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A spring has a spring Constant, k=90N/m calculate the extension of the spring when 0.45J of work are done stretching it?
A vertical spring has a force constant of 125N/m. By how much will the spring be compressed if a mass of 0.525kg is placed on top of it?
It takes 365.25 days for the earth to complete one revolution around the sun. Calculate the
A. Period
B. Frequency
C. Angular frequency of earth as it revolves around the sun.
A 9 V battery is connected to a resistor with resistance of 1.60 ohm
a) how many electrons leave the battery per minute?
b) if the resistor is made of copper wire eith radius of 25 micrometre, calculate the length of the copper wire. The resistivitu of coller is given as 1.68×10^8 micrometre × m
A sound source of frequency 1000 Hz moves at 40.0 m/s toward a listener who is at rest. What is the apparent frequency heard by the listener? (speed of sound = 340 m/s)
Two long, straight, parallel wires, 10.0 cm apart, carry equal 4 A currents in the same direction as shown. Find the magnitude and direction of the magnetic field at (a) point P1(midway between the wires), (b) point P2 and (c) point P3.
A 10-ft³ vessel of hydrogen at a pressure of 305 psia is vigorously stirred by paddles until the pressure becomes 400 psia. Determined (a) ∆U,and (b) W. No heat is transferred, cv= 2.434 Btu/lb.R
A reversible, nonflow, constant volume process decreases the internal energy by 316.5kJ for 2.268 kg of gas for which R= 430 J/kg.K and k= 1.35. For the process, determimed
(a) the work, (b) Q, and (c) ∆S. The initial temperature is 204.4°C.
A perfect gas has a value of R=58.8ft.lb/lb.R and k=1.26, If 20 Btu are added to 5lb of this gas at constant volume when the initial temperature is 90°F, find (a) T2, (b) ∆H, (c) ∆S, (d) ∆U and (e) work of non flow process.
How do I calculate inpedance in a circuit
