This topic contains a solution. Click here to go to the answer

Author Question: A 5.0-kg box slides on the surface on a ramp that rises at 37 above the horizontal. The coefficient ... (Read 116 times)

nenivikky

  • Hero Member
  • *****
  • Posts: 516
A 5.0-kg box slides on the surface on a ramp that rises at 37 above the horizontal. The coefficient of kinetic friction between the box and the surface of the ramp is 0.60.
 
  What are the magnitude and direction of the acceleration of the box if it is sliding (a) up the ramp, (b) down the ramp?

Question 2

At 10 cents per kilowatt-hour, how much does it cost to run a 100 watt lightbulb for 200 hours every month?
 
  A) 20 cents per month
  B) 20 per month
  C) 2 per month
  D) impossible to determine because we don't know the voltage
  E) impossible to determine because we don't know the power



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

bubulittle310@msn.cn

  • Sr. Member
  • ****
  • Posts: 281
Answer to Question 1

(a) 11 m/s2 down the ramp (b) 1.2 m/s2 down the ramp

Answer to Question 2

C




nenivikky

  • Member
  • Posts: 516
Reply 2 on: Jul 29, 2018
Wow, this really help


smrtceo

  • Member
  • Posts: 344
Reply 3 on: Yesterday
Great answer, keep it coming :)

 

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Did you know?

The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.

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?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

Did you know?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

For a complete list of videos, visit our video library