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A middle-aged man typically has poorer hearing than a middle-aged woman. In one case a woman can now begin to hear a musical tone, while a man can now begin to hear the tone only when its intensity level is increased by 6.2 dB relative to the just-audible intensity level for the woman. What is the ratio of the sound intensity now detected by the man to the sound intensity now detected by the woman?
An object with total mass mtotal = 15.8 kg is sitting at rest when it explodes into three pieces. One piece with mass m1 = 4.6 kg moves up and to the left at an angle of ?1 = 19.0° above the –x axis with a speed of v1 = 27.8 m/s
A person 1.8 m tall stands 0.74 m from a reflecting globe in a garden. How large is the person's image
A 7.00 kg bowling ball collides head-on with a 2.00 kg bowlingpin, which was originally at rest. The pin flies forward with aspeed of 3.00 m/s. what was the initial speed of the ball
Assume that the volume of the empty spaces between the candes is negligible. If the height of the candes in the container increases at the rate of 0.270 cm/s, at what rate (kilograms per minute) does the mass of the candies in the container increa..
the electric field in a certain region of space has components ex 6.0 nc ey 7.0 nc and ez 0. find the electric flux
A skier is gliding along at 2.8m/s on horizontal, frictionless snow. He suddenly starts down a 10?incline. what is the distance of the incline
An electron on the axis of an electric dipole is 37 nm from the center of the dipole. What is the magnitude of the electrostaticforce on the electron if the dipole moment is 4.6 x10-28 C·m? Assume that 37 nm is much larger than the dipole charge se..
An empty capacitor is connected to a battery and charged up.The capacitor is them disconnected from the battery, and a slab ofdielectric material is inserted between the plates of thecapacitor. What happens to the potential difference between the ..
The human eye can barely detect a star whose intensity at the earth's surface is 1.6E-11W/m2. how many photons per second enter the eye from the star
The maximum gauge pressure in a hydraulic lift is 17.0 atm. What is the largest size vehicle(kg) it can lift if the diameter ofthe output line i9s 28.0cm
A ray of light originating in oil (n = 1.21) is incident at the Brewster angle upon a flat surface of a quartz crystal (n = 1.458). Determine the angle of incidence for this ray
consider a spring that does not obey hookes law very faithfully. one end of the spring is fixed. to keep the spring
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