« previous next »

Author Question: Joe and Bill throw identical balls vertically upward. Joe throws his ball with an initial speed ... (Read 102 times)

sdfghj

  • Hero Member
  • *****
  • Posts: 552
on: Jul 29, 2018
Joe and Bill throw identical balls vertically upward. Joe throws his ball with an initial speed twice as high as Bill. If there is no air resistance, the maximum height of Joe's ball will be
 
  A) four times that of Bill's ball.
  B) two times that of Bill's ball.
  C) equal to that of Bill's ball.
  D) eight times that of Bill's ball.
  E) roughly 1.4 times that of Bill's ball.

Question 2

Monochromatic light is incident on a metal surface and electrons are ejected. If the intensity of the light is increased, what will happen to the ejection rate and maximum energy of the electrons?
 
  A) Greater rate; same maximum energy.
  B) Same rate; greater maximum energy.
  C) Greater rate; greater maximum energy.
  D) Same rate; same maximum energy.


leahchrapun

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

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?

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?

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

Did you know?

Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

Did you know?

In 1885, the Lloyd Manufacturing Company of Albany, New York, promoted and sold "Cocaine Toothache Drops" at 15 cents per bottle! In 1914, the Harrison Narcotic Act brought the sale and distribution of this drug under federal control.

Acromegaly in one individual from a pair of identical twins. Acromegaly in one individual from a pair of identical twins.
Bill Viola, The Greeting. Bill Viola, The Greeting.
Place the tennis balls in a sock on the floor behind you, then lie with the middle of your thoracic ... Place the tennis balls in a sock on the floor behind you, then lie with the middle of your thoracic ...
How to vertically shift a quadratic function along the y-axis How to vertically shift a quadratic function along the y-axis
The graph of y = sqrt(x) is vertically stretched by a factor The graph of y = sqrt(x) is vertically stretched by a factor
At what speed does Grogzetti need to take the curve to avoid sliding? At what speed does Grogzetti need to take the curve to avoid sliding?
Video: Hip Animation

For a complete list of videos, visit our video library