This topic contains a solution. Click here to go to the answer

Author Question: A projectile is fired from ground level on a horizontal plain. If the initial speed of the ... (Read 218 times)

tiffannnnyyyyyy

  • Hero Member
  • *****
  • Posts: 512
A projectile is fired from ground level on a horizontal plain. If the initial speed of the projectile is now doubled, and we neglect air resistance,
 
  A) its range will be increased by .
  B) its range will double.
  C) its range will be decreased by a factor of two.
  D) its range will quadruple.
  E) its range will decrease by a factor of four.

Question 2

When a sample of water at 0.0C is cooled to -36.0C and freezes in the process, 935,000 kJ of heat is liberated.
 
  What is the mass of this sample of water? For water LF = 334,000 J/kg, LV = 2.256  106 J/kg, and the specific heat of ice is 2050 J/kg  C.
  A) 2290 kg
  B) 1145 kg
  C) 2800 kg
  D) 12,700 kg



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Ksh22

  • Sr. Member
  • ****
  • Posts: 297
Answer to Question 1

D

Answer to Question 2

A



tiffannnnyyyyyy

  • Hero Member
  • *****
  • Posts: 512
Both answers were spot on, thank you once again



Ksh22

  • Sr. Member
  • ****
  • Posts: 297

 

Did you know?

The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

Did you know?

Medication errors are three times higher among children and infants than with adults.

Did you know?

One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

Did you know?

Approximately one in four people diagnosed with diabetes will develop foot problems. Of these, about one-third will require lower extremity amputation.

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

For a complete list of videos, visit our video library