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 61 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
Thanks for the timely response, appreciate it

cici

  • Member
  • Posts: 325
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

Did you know?

Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

Did you know?

The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

Did you know?

Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

A simulated-color map of the surface of Venus as measured by synthetic aperture radar on the Magella A simulated-color map of the surface of Venus as measured by synthetic aperture radar on the Magella
Blood-typing and cross-reactions: The blood type depends on the presence of surface antigens (agglut Blood-typing and cross-reactions: The blood type depends on the presence of surface antigens (agglut
The Moon’s Interior and Its Effects on the Moon’s Surface The Moon’s Interior and Its Effects on the Moon’s Surface
Open palmar friction moving back and forth over the lumbar and thoracic regions. Open palmar friction moving back and forth over the lumbar and thoracic regions.
Observed change in surface temperature from 1901 to 2012 Observed change in surface temperature from 1901 to 2012
Increase in Surface Area by Mechanical Weathering Increase in Surface Area by Mechanical Weathering
Video: Mendel's Principles of Inheritance (Father of Genetics)

For a complete list of videos, visit our video library