« previous next »

Author Question: The force of gravity on a bowling ball rolling along a horizontal surface doesn't change its speed ... (Read 98 times)

imanialler

  • Hero Member
  • *****
  • Posts: 539
on: Jul 29, 2018
The force of gravity on a bowling ball rolling along a horizontal surface doesn't change its speed because the force is
 
  A) small compared to the ball's weight.
  B) canceled by the normal force.
  C) perpendicular to its direction of motion.
  D) canceled by friction.

Question 2

What holds Earth satellites up so they don't crash into Earth?
 
  A) gravity
  B) centripetal force
  C) centrifugal force
  D) the absence of air resistance
  E) nothing, they continually fall fast enough around Earth not to crash


mjenn52

  • Sr. Member
  • ****
  • Posts: 351
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: C

Answer to Question 2

Answer: E


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

Did you know?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

Did you know?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

Did you know?

Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.

Did you know?

The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.

Surface Features on Titan Surface Features on Titan
Change in plasma metabolomics following glucose igestion Change in plasma metabolomics following glucose igestion
Study Force Courses Study Force Courses
A forklift pushes a 100-kg crate, starting from rest, exerting a horizontal force of magnitude ... A forklift pushes a 100-kg crate, starting from rest, exerting a horizontal force of magnitude ...
A soccer ball is released from rest at the top of a grassy incline. After 8.6 seconds, the ball ... A soccer ball is released from rest at the top of a grassy incline. After 8.6 seconds, the ball ...
Video: Transcription—A molecular view

For a complete list of videos, visit our video library