« previous next »

Author Question: An automobile travels due north with a speed of 77 km/h that is decreasing. All forces considered, ... (Read 184 times)

oliviahorn72

  • Hero Member
  • *****
  • Posts: 579
on: Jul 28, 2018
An automobile travels due north with a speed of 77 km/h that is decreasing. All forces considered, the unbalanced force acting on the auto is
 a. zero.
  b. southward.
  c. northward.
  d. downward.
  e. upward.

Question 2

When the equation H2O + NO2  NO + HNO3 is balanced, the sum of all the coefficients (both written and understood) is ______________.
 Fill in the blank(s) with correct word


macybarnes

  • Sr. Member
  • ****
  • Posts: 312
Reply #1 on: Jul 28, 2018
Answer to Question 1

b

Answer to Question 2

7 (coefficients in order are 1, 3, 1, 2)


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

oliviahorn72

  • Hero Member
  • *****
  • Posts: 579
Reply #2 on: Jul 28, 2018
Both answers were spot on, thank you once again


macybarnes

  • Sr. Member
  • ****
  • Posts: 312
Reply #3 on: Jul 28, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

Did you know?

Approximately 500,000 babies are born each year in the United States to teenage mothers.

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?

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?

Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.

The hierarchy of forces governing protein structure. The hierarchy of forces governing protein structure.
Flexible cooling fan blades change shape as the engine speed changes. Flexible cooling fan blades change shape as the engine speed changes.
Weak valve springs will produce a normal reading at idle, but as engine speed increases, the needle ... Weak valve springs will produce a normal reading at idle, but as engine speed increases, the needle ...
Weather Characteristics of North American Air Masses Weather Characteristics of North American Air Masses
Speed of Convergence to the Steady State Speed of Convergence to the Steady State
A pool player is attempting a fancy shot. He hits the cue ball giving it a speed of 5.57 m/s ... A pool player is attempting a fancy shot. He hits the cue ball giving it a speed of 5.57 m/s ...
Video: Introduction to Spirometry

For a complete list of videos, visit our video library