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What is the magnitude of the impulse applied to the projectile by its weight from t = 0 s to 3 s? GIVEN: Mass of projectile= 20 kg initial velocity = 20 m/s @ θ=60 magnitude of velocity = 15.
Kinetic and potential energy effects are negligible. Determine a) the quality (x) of the entering H 2O and b) the rate of heat transfer (Q) between the heat exchanger and its surroundings, in kW.
Water is the working fluid in a cogeneration cycle that generates electricity and provides heat for campus buildings. Steam at 2MPa,320 degrees Celsius, expands through a two turbine configuration.
Determine the time rate of change of water temperature as it flows through the pipe using the material derivative of temperature.
Consider an acrylic sheet of thickness L = 5 mm that is used to coat a hot, isothermal metal substrate at Th = 300 degrees C. The properties of the acrylic are ρ = 1990 kg/m^3, c = 1470 J/(kg*K)
You have a cylindrical beverage container that has been sitting in your hot car all day, and is now at a temp of 50 deg C. It will now be placed into your refrigerator to cool down by natural convec
Water flowing from the oscillating slit produces a velocity field givin by V=u(o)sin[w(t-y/v(o))]i +v(o)j. Find the components of Acceleration ax,ay,az
A 3-kg stone is dropped from height h and strikes the ground with a velocity of 30m/s. (a) Determine the kinetic energy of the stone as it strikes the ground and the height h from which it was dropp
Two blocks A and B, of mass 8 kg and 12 kg respectively, hang from a cable which passes over a pulley of negligible mass.
Calculate the thrust produced by the motor on a test standard sea-level pressure draw the rocket horizontally such that the direction of motion is to the right. Let the positive x-axis point to the
Determine the distanced s traveled by the 10-kg cart before it comes to rest (a) if m approaches zero and (b) if m=2kg . Assume no mechanical interference.
Water vapor (H2O) is heated during a steady-flow process at 1 atm from 298 to 2400 K at a rate of 0.6 kg/min. Determine the rate of heat supply needed during this process, assuming
Team dynamic are based on a number of interpersonal and environmental factors that influence a team's behavior. What are the team leader's responsibilities in assisting the team in maximizing team
Estimate the temperature reached by the heater when dissipating 50W with the surface of the block at a temperature of 25oC.
The inlet state is 40 psia and 440F. The exit state is 15 psia and 220 F. The exit area is 0.0270 ft2. Compute the final velocity in ft/s.
The total external force on an object is F = 10t i + 60 j (lb). At t = 0s, the object's velocity is v = 20 j (ft/s). At t = 12 s, the x-component of its velocity is 48 ft/s. What is the magnitude o
The shovel's dimensions are: a=53.0 mm, b= 212mm., c= 318mm., d=106mm., e= 371mm. Find the reaction force at E.
A hydrogen gas in a piston/cylinder assembly at 280K, 100 kPa with a volume of 0.1 m^3 is now compressed to a volume of 0.01 m^3 in a reversible adiabatic process. Find the new temperature, in K, a
A projectile mass m travels along the posotive x coordinate direction at a speed of 300 m/s breaks into three parts m1, m2, and m3. The fragments move in the x-y plane.
Determine (a) the temperature of the air at the compressor outlet and (b) the minimum volume flow rate of ambient air required to avoid knock.
Compression is isentropic to the condenser pressure of 10bar. There are no significant pressure drops in the flows through the condenser and the two evaporators, and the refrigerant leaves the conde
Determine the resultant lift force P that this wing supports, assuming this force is vertical and that only the wings provide lift.