« previous next »

Author Question: A bar magnet is attached solidly to a frictionless surface and its length is aligned with the x ... (Read 32 times)

rmenurse

  • Hero Member
  • *****
  • Posts: 513
on: Jul 28, 2018
A bar magnet is attached solidly to a frictionless surface and its length is aligned with the x axis. To the right of the first magnet a short distance away is a second bar magnet with its center placed on the x axis and its length perpendicular to the x axis. The second magnet is free to move. Once placed in position at rest, which best describes the initial motion of the second magnet?
 a. The magnet will move away from the fixed magnet.
  b. The magnet will not move.
  c. The magnet will move toward the fixed magnet.
  d. The magnet will start to rotate.

Question 2

The bottom of a flatbottomed aluminum boat has an area of 4.0 m2, and the boat's mass is 120 kg. When set afloat in water, how far below the water surface is the boat bottom? (water density = 1.0  103 kg/m3)
 a. 0.060 m
  c. 0.030 m
  b. 0.015 m
  d. 0.075 m


verrinzo

  • Sr. Member
  • ****
  • Posts: 346
Reply #1 on: Jul 28, 2018
Answer to Question 1

D

Answer to Question 2

C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

Did you know?

A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.

Did you know?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

The Moon’s Interior and Its Effects on the Moon’s Surface The Moon’s Interior and Its Effects on the Moon’s Surface
A commercial eyewash station. In a medical office, the eyewash station is likely to be attached to a A commercial eyewash station. In a medical office, the eyewash station is likely to be attached to a
A magnetic sensor uses a permanent magnet surrounded by a coil of wire. The notches of the ... A magnetic sensor uses a permanent magnet surrounded by a coil of wire. The notches of the ...
Stripping is performed with deep pressure along the length of a muscle to its attachment. Parallel ... Stripping is performed with deep pressure along the length of a muscle to its attachment. Parallel ...
An athlete stretches a spring an extra 40.0 cm beyond its initial length. How much energy has ... An athlete stretches a spring an extra 40.0 cm beyond its initial length. How much energy has ...
Video: Corpus Callosum Animation

For a complete list of videos, visit our video library