« previous next »

Author Question: Which object has the most kinetic energy? A) a 4-ton truck moving 50 km/hr B) a 3-ton truck ... (Read 170 times)

nevelica

  • Hero Member
  • *****
  • Posts: 563
on: Jul 27, 2018
Which object has the most kinetic energy?
 
  A) a 4-ton truck moving 50 km/hr
  B) a 3-ton truck moving 70 km/hr
  C) a 2-ton truck moving 90 km/hr
  D) a 1-ton truck moving 110 km/hr
  E) A, B, C, and D all have the same kinetic energy.

Question 2

Einstein's theory of relativity tells us that travelers who make a high-speed trip to a distant star and back will
 
  A) age more than people who stay behind on Earth.
  B) have more fun than people who stay behind on Earth.
  C) age less than people who stay behind on Earth.
  D) never be able to make the trip within their lifetimes.


Liddy

  • Sr. Member
  • ****
  • Posts: 342
Reply #1 on: Jul 27, 2018
Answer to Question 1

C

Answer to Question 2

C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

More than 4.4billion prescriptions were dispensed within the United States in 2016.

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Did you know?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

Sources of Energy in the United States Sources of Energy in the United States
energy of interaction and distance of particle energy of interaction and distance of particle
Moving currents are affected by Earth’s rotation Moving currents are affected by Earth’s rotation
Generating Energy from Glucose When your body needs to break down glucose Generating Energy from Glucose When your body needs to break down glucose
Humans take in energy by eating food Humans take in energy by eating food
Potential energy Potential energy
Video: TRH/TSH/Thyroid hormone

For a complete list of videos, visit our video library