The standard unit of force used by the scientific community is the newton (N). A newton is comprised of a
- kg m/s.
- kg m2/s2.
- kg m2/s.
- kg m/s2.
Correct answer is d.
Physics & Space Science
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The graphs below show angular velocity as a function of time. In which one is the magnitude of the angular acceleration constantly decreasing?
a.
b.
Why is infrared much better than visible light in studying star formation?
What will be an ideal response?
Physics & Space Science
Rutherford's experiments involving the use of alpha particle beams directed onto thin metal foils demonstrated the existence of which of the following?
a. neutron b. proton c. nucleus d. positron
Physics & Space Science
If a person in Alaska were locked out of his house on a day when the temperature outside was -40°C, his thick clothing would mostly reduce the loss of thermal energy by
a. conduction. b. convection. c. radiation. d. all of the above. e. convection and radiation.
Physics & Space Science