Author Question: You throw a ball straight up. As the ball is going up, the direction of the velocity and ... (Read 77 times)

savannahhooper

  • Hero Member
  • *****
  • Posts: 576
You throw a ball straight up. As the ball is going up, the direction of the velocity and acceleration point __________.
 Fill in the blank(s) with correct word

Question 2

Why does the nuclear force have a short range?
 a. Because the exchanged particles have nonzero mass, and thus limited time before they can complete the exchange.
  b. Because the low mass of the exchange particles means their exchange is effective only over short distances.
  c. Because the exchange particles have zero mass and thus limited time before they can complete the exchange.
  d. Because the exchanged particles must travel long distances to complete the exchange.
  e. Because it is the weakest of the four forces.



dellikani2015

  • Sr. Member
  • ****
  • Posts: 332
Answer to Question 1

opposite to each other

Answer to Question 2

a



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

dellikani2015

  • Sr. Member
  • ****
  • Posts: 332

 

Did you know?

Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

For a complete list of videos, visit our video library