« previous next »

Author Question: The paths of fragments of fireworks are A) normally straight lines. B) parabolas. C) different ... (Read 47 times)

mspears3

  • Hero Member
  • *****
  • Posts: 586
on: Jul 29, 2018
The paths of fragments of fireworks are
 
  A) normally straight lines.
  B) parabolas.
  C) different from the paths of projectiles.

Question 2

A ball player wishes to determine pitching speed by throwing a ball horizontally from an elevation 5 m above ground level. The ball lands 20 m downrange. The player's pitching speed is about
 
  A) 5 m/s.
  B) 10 m/s.
  C) 20 m/s.
  D) 25 m/s.
  E) none of the above


atrochim

  • Sr. Member
  • ****
  • Posts: 331
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: B

Answer to Question 2

Answer: C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

Did you know?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

Did you know?

Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

Did you know?

Every flu season is different, and even healthy people can get extremely sick from the flu, as well as spread it to others. The flu season can begin as early as October and last as late as May. Every person over six months of age should get an annual flu vaccine. The vaccine cannot cause you to get influenza, but in some seasons, may not be completely able to prevent you from acquiring influenza due to changes in causative viruses. The viruses in the flu shot are killed—there is no way they can give you the flu. Minor side effects include soreness, redness, or swelling where the shot was given. It is possible to develop a slight fever, and body aches, but these are simply signs that the body is responding to the vaccine and making itself ready to fight off the influenza virus should you come in contact with it.

A typical spectrum with peaks representing the peptide fragments generated from a sample A typical spectrum with peaks representing the peptide fragments generated from a sample
Paths of Mars Paths of Mars
Risk of death from motorcycle accidents (dashed lines) and passenger accidents (solid lines) per 100 Risk of death from motorcycle accidents (dashed lines) and passenger accidents (solid lines) per 100
Cai Guo-Qiang, Footprints of History: Fireworks Project for the Opening Ceremony of the 2008 Beijing ... Cai Guo-Qiang, Footprints of History: Fireworks Project for the Opening Ceremony of the 2008 Beijing ...
A flat-tip (straight-blade) screwdriver. The width of the blade should match the width of the slot ... A flat-tip (straight-blade) screwdriver. The width of the blade should match the width of the slot ...
Two stubby screwdrivers used to access screws that have limited space above. A straight blade is on ... Two stubby screwdrivers used to access screws that have limited space above. A straight blade is on ...
Video: Nucleic acid digestion -small intestine

For a complete list of videos, visit our video library