physical science

which of the following statements concerning air resitance is false?
a. skydiverscan influence their speed by changing thier body positioning
b. objects that fall together in a vaccum may fall at differnt speeds in air.
c. it is easier for a pitcher to throw a good curve ball on the moon.
d. a real projectile path is not symmetrical about the apex

  1. 👍
  2. 👎
  3. 👁

Respond to this Question

First Name

Your Response

Similar Questions

  1. P.E

    1. Air pollutants can do all of the following EXCEPT: A. damage the respiratory system. B. enter the bloodstream and harm other parts of the body. C. cause discoloration to your hair. D. reduce your protection from the sun's

  2. Physics

    Which of the following statements correctly describes the changes that occur in a sound wave, as it passes from cool air into warmer air? A) speed,wavelength and frequency all increase B) speed, wavelength increase; frequency

  3. Science Halp

    1 When the air under the envelope is heated, the balloon lifts. Which of the following statements is true. a. Hot air balloons use radiation to rise b. Hot air balloons use conduction to rise c. Hot air balloons use convection to

  4. Calculus (Urgent Help)

    Okay, I need major help! Can someone tell me if these statements are true or false ASAP please. Thank you. 1. If ƒ′(x) < 0 when x < c then ƒ(x) is decreasing when x < c. True 2. The function ƒ(x) = x^3 – 3x + 2 is

  1. science

    5. Which of the following causes clouds to form ? a) air cooling to its dew point b) water vapor condensing as it rises into cooler air c) air pressure rising above normal d) air pressure falling below normal 6. Which of these is

  2. Environmental Science

    1. Decibel is a measurement of the amount of pollution (True or False) 2. Non-Point-Source pollution can be traced to one specific source (True or False) 3. Point-Source pollution is pollution that comes from identifiable

  3. physics

    Two balls having different masses reach the same height when shot into the air from the ground. If there is no air drag, which of the following statements must be true? (More than one statement may be true.) A. Both balls left the

  4. math

    Application Giovanni is flying his Cessna airplane on a heading as shown. His instrument panel shows an air speed of 130 mi/h. (Air speed is the speed in still air without wind.) However, there is a 20 mi/h crosswind. What is the

  1. health part2

    The sole activity of the respiratory system is breathing. True False The exchange of gases between the blood and tissue cells is external respiration. True False Air flows in the process of pulmonary ventilation because of

  2. Science Plz help

    1. Acceleration involves a change in ____. speed velocity displacement direction 2. Which of the following statements about acceleration is true? Like velocity, acceleration has a direction. Your acceleration is positive when you

  3. Physics

    A hot-air balloon is accelerating upward under the influence of two forces, its weight and the buoyant force. For simplicity, consider the weight to be only that of the hot air within the balloon, thus ignoring the balloon fabric

  4. Accounting

    Internal control devices for banking activities include signature cards, deposit tickets, checks, and bank statements. 01.) True 02.) False True or False?

You can view more similar questions or ask a new question.