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As the drawing shows, two thin strips of metal are bolted together at one end and have the same temperature. One is steel, and theother is aluminum. The steel strip is 0.10% longer than thealuminum strip. By how much should the temperature of the strips beincreased, so that the strips have the same length?
Two thin slits are 0.050 mm apart. Monochromatic light of wavelength 634 nm falls on the slits. If there is a screen 6.0 m away, how far apart are adjacent interference fringes
A fox fleeing from a hunter encounters a 0.735 m tall fence and attempts to jump it. By how much does the fox clear the fence
A proton orbits a long charged wire, making1.2106revolutions per second. The radius of the orbit is1.4cm. What is the wire's linear charge density
A duck is floating on a lake with 28% of its volume beneath the water. What is the average density of the duck
100 g of a certain radioactive sample are sealed into a container. after 10 years, only 25 g remain. what is the half life of the sample
A student sits on a rotating stool holding two 3.0 kg objects. When his arms are extended horizontally, Find the new angular speed of the student
A 5,000 kg satellite is orbiting the Earth in a circular path. The height of the satellite above the surface of the Earth is 800km. The velocity of the satellite is (Me = 5.98 x 10^24 kg, Re = 6.37 x 10^6 m, G = 6.67 x 10-11 N • m2/kg2)
A mass is trapped on the x-axis. Its potential energy is given by U=-2x^3 -3x^2 +12x. Where x is i meters and U is in joules. A) Determine an expression for the force that acts on the mass as a function of position.
Three single-phase step-up transformers rated at 10MVA, 4.6kV/13.8kV are connected in Wye-Delta configuration. The three transformers are used to feed a 20MVA load at 0.9 p.f. With an efficiency of 96%. Find the secondary line voltage.
Pulsed lasers used in science and medicine produce very short bursts of electromagnetic energy. If the laser light wavelength is 1062 nm, How many wavelengths are found within the laser pulse
Two capacitors are connected to a battery. The battery voltage is V= 80V, Determine the total energy stored by the two capacitors
Two billiard balls are initially traveling toward each other at speeds of 1.40 m/s for ball 1 and 4.35 m/s for ball 2. Find the final velocities of both balls
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