Author Question: When a ball falls downward, it may have a net force A) equal to its weight. B) of zero. C) ... (Read 47 times)

melly21297

  • Hero Member
  • *****
  • Posts: 565
When a ball falls downward, it may have a net force
 
  A) equal to its weight.
  B) of zero.
  C) equal to its weight minus air drag.
  D) any of the above
  E) none of the above

Question 2

When a tennis racquet hits a ball,
 
  A) the racquet loses as much speed as the ball gains.
  B) the ball is set in motion with the same speed of the racquet upon contact.
  C) the ball hits the racquet.
  D) all of the above



Cnarkel

  • Sr. Member
  • ****
  • Posts: 339
Answer to Question 1

Answer: D

Answer to Question 2

Answer: C



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Did you know?

Patients should never assume they are being given the appropriate drugs. They should make sure they know which drugs are being prescribed, and always double-check that the drugs received match the prescription.

Did you know?

The longest a person has survived after a heart transplant is 24 years.

Did you know?

Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

Did you know?

Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).

For a complete list of videos, visit our video library