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

Author Question: A ball is thrown straight upward from ground level with a speed of How much time passes before the ... (Read 106 times)

geoffrey

  • Hero Member
  • *****
  • Posts: 880
on: Jul 29, 2018
A ball is thrown straight upward from ground level with a speed of How much time passes before the ball strikes the ground if we disregard air resistance?
 
  A) 3.7 s
  B) 1.8 s
  C) 1.1 s
  D) 0.6 s

Question 2

A sphere of surface area 1.25 m2 and emissivity 1.0 is at a temperature of 100C. At what rate does it radiate energy into empty space? ( = 5.67  10-8 W/m2  K4 )
 
  A) 7.1 W
  B) 0.71 mW
  C) 1.4 kW
  D) 9.9 mW
  E) 3.7 W


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jackie

  • Sr. Member
  • ****
  • Posts: 324
Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

C


geoffrey

  • Member
  • Posts: 880
Reply 2 on: Jul 29, 2018
Wow, this really help

jamesnevil303

  • Member
  • Posts: 337
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Did you know?

The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

Did you know?

For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Approximately 1 pound (0.45 kg) of ground elk meat formed into patties; note the relatively small fa Approximately 1 pound (0.45 kg) of ground elk meat formed into patties; note the relatively small fa
Great apes knuckle-walk when traveling on the ground. Great apes knuckle-walk when traveling on the ground.
Results from sequential study of two cohorts tested at three ages and at three different points in t Results from sequential study of two cohorts tested at three ages and at three different points in t
Keep the spine straight while sitting down. Keep the spine straight while sitting down.
Rising sea level threatens coastal communities around the world Rising sea level threatens coastal communities around the world
Disitive Time For Fruits Disitive Time For Fruits
Video: Steps of glucose catabolism

For a complete list of videos, visit our video library