A block and a beaker of water are placed side-by-side on a scale (case A). The block is then placed into the beaker of water, where it floats (case B). How do the two scale readings compare?
1.Scale A reads more than scale B.
2.Scale A reads the same as scale B.
3.Scale A reads less than scale B.
4.Not enough information.
2
You might also like to view...
Very low-intensity light passing through a double slit produces a pattern that
A) is built up one photon at a time. B) reveals which slit each photon passed through. C) changes only in intensity as time passes, not in detailed structure.
Since the rest energy of an electron and its antiparticle a positron is 0.511 MeV, a gamma ray must have an energy larger than 1.022 MeV to produce an electron-positron pair
a. True b. False Indicate whether the statement is true or false
Simple Pendulum: Grandfather clocks are designed so they can be adjusted by moving the weight at the bottom of the pendulum up or down. Suppose you have a grandfather clock at home that runs slow. Which of the following adjustments of the weight would make it more accurate? (There could be more than one correct choice.)
A. Raise the weight. B. Lower the weight. C. Add more mass to the weight. D. Remove some mass from the weight. E. Increase the amplitude of swing by a small amount.
Astronauts, in satellites orbiting Earth, feel weightless. Are they really weightless?
A) Yes, because the centrifugal force due to their circular motion balances the force of gravity. B) Yes, because they are not in Earth's gravitational field. C) Yes, because they are "falling" around Earth. D) No, because the gravitational force is pulling downward on them. E) No, because the centrifugal force is pulling outward on them.