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 83 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?

Automated pill dispensing systems have alarms to alert patients when the correct dosing time has arrived. Most systems work with many varieties of medications, so patients who are taking a variety of drugs can still be in control of their dose regimen.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Did you know?

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

Did you know?

Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.

fusion for energy fusion for energy
The energy cycle of life The energy cycle of life
Pyramids of energy, biomass, and numbers Pyramids of energy, biomass, and numbers
Mixing alcohol with caffeinated energy drinks can have dangerous consequences Mixing alcohol with caffeinated energy drinks can have dangerous consequences
What is the mass % of H2S04 in concentrated sulfuric acid? What is the mass % of H2S04 in concentrated sulfuric acid?
Half-life explained Half-life explained
Video: Bipolar Disorder

For a complete list of videos, visit our video library