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A source emits sound uniformly in all directions. A radial line isdrawn from this source. On this line, determine the radialpositions of two points, 1.28 m apart, such that the intensitylevel at one point is 2.46 dB greater than that at the other. (a) What is the smaller radial position (in m)?(b) What is the larger radial position (in m
In the figure below, a butterfly net is in a uniform electric fieldof magnitude E = 3.0 mN/C.The rim, a circle of radius a = 10 cm, is aligned perpendicular to the field. Thenet contains no net charge. Find the electric flux through the netting.
Assume 3 mol of neon (an ideal monatomic gas) at STP is compressed slowly and isothermally to 0.25 the original volume. The gas is then allowed to expand quickly and adiabatically back to its original volume.
A sample of lead has a mass of 45.00 kg and a density of 1.130 104 kg/m3 at 0°C. What is the mass of the sample of lead at 93.00°C
A Polonium nucleus (m1 = 210 amu) at rest emits an alpha particle (m2 = 4 amu) to the right as a result the nucleus travels to the left at 350 km/s. What is the speed of the alpha particle
Three capacitors are connected in series. The equivalent capacitance of this combination is 2.60, What is the third capacitance (in F)
A +44 nC charge is placed on the z- axis at (0,0,5 cm). A grounded conducting plane fills the x-y plane where z=0. A) Find the surface charge charge density on the conducting plane at the origin.
Two uniform infinite sheets of electric charge densities 17.0 C/m2 and %u201317.0 C/m2 intersect at a right angle. Find the magnitude of the electric field everywhere
A gas with ?=75 is at 285K when it's compressed isothermally to one-third of its original volume and then further compressed adiabatically to one-fifth of its original volume
A jet airplane is in level flight. The mass of the airplane is m = 8950 kg. What is the magnitude of the lift force acting on the plane
A baseball (m = 138 g) approaches a bat horizontally at a speed of 38.6 m/s (86 mi/h) and is hit straight back at a speed of 45.5 m/s (102 mi/h). what is the average force exerted on the ball by the bat
A man clearly see an object that is 2m away(or more) without glasses. if the glasses have a refractive power of +1.50D, how close can an object be to the eyeglasses
A ski jumper leaves the ski track moving in the horizontal direction with a speed of 25.0 m/ s. Obtain the velocity when the jumper lands
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