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

Author Question: After an elastic collision of two balls, the kinetic energies of the two balls are measured to be ... (Read 19 times)

schs14

  • Hero Member
  • *****
  • Posts: 569
on: Jul 28, 2018
After an elastic collision of two balls, the kinetic energies of the two balls are measured to be 12J and 24J. What can be said about the kinetic energy of the two balls before the collision?
 a. nothingnot enough information is given
  b. the balls had the same energies, 12J and 24J respectively
  c. the total kinetic energy of the two balls was 36J
  d. none of the above

Question 2

A person runs up a long flight of stairs in 10 seconds. If the person's weight is 600 N and the vertical height of the stairs is 20 meters, the person's power output is
 a. 0
  b. 3 W
  c. 30 W
  d. 1,200 W
  e. 12,000 W


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Juro

  • Sr. Member
  • ****
  • Posts: 337
Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

D


schs14

  • Member
  • Posts: 569
Reply 2 on: Jul 28, 2018
Gracias!

meganmoser117

  • Member
  • Posts: 303
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Though “Krazy Glue” or “Super Glue” has the ability to seal small wounds, it is not recommended for this purpose since it contains many substances that should not enter the body through the skin, and may be harmful.

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

Did you know?

Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.

Did you know?

Excessive alcohol use costs the country approximately $235 billion every year.

Did you know?

The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.

Steady-state kinetic analysis of bisubstrate reactions Steady-state kinetic analysis of bisubstrate reactions
Pre–steady state kinetic evidence for an acyl-enzyme intermediate Pre–steady state kinetic evidence for an acyl-enzyme intermediate
Relative energies of covalent bonds and noncovalent interactions Relative energies of covalent bonds and noncovalent interactions
The dimensions of a typical bolt showing where sizes are measured. The dimensions of a typical bolt showing where sizes are measured.
A complete kinetic scheme for a single nucleotide addition A complete kinetic scheme for a single nucleotide addition
Elastic Rebound Elastic Rebound
Video: Isovolumetric VC, Ventricular ejection, Isovolumetric & Passive ventricular filling

For a complete list of videos, visit our video library