Author Question: Two automobiles traveling at right angles to each other collide and stick together. Car A has a mass ... (Read 72 times)

burchfield96

  • Hero Member
  • *****
  • Posts: 610
Two automobiles traveling at right angles to each other collide and stick together. Car A has a mass of 1200 kg and had a speed of 25 m/s before the collision.
 
  Car B has a mass of 1600 kg. The skid marks show that, immediately after the collision, the wreckage was moving in a direction making an angle of 40 with the original direction of car A. What was the speed of car B before the collision?
  A)
 
  16 m/s
 
  B)
 
  18 m/s
 
  C)
 
  11 m/s
 
  D)
 
  21 m/s
 
  E)
 
  14 m/s

Question 2

How many different kinds of leptons are known to exist, including antiparticles as different kinds?
 
  A) 12 B) 4 C) 2 D) 8 E) 6



Toya9913

  • Sr. Member
  • ****
  • Posts: 341
Answer to Question 1

A

Answer to Question 2

A



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

Human kidneys will clean about 1 million gallons of blood in an average lifetime.

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Did you know?

The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

Did you know?

Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.

Did you know?

Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

For a complete list of videos, visit our video library