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Liquid Sodium leaves a nuclear reactor at 800°C and is used as the energy source in a steam power plant. The condenser cooling water comes from a cooling tower at 15°C. Determine the maximum thermal efficiency of the power plant?
To push a 56.0-kg crate up a frictionless incline angled at 34.0° to the horizontal, a worker exerts a force of 484 N parallel to the incline. What work is done on the crate by the worker
Visible light passes through a diffraction grating that has 900 slits per centimeter, and the interference pattern is observed on a screen that is 2.40 m from the grating, What is the difference between these wavelengths
A proton ,a neutron and an alfa particle ,accelerated through the same potential difference ,enter a region of uniform magnetic field moving at right angles to B.(a) compare their kinetic energies .(b) if the radius of the proton’s circular path is 1..
a metal plate of mass (m=20kg) slides down a slope of height (h=10 meters) and angle (theta=30Â °). what is the magnitude of the work done by friction
A simple harmonic oscillator consists of a block of mass 2.2kg attached to a spring of spring constant 26N/m. When t = 1.60 s, the position and velocity of the block are x = 0.128m and v = 3.170 m/s. (a) What is the amplitude of the oscillations? ..
With light from a gaseous discharge tube incident normally on a grating with slit separation 2.14 μm, sharp maxima for a certain wavelength of light are produced at angles θ = -15.7° and +15.7°. Compute the wavelength of the light in nanometers.
A charging bull elephant with a mass of 5240 kg comes directlytoward you with a speed of 4.55m/s. You toss a 0.150 kg rubber ballat the elephant with a speed of 7.81 m/s.
Changes in wind and tide made average speed on return trip 3 mph slower than the speed on the way out. If the total time of the trip took 9 hours find speed of both the going and the return trip.
find the equivalent capacitance of three capacitors c1 5.0 uf micro f c2 10 uf micro f and c3 12 uf micro f when
Express how unmet basic physiological needs of oxygen, nutrition, temperature, and humidity threaten clients' safety.
a 360g block hangs from a spring with k5.19 nm. at t0s the block is 18.4 cm below the equilibrium position and moving
A microscope has an eyepiece of focal length 2.00 cm and an objective of focal length 3.00 cm. How far from the eyepiece is the image formed by the objective
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