How many resistors out of a package of 100 would you expect

Reference no: EM13563865

1.A mass on a spring has an acceleration given as follows: a= -10 (1/?sec?^2 ) x where x is the displacement of the mass in meters. If the initial position is -1 m and the initial velocity is +1 m/sec, find: (i) the velocity when x = 0 for the first time and (ii) the maximum and minimum values of x.

2.A stone A is dropped from rest down a well, and in 1 second another stone B is dropped from rest. Determine the distance between the stones another second later.

3.A 6.6 mA current is flowing through a 47 kilo-Ohm, 5% tolerance, 2-watt resistor. If the resistor values are uniformly distributed, how many resistors out of a package of 100 would you expect to burn up? At what value of resistances are you OK?

4.Water is pumped 9 mi from a reservoir at elevation 100 ft to a second reservoir at elevation 210 ft. The pipeline connecting the reservoirs has a 54-in diameter. It is concrete and has an absolute roughness of 0.003. If the flow is 25 mgd and pumping station efficiency is 80%, what will be the monthly power bill if electricity costs 3 cents/kwh?

Reference no: EM13563865

Questions Cloud

Calculate rocket position velocity and accelaration : To calculate a rocket’s position, velocity, and acceleration at different points in time. A rocket, initially at rest on the ground, accelerates straight upward with a constant acceleration of 58.8m/s^2

Determine the time when they pass each other : A motorcycle starts from rest at t = 0 and travels along a straight road with a constant acceleration of 4ft/s^2 until it reaches a speed of 50ft/s . Afterwards it maintains this speed. Also, when t = 0, a car located 8000ft down the road is travelin..

What will the cars maximum acceleration rate be under these : A 3000-lb car is traveling on a paved road with Cd (coefficient of drag) = 0.35, Af (frontal area of the vehicle) = 21ft^2, and p(air density)=0.002378 slugs/ft^3. Its engine is running at 3000rpm and is producing 250ft-lb of torque.

What will be the population in the year 2050 : A very small country has just gained independence in the year 2000, at which time its population was 1,000. The new country has a birth rate of 0.02 yr-1, death rate of 0.004 yr-1, immigration rate of 0.01 yr-1, and emigration rate of 0.005

How many resistors out of a package of 100 would you expect : Water is pumped 9 mi from a reservoir at elevation 100 ft to a second reservoir at elevation 210 ft. The pipeline connecting the reservoirs has a 54-in diameter. It is concrete and has an absolute roughness of 0.003. If the flow is 25 mgd and pumping..

Determine the velocity and position of point : Over a long period, total phosphorus (TP) has been discharged to a lake through sewage and surface water runoff at a rate of 10 tons/day. Measures were then taken to reduce the TP load to 1 ton/day. Assume that TP decays by a first order process with..

Calculate the coefficient of variation and determine : Given a one independent variable linear equation that states cost in $K , and given the following information, calculate the coefficient of variation and determine it's meaning. n=8 E(Y-Y^) =6874 Y=314.375 If we used this equation,

Determine the storage content at the end : During a particular 30-day period, the streamflow flowing into a reservoir averaged 5.0 m3/s. Water supply withdrawals from the reservoir averaged 136 mgd. The only other outflow from the reservoir was 9.4 cm of evaporation from the water surface.

Estimate the pressure in the pipeline 1 km downstream : Water leaves a treatment plant in a 450-mm diameter ductile-iron pipeline at a pressure of 600 kPa and at a flow rate of 0.5 m^3/s. a) If the elevation of the pipeline at the treatment plant is 125 m, estimate the pressure in the pipeline 1 km downst..

User Account

All Pages