« previous next »

Author Question: A student travels from St. Louis to Indianapolis, a distance of 210 mi, in 6.0 h. The return trip ... (Read 140 times)

Evvie72

  • Hero Member
  • *****
  • Posts: 519
on: Jul 28, 2018
A student travels from St. Louis to Indianapolis, a distance of 210 mi, in 6.0 h. The return trip over the same route takes 7.0 h. What is the average speed for
 a. the first half of the trip?
  b. the second half of the trip?
  c. the total trip?

Question 2

In the activity series, Zn is more active than Pb. This means that
 a. Zn is a better catalyst than Pb.
  b. Zn loses its electrons more easily than Pb.
  c. Pb is more readily oxidized than Zn.
  d. none of these


babybsemail

  • Sr. Member
  • ****
  • Posts: 304
Reply #1 on: Jul 28, 2018
Answer to Question 1

a. 35 mi/h
b. 30 mi/h
c. 32 mi/h

Answer to Question 2

b


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

Evvie72

  • Hero Member
  • *****
  • Posts: 519
Reply #2 on: Jul 28, 2018
Thanks


babybsemail

  • Sr. Member
  • ****
  • Posts: 304
Reply #3 on: Jul 28, 2018
Welcome :)


« previous next »
 

Did you know?

All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Did you know?

Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

Did you know?

Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

Racial Shifts in St. Louis during the 1950s Racial Shifts in St. Louis during the 1950s
Jacques-Louis David, Napoleon Crossing the Saint-Bernard. Jacques-Louis David, Napoleon Crossing the Saint-Bernard.
Distance from Earth to Sun schematic Distance from Earth to Sun schematic
Sample time management planning chart for a massage student. Sample time management planning chart for a massage student.
A batter hits a home run in which the ball travels 110 m horizontally with no appreciable ... A batter hits a home run in which the ball travels 110 m horizontally with no appreciable ...
Kindergarten field trip Kindergarten field trip
Video: Fetal development - Weeks 9 to 38

For a complete list of videos, visit our video library