All three types of particles found in atoms are electrically charged
Indicate whether the statement is true or false
F
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What is the Kuiper belt?
A) a region of the solar system that extends almost a fourth of the way to the nearest stars and contains a trillion comets with orbits going in all directions around the Sun B) a technical name for the asteroid belt C) the most prominent ring of Saturn that is visible in photographs D) a region of the solar system beginning just beyond the orbit of Neptune that contains many icy bodies, including Pluto
Which of the following statements best describes the two principle advantages of telescopes over eyes?
A) Telescopes can collect far more light with far greater magnification. B) Telescopes have much more magnification and better angular resolution. C) Telescopes collect more light and are unaffected by twinkling. D) Telescopes can collect far more light with far better angular resolution.
An object of mass 8.0 kg is attached to an ideal massless spring and allowed to hang in the Earth's gravitational field
The spring stretches 3.6 cm before it reaches its equilibrium position. If this system is allowed to oscillate, what will be its frequency? A) 2.6 Hz B) 0.0045 Hz C) 0.67 Hz D) 2.1 Hz
A 1200-kg car is supported equally by the four tires, which are inflated to the same gauge pressure. What gauge pressure is required so the area of contact of each tire with the road is 100 cm2?
A) 12 × 105 Pa B) 12 × 104 Pa C) 2.9 × 105 Pa D) 2.9 × 104 Pa