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

Author Question: A 50-kg box is being pushed along a horizontal surface. The coefficient of static friction between ... (Read 62 times)

tatyanajohnson

  • Hero Member
  • *****
  • Posts: 569
on: Jul 29, 2018
A 50-kg box is being pushed along a horizontal surface. The coefficient of static friction between the box and the ground is 0.65, and the coefficient of kinetic friction is 0.35.
 
  What horizontal force must be exerted on the box for it to accelerate at 1.2 m/s2?
  A) 230 N B) 60 N C) 120 N D) 170 N E) 490 N

Question 2

The average molecular kinetic energy of a gas can be determined by knowing
 
  A) only the number of molecules in the gas.
  B) only the volume of the gas.
  C) only the pressure of the gas.
  D) only the temperature of the gas.
  E) All of the above quantities must be known to determine the average molecular kinetic energy.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

lindahyatt42

  • Sr. Member
  • ****
  • Posts: 322
Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

D


tatyanajohnson

  • Member
  • Posts: 569
Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)

Dinolord

  • Member
  • Posts: 313
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

Did you know?

There are 60,000 miles of blood vessels in every adult human.

Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

Did you know?

In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

Did you know?

In 1885, the Lloyd Manufacturing Company of Albany, New York, promoted and sold "Cocaine Toothache Drops" at 15 cents per bottle! In 1914, the Harrison Narcotic Act brought the sale and distribution of this drug under federal control.

Surface Features on Titan Surface Features on Titan
Horizontal Drilling Horizontal Drilling
Use your thumbs to apply circular friction over the wrist bones, with recipient’s palm down. Use your thumbs to apply circular friction over the wrist bones, with recipient’s palm down.
Deep friction around the hip joint using the knuckles. Use the knuckle of the middle finger to apply ... Deep friction around the hip joint using the knuckles. Use the knuckle of the middle finger to apply ...
Press into points along the neck with your thumb, one side at a time. Apply circular friction to ... Press into points along the neck with your thumb, one side at a time. Apply circular friction to ...
Micrograph of toothbrush bristles scrubbing plaque on a tooth surface. Micrograph of toothbrush bristles scrubbing plaque on a tooth surface.
Video: Steps of glucose catabolism

For a complete list of videos, visit our video library