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

Author Question: An object moving in the +x direction experiences an acceleration of +2.0 m/s2. This means the object ... (Read 156 times)

olgavictoria

  • Hero Member
  • *****
  • Posts: 528
An object moving in the +x direction experiences an acceleration of +2.0 m/s2. This means the object
 
  A) travels 2.0 m in every second.
  B) is traveling at 2.0 m/s.
  C) is decreasing its velocity by 2.0 m/s every second.
  D) is increasing its velocity by 2.0 m/s every second.

Question 2

A particle physicist observes cosmic rays creating a new particle high in the atmosphere, and the speed of this particle is measured at 99.7 the speed of light. It is unstable, and is observed to decay in an average 37.0 s.
 
  If this particle were at rest in the laboratory, what would be its average lifetime? A) 2.9 s
  B) 18 s
  C) 5.3 s
  D) 12 s
  E) 4.3 s



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

frejo

  • Sr. Member
  • ****
  • Posts: 349
Answer to Question 1

D

Answer to Question 2

A





 

Did you know?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

Always store hazardous household chemicals in their original containers out of reach of children. These include bleach, paint, strippers and products containing turpentine, garden chemicals, oven cleaners, fondue fuels, nail polish, and nail polish remover.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

For a complete list of videos, visit our video library