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

Author Question: Which has greater kinetic energy: a car traveling at 30 km/h or another car of half the mass ... (Read 55 times)

james0929

  • Hero Member
  • *****
  • Posts: 586
on: Jul 29, 2018
Which has greater kinetic energy: a car traveling at 30 km/h or another car of half the mass traveling at 60 km/h?
 
  A) The 30-km/h car
  B) The 60-km/h car
  C) both have the same kinetic energy

Question 2

A car accelerates from 5.0 m/s to 21 m/s at a constant rate of 3.0 m/s2 How far does it travel while accelerating?
 
  A) 41 m B) 69 m C) 117 m D) 207 m


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

coreycathey

  • Sr. Member
  • ****
  • Posts: 333
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: B

Answer to Question 2

B


james0929

  • Hero Member
  • *****
  • Posts: 586
Reply #2 on: Jul 29, 2018
Both answers were spot on, thank you once again


coreycathey

  • Sr. Member
  • ****
  • Posts: 333
Reply #3 on: Jul 29, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.

Did you know?

The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

Did you know?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

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?

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.

How solar-energy power works How solar-energy power works
1-16 The Sun’s Daily Path and the Energy It Deposits Here 1-16 The Sun’s Daily Path and the Energy It Deposits Here
The Structure of an Old High-Mass Star The Structure of an Old High-Mass Star
Enterohepatic recirculation of a drug can increase its half-life in the body and prolong its ... Enterohepatic recirculation of a drug can increase its half-life in the body and prolong its ...
Pressure is a result of the atmosphere’s mass. Pressure is a result of the atmosphere’s mass.
Climate models the flow of mass and energy Climate models the flow of mass and energy
Video: Neuron structure and function - sensory neurons, association neurons & motor neurons

For a complete list of videos, visit our video library