This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: The acceleration of a ball as it rolls down a ramp is 3 m/s2 . It starts from rest. (a) What is the ... (Read 145 times)

jake

  • Hero Member
  • *****
  • Posts: 538
on: Jul 28, 2018
The acceleration of a ball as it rolls down a ramp is 3 m/s2 . It starts from rest. (a) What is the ball's speed after 4 seconds? (b) How far does the ball travel during the 4 seconds?

Question 2

How would a compass needle align itself in the magnetic field shown in this figure?
 a. It would align itself along the magnetic field lines circling the wire, with the north pole of the compass pointing clockwise.
  b. It would align itself along the magnetic field lines circling the wire, with the north pole of the compass pointing counterclockwise.
  c. The compass needle aligns perpendicular to the magnetic field with its north pole pointing directly at the wire.
  d. The compass needle aligns perpendicular to the magnetic field with its north pole pointing directly away from the wire.
  e. The direction the compass tends to point is up out of the page, but it cannot rotate that way, and it therefore does not respond to the magnetic field.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

zoeyesther

  • Sr. Member
  • ****
  • Posts: 315
Reply #1 on: Jul 28, 2018
Answer to Question 1

12 m/s, 24 m

Answer to Question 2

a


jake

  • Hero Member
  • *****
  • Posts: 538
Reply #2 on: Jul 28, 2018
TY


zoeyesther

  • Sr. Member
  • ****
  • Posts: 315
Reply #3 on: Jul 28, 2018
You're welcome


« previous next »
 

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?

Your heart beats over 36 million times a year.

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Did you know?

In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

Bone fractures that occur before death show signs of healing. The process of fracture healing starts Bone fractures that occur before death show signs of healing. The process of fracture healing starts
Sam Houston—and his horse—earned this heroic tribute. At the Battle of San Jacinto, a musket ball sh Sam Houston—and his horse—earned this heroic tribute. At the Battle of San Jacinto, a musket ball sh
Aspergillosis fungal ball in the right lung. Aspergillosis fungal ball in the right lung.
Inside ankle press. Place the heel of your left hand on the ball of the recipient’s right foot, ... Inside ankle press. Place the heel of your left hand on the ball of the recipient’s right foot, ...
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 ...
Ball-and-stick models of A=T and G≡C base pairs Ball-and-stick models of A=T and G≡C base pairs
Video: Brief Summary on Photosynthesis - Animation

For a complete list of videos, visit our video library