With the steel washer immersed in the water the triple-beam balance measures the mass of the washer to be less than its mass is out of water. Obviously, the amount of matter that the steel washer is made up of (which is its mass) does not change by placing it in water. Explain why the triple-beam balance records a smaller mass.
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Physics, 22.06.2019 14:30
Which of the following changes will increase the capacitance of a parallel-plate capacitor? (there could be more than one correct choice.) a) increase the charge on the plates b) decrease the poten5al between the plates c) increase the potential between the plates d) introduce a dielectric material between the plates e) decrease the separation between the plates
Answers: 3
Physics, 22.06.2019 19:30
Coal contains energy. a. light b. kinetic c. chemical d. mechanical
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Physics, 22.06.2019 23:50
An alpha particle with kinetic energy 12.5 mev makes a collision with lead nucleus, but it is not "aimed" at the center of the lead nucleus, and has an initial nonzero angular momentum (with respect to the stationary lead nucleus) of magnitude l = p0 b, where p0 is the magnitude of the initial momentum of the alpha particle and b=1.40×10−12 m. (assume that the lead nucleus remains stationary and that it may be treated as a point charge. the atomic number of lead is 82. the alpha particle is a helium nucleus, with atomic number 2.) what is the distance of closest approach?
Answers: 2
With the steel washer immersed in the water the triple-beam balance measures the mass of the washer...
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