Author Question: When a ball falls downward, it may have a net force A) equal to its weight. B) of zero. C) ... (Read 12 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?

Automated pill dispensing systems have alarms to alert patients when the correct dosing time has arrived. Most systems work with many varieties of medications, so patients who are taking a variety of drugs can still be in control of their dose regimen.

Did you know?

When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

Did you know?

The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

Did you know?

Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

Did you know?

Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.

For a complete list of videos, visit our video library