s2)Knowing that X = 24 m, and v = 29 m/s when t = 0, determine the total distance travelled (in meters) by the particle at time... more
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Mechanical Engineering Probability Computer Engineering Maths

05/30/21

If a random variable X follows exponential distribution with parameter λ = 2 ,then its probability density function is given by
choose the correct answera. f (x)  2e2x , x  0 b. f (x)  12 e 12 x , x  0 c. f (x)  2e2x , x  0 d. f (x)  12 e 12 x , x  0
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Mechanical Engineering

05/26/21

mechanical engineering
Knowing that W = 12 kN, draw the shear and bending-moment diagrams for beam AB and determine the maximum normal and shear stresses due to bending. PLEASE DETERMINE THE SHEAR STRESSlink for image:... more
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Mechanical Engineering Algebra 2 Calculus Precalculus

05/15/21

Find the limit by direct substitution.
= ________
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Mechanical Engineering

05/15/21

Mass and weight
A weight G = 10 N is subjected to a vertical upward pulling force F = 20 N. At the beginning, the weight is stationary. After some time, it is lifted up to 2 m, what is its velocity at this moment?... more
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Mechanical Engineering Science Physics Physical Science

05/07/21

Please provide guidance for the problem. What should I do to solve the problem about new unit pixel design?
Please provide guidance for the problem. What should I do to solve the problem about new unit pixel design? A hypothetical client working for a technology company demands a new design for their new... more
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Mechanical Engineering Math Science Calculus

05/05/21

Determining the interval of convergence of Power series
Lets say you have a function f(x)= (1/4)+(2/4^2)+(3/4^3)+...+(((n+1)*x^n)/4^(n+1) for all xa) What would the interval of convergence of this power series beb) Find the limit as x approaches 0 of... more
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Mechanical Engineering Math Calculus

05/05/21

How to determine series
Let f(x)= ∑n=1∞ (-1)^n (x/4)^n. Find the series and interval of convergence for the integral from 0 to x of f(t)dt
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Mechanical Engineering Math Calculus Calculus Bc

05/05/21

Interval of convergence
Lets say you have a series ∑n=1∞ ((3x+2)^(n+1))/n^(5/2). What would the interval of convergence be?
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Mechanical Engineering Physics Mechanics Of Materials

04/30/21

A simple pendulum consists of a small mass of 72 g suspended from a light inelastic cord. During oscillations with 50 amplitude, this pendulum completes 60 oscillations every 1 minute. Calculate:
A simple pendulum consists of a small mass of 72 g suspended from a light inelastic cord. During oscillations with 50 amplitude, this pendulum completes 60 oscillations every 1 minute.... more
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Mechanical Engineering Maths

04/28/21

Please help with this question
A train X runs on a straight horizontal track that connects stations A and C. Station B lies between A and C. Figure 2 shows the graph of the speed, v m s−1, of train X against the time, t minutes,... more
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Mechanical Engineering Math Calculus Trigonometry

04/27/21

Average Value Theorem
If the average value of the function f on the interval 1≤x≤4 is 8, what is the value of ∫41 (3f(x)+2x)dx ?Note: that is, the integral from 1 to 4 of 3f(x)+2x)dx
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04/24/21

Find approximate error
at a distance of 50 meter from foot of tower the elevation of its top is 30 degree if the possible error in measuring the distance and elevation are 2cm and 0.05 degrees find approximate error in... more
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04/22/21

What is the maximum decimal value represented by a 6-bit signed binary number with a 3-bit fraction.
What is the maximum decimal value (positive value) represented by a 6-bit signed binary number with a 3-bit fraction.
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04/22/21

How many 3-input AND gates are required to AND 26 signals?
How many 3-input AND gates are required to AND 26 signals?
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04/22/21

How many 3-input AND gates are required to AND 26 signals?
How many 3-input AND gates are required to AND 26 signals?
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Mechanical Engineering

04/22/21

Need help on this question plsss
Calculate the atomic packing factor (APF) for the face-centered cubic (FCC) unit cell, assuming the atoms to be hard spheres. Note: You will not get points for just writing the APF. You need to... more
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Mechanical Engineering Chemical Engineering Thermodynamics

04/12/21

Thermodynamics- Combustion -Conservation of Energy
I was able to figure problem one, but I need help with problem 2. Thank you for the help!Problem #1: Ethane (C2H6) gas at mass flow rate of 1.5 kg/min is mixed with air (O2 + 3.76N2) at mass flow... more
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Mechanical Engineering

04/10/21

the bucket is hoisted by the rope that wraps around a drum wheel with a radius of 0.75 ft. if the angular velocity of the wheel is 31 rad/s, determine the speed of the bucket, in ft/s
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