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

Author Question: Which of the following would be the best radiator of thermal energy? A) a shiny surface B) a ... (Read 112 times)

joesmith1212

  • Hero Member
  • *****
  • Posts: 549
on: Jul 27, 2018
Which of the following would be the best radiator of thermal energy?
 
  A) a shiny surface
  B) a perfectly white surface
  C) a perfectly black surface
  D) a metallic surface
  E) styrofoam

Question 2

A boy jumps at a speed of 20.0 m/s at an angle of 25.0 above the horizontal. What is the horizontal component of the boy's velocity?
 
  A) 18.1 m/s
  B) 15.6 m/s
  C) 8.5 m/s
  D) 12.6 m/s
  E) 20.0 m/s


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

JYan

  • Sr. Member
  • ****
  • Posts: 331
Reply #1 on: Jul 27, 2018
Answer to Question 1

C

Answer to Question 2

A


joesmith1212

  • Hero Member
  • *****
  • Posts: 549
Reply #2 on: Jul 27, 2018
Thanks


JYan

  • Sr. Member
  • ****
  • Posts: 331
Reply #3 on: Jul 27, 2018
Welcome :)


« previous next »
 

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

Did you know?

There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

Did you know?

Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.

Emphysema. (a) Illustration comparing normal lungs and emphysemic lungs. The inserts illustrate how Emphysema. (a) Illustration comparing normal lungs and emphysemic lungs. The inserts illustrate how
The surface of the human brain The surface of the human brain
Energy changes in reactions. Energy changes in reactions.
A) Thumb press across top of shoulder. (B) Repeated pressing to GB-21 to disperse energy; massage ... A) Thumb press across top of shoulder. (B) Repeated pressing to GB-21 to disperse energy; massage ...
The European Alps have lost ~30% to 40% of surface area and ~50% of volume since the 1850s. The European Alps have lost ~30% to 40% of surface area and ~50% of volume since the 1850s.
China has relied on cheap coal to meet its demand for energy China has relied on cheap coal to meet its demand for energy
Video: Introduction to Autism

For a complete list of videos, visit our video library