Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Copper and aluminum are being considered for a high-voltage transmission line that must carry a current of 54 A. The resistance per unit length is to be 0.140 Ω/km. Compute for each choice of cable material the currentdensity.
A) The current density for copper?B) The current density foraluminum?C) Compute the mass per meter of the cable for each material. The densities of the copper and aluminum are8960 and 2700 kg/ m3, respectively.The mass per meter of the copper cable?D) The mass per meter of the aluminum cable?
the cross sectional areas of the pistons in the system have a ratio of 25 to 1. If the maximum force that can be applied to the small piston is 12 N, what is the maximum weight that can be lifted?
Two identical guitar strings are prepared such that they have the same length (2.17 m) and are under the same amount of tension. find the wave propagation speed on the guitar strings
If the water in the river is flowing at 3.0 m/s, explain how long does it take the boat to make a round trip consisting of a 250 m displacement downstream followed by a 250 m displacement upstream?
A place-kicker must kick a football from a point 36.0 m (about 40 yards) from the goal. By how much does the ball clear or fall short (vertically) of clearing the crossbar
An alloy is made of 30% gold, 20% silver and iron. The specific heats of gold, silver and iron are 0.0308, 0.056 and 0.107 cal/go C, respectively. Calculate the specific heat of the alloy
A heat engine operates in a Carnot cycle between 90.0°C and 360°C. It absorbs 20,400 J of energy per cycle from the hot reservoir. How much energy does it expel in each cycle by heat
A rocket of total mass 3180-kg is travelling in outer space with a velocity of 115 m/s toward the Sun.
The multiplicity for a particular system is ?= exp(N^2V^3U^1/2/?), where gamma is a constant to give correct units, V is the volume, N is the number of particles, and U is the energy. What is the system's entropy, temperature, chemical potential, pre..
The wavelength of violet light is about 430 nanometers, or 4.30*10-7 m. The frequency of the violet light reflected from a metal surface and the frequency of the vibrating electron that produces it are the same.What is this frequency?
Suppose the emf of a coil rotating in a magnetic field is zero at t = 0 , and increases to its first peak at t = 0.11 ms. What is the angular velocity of the coil
A test rocket is firedvertically upward from a well. A catapult gives it an initial speedof 79.8 m/s at ground level. Its engines then fire and itaccelerates upward at 4.10 m/s2 until it reaches an altitude of1060 m.
Describe what the Zeroth Law of Thermodynamics is in your own words. Also, draw a scenario that verifies the Law is accurate. State the other Laws of Thermodynamics
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd