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in a reversible process called isothermal expansion 457 j of heat are transferred into a quantity of gas in an engine
through one engine cycle a lawnmower engine does 552 j of net work in the process it expels 153 j of energy as heat
an airplane is flying during a thundercloud at a height of 2100 m this is a very dangerous thing to do because of
a narrow beam containing 2000 mono energetic photons is reduced to 1000 photons with a slab of copper 10-2 m thick what
a heavy ball and a light ball are dropped in the absence of air resistance1- the two balls will experience the same
the electric field near the surface of earth points downward and has a magnitude of 150 nc what is the ratio of the
three point charges are placed as shown in the figure figure 1 the positive point charge has a value 35nc what is the
a river is l 268 km wide the banks are straight and parallel the current is 26 kmh and is parallel to the banks a boat
a baseball is thrown vertically upward neglecting air resistance what is the acceleration of the ball at its highest
point charges of 430 microc and 280 microc are placed 0500 m apart1 nbspat what point along the line connecting them is
a charge of -529 nc is uniformly distributed on a thin square sheet of non conducting material of edge length 233 cm
the nucleus of a 125xe atom an isotope of the element xenon with mass 125 u is 60 fm in diameter it has 54 protons and
lasers can be utilized to drill or cut material one such laser generates a series of high-intensity pulses rather than
when jumping from a standing position paola can flex her legs from a bent position during a distance of 20 cm paola
assume some dog tags create a sound with a frequency of 1387 hz at rest you place these dog tags on a greyhound dog the
a charge of -291 c is fixed at the center of a compass two additional charges are fixed on the circle of the compass
the speed of an alpha particle is determined to be 475x106 ms if all of its kinetic energy is acquired with passing
what is the rotation rate of 1500 inch diameter wheels on a vehicle traveling at 520 miles per hour express your answer
a 21g plastic bead charged to -50nc and a 36g glass bead charged to 180nc are 16cm apart center to centerwhat are the
a hollow metal sphere has inner and outer radii of 6cm and 10cm a point charge is located at the center of the sphere
a dipole has two charges of 25c and -25c what is the flux during a gaussian surface that includesa only the positive
an in finely long thing rod has positive charge uniformly distributed along it the charge per unit length is lambda
a blue ball is thrown upward with an initial speed of 222 ms from a height of 06 meters above the ground 27 seconds
a fibre optic cable or light pipe consists of a central strand of material surrounded with an outer coating the
two capacitor plates are equally and oppositely charged they are separated by 14cm an electron is released from rest at