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Refrigerant-134a enters a compressor as a saturated vapor at 200 kPa at a rate of 0.03 m3/s and leaves at 700 kPa. The power input to the compressor is 10 kW. If the surroundings at 20°C experience an entropy increase of 0.008 kW/K, determine
(a) the rate of heat loss from the compressor,
(b) the exit temperature of the refrigerant, and (c) the rate of entropy generation.
When two identical ions are separated by a distance of 6.3×10?10m , How many electrons are missing from each ion
A 3.0 µF capacitor is initially connected to a 9.0 V battery. Once the capacitor is fully charged the battery is removed and a 4.0 ohm resistor is connected between the two terminals of the capacitor. Find the current flowing through the resistor
space vehicles traveling through earths radiation belts can intercept a significant number of electrons. the resulting
The current in a 90.0-mH inductor changes with time as I = 1.00t2 %u2013 6.00t (in SI units). At what time is the emf zero
A block of ice of mass 3.70kg is placed against a horizontal spring that has force constant k = 230N/m and is compressed a distance 2.70×10?2m. What is the speed of the block after it leaves the spring
A 4.00mm -tall object is 27.0cm from the center of a silvered spherical glass Christmas tree ornament 6.00cm in diameter. What is the position of its image
A bullet with mass 4.85 g is fired horizontally into a 1.965-kg block attached to a horizontal spring. The spring has a constant 6.29 102 N/m and reaches a maximum compression of 6.40 cm. Find the initial speed of the bullet–block system. m/s
Suppose a light bulb is rated for a voltage of 1.8 V. At this voltage is draws a current of 0.054A, Using Ohm's Law, determine the resistance of the bulb
find the fraction of all the arrows you shoot that land outside a circle of some radius r0 as a function of r0. repeat
A light bulb is placed 14.2 cm in front of a concave mirror. When the concave mirror is replaced by a plane mirror in the same location, Calculate the focal length of the concave mirror
An RLC circuit is set up with a 350 mH inductor, a 6.8 mF capacitor and a 550 W resistor. What is the phase angle of the circuit
Using a vernier caliper of least count 0.01 cm, the length of a cylinder is measured to be 3.76 cm, and its diameter 1.28 cm. Calculate the probable percent error in the volume
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