335 Answered Questions for the topic mechanical engineering

Mechanical Engineering Math Physics Civil Engineering

01/12/20

Equillibrium of forces
Forces X, Y, Z act along the three lines given by the equationsy = 0, z = c; z = 0, x — a; x=0, y — b;prove that pitch of the equivalent wrench isIf the wrench reduces to a single force, shew that... more
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Mechanical Engineering Physics Sat Math Civil Engineering

01/11/20

Line of action of the resultant

Total left direction moments of a coplanar system of forces are given by G, 2G and 4G about the points (0,0) , (1,2) and (2,5) respectively. Find the magnitude and the equation of the line of... more
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Mechanical Engineering

11/27/19

Damping in a system

What is the physical reason for the presence of damping in a real system?
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Mechanical Engineering Physics

11/26/19

Moment of Inertia Parallel axis theorem
Two rods of length a and mass m are joined together at right angle to form a T-squre. Show that MI about center of the T pendulum is (17m*a^2)/12 using parallel axis theorem
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Mechanical Engineering Calculus Physics

11/26/19

Radial and transverse acceleration

A point p describes a curve r= ae^(theta) with a constant angular velocityabout its pole Find the radial and transverse acceleration of point P
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11/21/19

circular motion question
A 67 gram coin sits on a horizontally rotating turntable. The turntable makes 1.7 revolution each second. The coin is located 10 cm from the axis of rotation of the turntable. The coin will slide... more
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11/21/19

friction question
A car is traveling at 25 m/s along a horizontal road. The coefficients of friction between the road and the tires are us=0.95 uk=0.34.Calculate the distance the car travel before stopping if the... more
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Mechanical Engineering Physics Motion

11/21/19

physics circular motion
A 99 gram coin sits on a horizontally rotating turntable. The turntable makes 1.2 revolution each second. The coin is located 10 cm from the axis of rotation of the turntable. The coin will slide... more
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Mechanical Engineering Calculus Geometry Physics

11/07/19

Volume & principal moments of inertia

I want to find the principal moments of inertia of a parallelepiped.What is the volume of the parallelepiped with sides a,2a and 2a
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Mechanical Engineering Physics Moment Of Inertia Dynamics

11/04/19

Moment of Inertia

So I have had these questions confusing me for some time and tried googling but came up with long , hard-to-understand equations and notations and articles. So I would be glad if someone could... more
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10/18/19

How does regenerative breaking work in ac 3 phase motors?

Please explain Regenerative breaking, where an induction motor can be used with a VSD and back feeds power to the VSD? How does is work does the motor act as a generator and create EMF or is it... more
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Mechanical Engineering Math Physics Physics C

10/18/19

Atoy rocket.. PHYSICS HELP
A toy rocket engine is securely fastened to a large puck that can glide with negligible friction over a horizontal surface, taken as the xy plane. The 3.00-kg puck has a velocity of 1.40î m/s at... more
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Mechanical Engineering

10/01/19

Christine, Juan, and Tom have a total of $108 in their wallets. Tom has 4 times what Juan has. Christine has 6 less than Juan. How much does each have?
how would i get the answer
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Mechanical Engineering Fluid Mechanics

09/29/19

If the streamlines of the particles in a flow are parallel to each other, what type of flow can it be?
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Mechanical Engineering Science Physics Ap Physics

09/27/19

Coefficient of Static Friction Physics Problem
A box that weighs 50 N is pulled by a force of 10 N. The coefficient of static friction between the box and the ground is 0.5. Describe what will happen to the box? Will it start moving? Will it... more
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Mechanical Engineering Science Physics Engineering

09/27/19

Moving Elevator Physics Problem
An elevator is suspended by a cable and the elevator weighs 5500 N. The elevator moves upward with an acceleration of 4 m/s2. Find the tension in the supporting cable. * Use 10 m/s2 for the... more
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Mechanical Engineering Algebra Mathematics

09/16/19

What should be the surface of sphere pin??
Hello. There is one steel rod with the of weight 0.6kg, length 150 mm & width 20mm. And i want to put a hemispherical shaped on top. So how big that hemispherical shape will be? How can i... more
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Mechanical Engineering Calculus Physics Moment Of Inertia

09/13/19

Moment of Inertia

A cheerleader has a batton consisting of light rod of 1m and an point mass of 1/2kg at each end.Find the moment of inertia about1.an axis perpendicular to the rod and passing through the... more
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Mechanical Engineering Physics Speed Suvat

09/12/19

How to answer questions involving pulleys?
A small ball,P, of mass 0.8kg is held at rest on a smooth horizontal table and is attached to one end of a thin rope. The rope passes over a pulley that is fixed at the edge of the table. The other... more
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Mechanical Engineering Math Calculus Physics

09/11/19

Integral of Flow Rate
Please Help me to find anti-derivative of system. water that fills the tank, with the flow rate is known, and flow rate outthere is a flowing water with flow rate Qin = 1.5x10^-3 m^3/s that fills... more
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Mechanical Engineering Calculus Physics

08/25/19

Moment of Inertia

How do we compute the moment of inertia matrix of a thin square plate of mass M with sides of size a?
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Mechanical Engineering Calculus Physics

08/18/19

Find the angular acceleration of the rod.
A light rod of length a can turn freely about the end A which is fixed, and the other end B is attached to a particle of mass m. The end B is joined by a string of length a to a small ring C of... more
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Mechanical Engineering Physics

08/18/19

How do we find the center of gravity of a parallelepiped?
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Mechanical Engineering Dynamics

08/13/19

If a ball moves along a curved path the path of the radius of curvature of 5m and the mass of the ball is 10 kg.What should be the velocity of the ball if the force along the normal direction is 18 N?
Dynamics. See title above for question. Looking for specific answer and/or method of solving.If a ball moves along a curved path the path of the radius of curvature of 5m and the mass of the ball... more
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Mechanical Engineering Chemical Engineering Thermodynamics

07/08/19

What is entropy and why do we care?
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