335 Answered Questions for the topic mechanical engineering

Mechanical Engineering Math Calculus Physics

12/02/23

Physics lab: how do i find the uncertanity of c (specific heat of water)

Physics lab: how do i find the uncertanity of c (specific heat of water) , when this is the data i have: I have the mass of water= 0.2304 kg, I have the temp for every 15 second time interval, i... more
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Mechanical Engineering Math Calculus Physics

12/02/23

Physics lab: how do i find the uncertanity of c (specific heat of water)

Physics lab: how do i find the uncertanity of c (specific heat of water) , when this is the data i have: I have the mass of water= 0.2304 kg, I have the temp for every 15 second time interval, i... more
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Expert Answers •1
Mechanical Engineering Math Calculus Physics

12/02/23

how do i find the uncertanity of c (specific heat of water)
Physics lab: how do i find the uncertanity of c (specific heat of water) , when this is the data i have: I have the mass of water= 0.2304 kg, I have the temp for every 15 second time interval, i... more
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Expert Answers •1
Mechanical Engineering Math Calculus Physics

12/02/23

how do i find the uncertanity of c (specific heat of water)

Physics lab report question: how do i find the uncertanity of c (specific heat of water) , when this is the data i have: I have the mass of water= 0.2304 kg, I have the temp for every 15 second... more
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Mechanical Engineering Math Civil Engineering Architecture

10/21/23

Strength of materials tangenial stress question

A steel tank has a height of 10 m and a diameter of 5 m. If the tangential stress in the tank measures 80 MPa if it is full of water, determine the approximate thickness of the tank.
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Mechanical Engineering Calculus Physics

10/01/23

using focused laser light, optical tweez
using focused laser light, optical tweezers can apply a force of about 10 pn to a 1.0-/un diameter polystyrene bead, which has a density about equal to that of water: a volume of 1.0 cm3 has a mass... more
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Mechanical Engineering Physics Electrical Engineering

09/30/23

find the magnetic field at a distance r from an infinite wire
find the magnetic field at a distance r from an infinite wire through which a stationary current passes I. Then find the magnetic vector potential
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Mechanical Engineering Math Physics Electrical Engineering

09/30/23

A given referential circuit R is positioned at a certain distance from a magnetic dipole

A given referential circuit R is positioned at a certain distance from a magnetic dipole a) In a certain reference frame A, the circuit moves with speed v and the dipole is stationary. Use the... more
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Mechanical Engineering Physics Computer Engineering

09/19/23

A circular cylinder of diameter 0.4 m rotates at 90 rpm in a uniform stream of 10 m/s.
A circular cylinder of diameter 0.4 m rotates at 90 rpm in a uniform stream of 10 m/s.(a) Locate the stagnation points(b) Calculate the rotational speed when the stagnation point moves off the... more
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Mechanical Engineering Physics

09/18/23

Does Kinetic Energy increase or decrease with mass ?
In an expression for Kinetic energy KE=(mv^2)/2 KE is directly proportional to mass. On the other hand, using linear momentum p=mv, expression for KE becomes KE=p2/(2m) which is inversely... more
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Mechanical Engineering Math Sat Math Electrical Engineering

09/06/23

Determine for which values of x the following series

Determine for which values of x the following series are only convergent:: sum from n=1 to infinity}((-3x)^{n+1 of)/(sqrt(n+2))
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Mechanical Engineering Discrete Math Mathematica Act Math

07/13/23

what is the limit x->1+ (x^3-1)ln(x-1)^5
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06/23/23

Thermodynamics 1
A piston/cylinder assembly contains 0.1 kg R-410A of quality x = 0.25 and at −20°C. The piston is initially free-floating. Stops are mounted so that the volume at the stops is three times greater... more
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Mechanical Engineering Math Calculus Differential Equations

06/09/23

The number of bacteria in a certain culture grows at a rate that is proportional to the number presentThe number of bacteria increased from 300 to 800 in 2 hours
The number of bacteria in a certain culture grows at a rate that is proportional to the number presentThe number of bacteria increased from 300 to 800 in 2 hours.a. State the initial value problem... more
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Mechanical Engineering Math Calculus Differential Equations

06/07/23

check if the differential equation x^2 * y’ = x* y + y^2 is:
check if the differential equation x^2 * y’ = x* y + y^2 is:a) linearb) separable c) Exact
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Mechanical Engineering Math Calculus Differential Equations

06/07/23

check if the differential equation x^2 * y’ = x* y + y^2 is:
check if the differential equation x^2 * y’ = x* y + y^2 is:a) linearb) separablec) Exact
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Mechanical Engineering Math Calculus Differential Equations

06/07/23

Is differential equation x^2 * y’ = x* y + y^2 a) linear b) separable c) Exact
Is differential equation x^2 * y’ = x* y + y^2a) linearb) separablec) Exact
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Mechanical Engineering Math Calculus Differential Equations

06/07/23

Is differential equation x^2 * y’ = x* y + y^2 a) linear b) separable c) Exact
Is differential equation x^2 * y’ = x* y + y^2 a) linearb) separable c) Exact
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Mechanical Engineering Math Calculus Differential Equations

05/31/23

Is this diffrential equation linear or non-liner?
1.) y'' + (2/x)*y' + 3 = x^32.) x*y^3 + x^3 *y' - 33.) sin(x)*y^(4) - (1/x)*y^(2) = cos(x)4.) y'' + 2x* (y')^5 = e^4x
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Mechanical Engineering Physics Matlab Electrical Engineering

05/19/23

design a feedback controller

A mass-spring-damper system is shown. The input is a force, u, acting on the mass block. The output is displacement, y, of the mass block. Using the well-known Newton’s second law, the dynamic... more
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Mechanical Engineering Math Chemistry Physics

05/11/23

particle on a ring, quantum mechanics
A)Explain the reason why Ψ(x) = Acos(πx/L) is not able to describe a particle of mass m in a ring of length L. B) On the other hand, explain why Ψ(x) = Acos^2(πx/L) is.C) When momentum is... more
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Mechanical Engineering Algebra 1 Algebra 2 Calculus

04/24/23

A train travels along a track and its speed (mph) is given s(t)=29t for the first half hour. Its speed is constant and equal to s(t)=29/2 after the first half hour. t is in hours.

How far (miles) does the train travel in the first hour?
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Mechanical Engineering Math Computer Science

04/12/23

Industrial Engineering and Operation Research -- regular points, linearly independence
1. Find all regular points of the set {x ∈ R^4 | 2(x1 +x2 +x3)^3 + 3(x1 +x2 +x3)^2 = 1, x1^2 +x2^2 +x3^2 +x4 = 1}.(( Just help me to look at the gradient of both constraints and determine if it is... more
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Mechanical Engineering Electrical Engineering

04/10/23

How to underwater weld alone?
What inventions need to be made to make this possible? I own a deep water snorkel, and i have welding experience. Seems like no one has achieved this.
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Mechanical Engineering Physics

04/05/23

Determine the members forces.
Please help me solve
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