Two cars split onto seperate roads. One goes straight and the other peels ot the right. What is the acceleration of B with respect to A in mi/hr^2 at the point shown in the figure? --- (See attached file for full problem description)
A pulley system is released from rest. Find the acceleration of both of the weights on the pulleys. --- (See attached file for full problem description)
What value of x will maximize: r(x)=r^2*(ln(1/x)? x can take values between 1/4 and 1
A picture of the system has been attached. There is no friction between m and m1. How would you determine the coordinates to describe the system and the equations of motion?
The length of cast-iron pipe is to be 4200 ft., and the head causing flow is to be 12.6ft. After the pipe has been in service 5 years, it is expected to discharge water at a rate equal to 3.2 cfs. Using a Hazen-Williams Formula Chart in which C = 160 What is the diameter of the pipe? 16 in., 12 in., 14 in., 10 in. The head fl
Please show each step of your solution. When you use theorems, definitions, etc., please include in your answer. If there is anything unclear in the problem, let me know. Thank you. (See attached file for full problem description)
The two 10-Kg slender bars (10-m long each) are released from rest in the position shown. Assuming the floor to be smooth, determine the angular acceleration of the bar AB, right after release. See attached
A pendulum consists of a uniform 10-lb plate and a 3-lb slender rod, the whole system swinging around a pin at 0 as shown. At the instant shown (theta = 30) the pendulum has a counterlockwise angular velocity of 5 rad/s. Determine the pin reactions at 0. see attached
Bar ABCD is guided by two blocks at B and C moving in slots as shown. Block B moves downward at a constant speed of Vb = 10ft/s. Using the method of instantaneous center of zero velocity, determine (a) the angular velocity of the link, (b) the velocity of the block C at the instant when theta = 35 degrees, and (c) the angular ac
Water is the working fluid in an ideal Rankine cycle. Saturated vapor enters the turbine at 18 MPa. The condenser pressure is 6 kPa. How to determine the quality of the fluid at the turbine exit, and the heat transfer to the steam passing through the boiler in kJ per kg of steam flowing? The enthalpy of the steam entering the
Ever wonder if you can build a machine to heat up your house using the heat from the outside environment? Well you'll need to start with the heat pump concept. In this example, you'll learn how to determine the maximum theoretical coefficient of performance for a heat pump operating at steady state between a dwelling at 70 de
You have a box that contains 100 kmoles of dry air and 1 kmole of water vapor. The contents are at a pressure of 100 kPa. Someone says that they need to have the enthalpy of the mixture to be 63.8 kJ/kg dry air where 0 degrees Celsius is the reference temperature at which enthalpy is zero. Find the following: a.) The Specif
A vapor-compression heat pump system uses R-134a as the working fluid. The refrigerant enters the compressor at 0.24 Mpa, 0 degrees Celsius, with a volumetric flow rate of 0.6m^3/min. The compression process is adiabatic to 0.9 MPa, 60 degrees Celsius, and saturated liquid exits the condenser at 0.9 MPa. Find the following:
Water is the working fluid in an ideal Rankine cycle. Saturated vapor enters the turbine at 18 MPa. The condenser pressure is 6 kPa. How do I determine the quality of the fluid at the turbine exit, and the heat transfer to the steam passing through the boiler in kJ per kg of steam flowing. The enthalpy of the steam entering the
How do I determine the maximum theoretical coefficient of performance for a heat pump operating at steady state between a dwelling at 70 deg F and a pond at 40 deg F?
How do I determine the maximum theoretical coefficient of performance for a heat pump operating at steady state between a dwelling at 70 deg F and a pond at 40 deg F? For the dwelling, if heat transfer through the walls and roof is 6.5x10^5 Btu per day, how would I determine the minimum theoretical power, in hp, to drive a he
At steady state, a new power cycle is claimed by its inventor to develop 6 horsepower for a heat addition rate of 400 Btu/min. If the cycle operates between reservoirs at 2400 and 1000 deg R, is the claim feasible?
Air enters a 0.6 m diameter fan at 16 deg C, 101 kPa, and is discharged at 18 deg C, 105 kPa, with a volumetric flow rate of 0.35 m^3/s. Assuming ideal gas behavior, how do I determine for steady-state operation, the mass flow rate of air, in kg/s? How do I figure the volumetric flow rate at the inlet, in m^3/s and the inlet ve
Ammonia is stored in a tank with a volume of 0.21 m^3. How do I determine the mass, in kg, assuming saturated liquid at 20 deg C.
A closed vessel with a volume of 2 ft^3 contains 5 lb of Refrigerant 134a. A pressure sensor in the tank wall reads 71.39 lbf/in.^2 (gage). If the atmospheric pressure is 14.4 lbf/in.^2 how do I find the temperature of the refrigerant, in deg F?
An object whose mass is 1 lb has a velocity of 100 ft/s. How would I determine the final velocity, in ft/s, if the kinetic energy of the object decreases by 100 ft*lbf? What would be the change in elevation, in ft. associated with the 100 ft*lbf change in potential energy if g=32.0 ft/s^2?
Steam @ 10 MPa, 600 degrees celcius enters the first-stage turbine of an ideal Rankine cycle with reheat. The steam leaving the reheat section of the steam generator is @ 500 degrees celcius, and the condensor pressure is 5 kPa. If the quality at the exit of the second-stage turbine is 90%, determine the cycle thermal efficien
1) Consider the rate r = ½ in the convolution encoder shown below. Find the encoder output (Y1, Y2) produced by the message 10111. Assume that the initial state is zero. 2) Find the state diagram for the attached.
1. The spring - mass system shown in figure 1 (see attached) is subjected to a triangular force for the time duration td. Determine... (a) the amplitude of the motion at time ... (b) the system response equation after time .... Please see attachment for complete question.
Question: Two full-size 2x6 inch planks are connected as shown by lag screws to form a beam which is subject to a vertical shear of 400 lb. Knowing that the allowable shearing force is 360 lb in each lag screw, how would I determine the largest permissible longitudinal spacing (s) of the lag screws, and the maximum shearing stre
The rigid bar ABCD is suspended from three identical wires as shown. Knowing that a=b, how would I determine the tension in wires A, B, and D caused by the load P applied at C?
For the beam and loading shown how do I find the maximum absolute values for the shear and bending moment? See the attached file.
Question: Semicircular grooves of radius r must be milled in the top and bottom portions of a steel bar as shown in the attached file. Using an allowable stress of 100 MPa, how do I determine the largest bending moment which may be applied to the bar shown when the radius of the semicircular grooves is 20 mm?
The wheel and axle system shown attached in Figure Q2 supports a free hanging mass of 360g. The mass is initially a distance of 2.16m above the floor level when it is released causing the mass to hit the floor 6.2s later. The mass of the wheel and axle system is 40.2kg and its effective radius of gyration is equal to 2.8cm. (
Question 1: A train accelerates uniformly along a straight track and passes three trackside markers. The distance between the first two markers is equal to 0.25 km and between the second and third the distance is 0.4km. The train takes 26.6 seconds to travel between the first two markers and its speed as it passes the second ma
Question 4: (a) Calculate the force required to punch out a rectangular hole 100m x 50mm in a 2mm thick aluminium sheet. The ultimate strength in shear is 125 MN/m^2. (b) If the maximum force which can be exerted by the press is 45kN, what is the greatest thickness that can be punched out? Question 5: Two co-axial sha