This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A rock falls from a vertical cliff that is 4.0 m tall and experiences no significant air resistance ... (Read 225 times)

lracut11

  • Hero Member
  • *****
  • Posts: 536
on: Jul 29, 2018
A rock falls from a vertical cliff that is 4.0 m tall and experiences no significant air resistance as it falls. At what speed will its gravitational potential energy (relative to the base of the cliff) be equal to its kinetic energy?
 
  A) 3.1 m/s
  B) 4.4 m/s
  C) 6.3 m/s
  D) 8.9 m/s
  E) 13 m/s

Question 2

As more resistors are added in series to a constant voltage source, the power supplied by the source
 
  A) increases.
  B) decreases.
  C) does not change.
  D) increases for a time and then starts to decrease.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

bulacsom

  • Sr. Member
  • ****
  • Posts: 329
Reply #1 on: Jul 29, 2018
Answer to Question 1

C

Answer to Question 2

B


lracut11

  • Member
  • Posts: 536
Reply 2 on: Jul 29, 2018
YES! Correct, THANKS for helping me on my review

jamesnevil303

  • Member
  • Posts: 337
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

Did you know?

More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

Did you know?

Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

Did you know?

According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Tall Ironweed Tall Ironweed
A downward-sloping spark line usually indicates high secondary ignition system resistance or an ... A downward-sloping spark line usually indicates high secondary ignition system resistance or an ...
Thermodynamic Diagrams and Vertical Temperature Profiles Thermodynamic Diagrams and Vertical Temperature Profiles
Cloud Types: Vertical Development Cloud Types: Vertical Development
Newborn Experiences Across Cultures Newborn Experiences Across Cultures
The monohybrid cross between tall and dwarf pea plants The monohybrid cross between tall and dwarf pea plants
Video: What are the Parts of a Plant Cell?

For a complete list of videos, visit our video library