Blood pressure is normally measured with the cuff of the sphygmomanometer around the arm. Suppose that the blood pressure is measured with the cuff around the calf of the leg of a standing person. The reading of the blood pressure will be
1.the same here as it is for the arm.
2.less than it is for the arm.
3.greater than it is for the arm.
3
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A solid block of metal in electrostatic equilibrium is placed in a uniform electric field. Give a statement concerning the electric field in the block's interior
A) The interior field points in a direction opposite to the exterior field. B) The interior field points in a direction that is at right angles to the exterior field. C) The interior points in a direction that is parallel to the exterior field. D) There is no electric field in the block's interior. E) Not enough information is given to make a statement concerning the elecric field on the block's interior.
What observational evidence supports the conclusion that most of the mass of the Milky Way is in the form of dark matter?
A) There is no observational evidence; it is only a theoretical idea based on computer models indicating that the Milky Way could not have formed unless it had much more mass than it contains in stars and gas. B) Although dark matter emits no visible light, we have detected it with radio telescopes. C) We can see the dark matter as dark blotches in the sky, such as the dark lanes that are visible within the Milky Way in the night sky. D) The orbital speeds of stars and gas clouds far from the galactic center are surprisingly high, suggesting that these stars and gas clouds are feeling gravitational effects from unseen matter.
If the material that formed the Moon was debris from a collision between the early Earth and another body, what can we predict about the composition of moon rocks collected by Apollo astronauts?
A. Moon rocks should have some similar and some different compositional characteristics. B. Moon rocks should have the same composition as rocks found on and inside Earth. C. Moon rocks should have a composition that is the same as Earth's crust. D. Moon rocks should have a completely different composition than rocks found on Earth.
Which of the following measurements of other solar systems would require us to change our current solar system formation theory?
A) The age of another solar system is significantly older than our solar system. B) The planets in other solar systems mostly orbit their central stars in the same plane and same direction as the other planets in that solar system. C) Some stars have no planets. D) Some stars have many planets. E) Many other stars have planets orbiting in many different directions and at many different angles.