« previous next »

Author Question: Joe and Bill throw identical balls vertically upward. Joe throws his ball with an initial speed ... (Read 77 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?

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?

Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

Did you know?

To maintain good kidney function, you should drink at least 3 quarts of water daily. Water dilutes urine and helps prevent concentrations of salts and minerals that can lead to kidney stone formation. Chronic dehydration is a major contributor to the development of kidney stones.

Did you know?

Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

Scaling the Earth down to the size of a basketball, the Moon is roughly the size of a tennis ball. T Scaling the Earth down to the size of a basketball, the Moon is roughly the size of a tennis ball. T
Bill Viola, Room for St. John of the Cross. Bill Viola, Room for St. John of the Cross.
Mobilize neck in wavelike motion. Return the head to a neutral position facing upward. Apply ... Mobilize neck in wavelike motion. Return the head to a neutral position facing upward. Apply ...
The graph of y = sqrt(x) is vertically stretched by a factor The graph of y = sqrt(x) is vertically stretched by a factor
Blood vessels associated with the nephron. The glomerulusis a ball of capillaries that have unusuall Blood vessels associated with the nephron. The glomerulusis a ball of capillaries that have unusuall
The orange ball is a model of an HPV16 virus The orange ball is a model of an HPV16 virus
Video: Types of synapses - electrical & chemical

For a complete list of videos, visit our video library