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A proposed ocean thermal-energy conversion (OTEC) system is a heat engine that would operate between warm water (26°C) at the ocean's surface and cooler water (3°C) 1,652 meter below the surface. Find what is the maximum possible efficiency of the system?
The helicopter view in the figure below shows two people pulling on a stubborn mule. What is the single equivalent force magnitude and direction
The vibration of an o2 molecule has a wavenumber of 1580.4 cm^-1 Calculate the energy (in joules) of the first excited state?
A convex mirror used in a store has a focal length of -60 cm. A person in the aisle is 2.0 m from the mirror. How far from the mirror is the image
A laser that produces a spot of light that is 1.20 mm in diameter is shone perpendicularly on the center of a thin, what is the power of the laser
The mass of a robot is 5420 kg. This robot weighs 3670 N more on planet A than it does on planet B. Both planets have the same radius of 1.33 x 10^7 m. What is the difference MA - MB in the masses of these planets?
A jogger accelerates from rest to 3.49 m/s in 2.40 s. A car accelerates from 21.0 to 31.8 m/s also in 2.40 s, Find the magnitude of the acceleration of the jogger
Light of wavelength 440nm in air shines on two slits5.50×10?2mm apart. The slits are immersed in water(n = 1.33), How far apart are the fringes on the screen
a 10 gram ice cube at 10 degree celsius is dropped into 40 grams of water at 30 degree celsius. after the two come into
Norma the astronaut is on a 100m lifeline outside a spaceship, circling the ship with an angular speed of 0,100 rad/s. How far inward can she be pulled before the centripetal acceleration reaches 5g = 49m/s2?
What is the rms current in an RC circuit if R= 5.20 K? , C= 1.50 uF, and the rms applied voltage is 120 V at 60.0 Hz
the normal human eye has maximum visual acuity with a pupil size of about 3. for larger pupils acuity decreases due to
The electric field of a capacitor remains unchanged, if the plates change their separation, but the charges remain the same. Show with equations the new energy of the capacitor relative to the initial energy, if the separation is doubled.
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