A car moving at a steady 10 m/s on a level highway encounters a depression that has a circular cross-section with a radius of 30 m. The car maintains its speed as it drives through the depression
What is the normal force exerted by the seat of the car on a 60.0-kg passenger when the car is at the bottom of the depression? A) 200 N
B) 390 N
C) 790 N
D) 490 N
E) 590 N
C
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The image of x-ray emission uses different colors to represent different levels of brightness. The dark blue color represents the least bright x-ray emission. Which color represents the brightest x-ray emission?
What will be an ideal response?
In order for the dynamo effect to generate a magnetic field, Earth's outer core must be rapidly spinning, molten, and made of ________
Fill in the blank(s) with correct word
Stars support their weight by generating ____
a. magnetic fields throughout the star b. magnetic fields throughout the star c. energy in their centers d. magnetic-plasmas at their core e. energy-plasmas at their core
Which one of the following statements is true concerning resistors connected in parallel within an electric circuit?
a) The potential difference across each of the resistors is the same. b) The current through each of the resistors is the same. c) The energy dissipated by each of the resistors is the same. d) The resistance of each of the resistors is the same. e) The resistivity of each of the resistors is the same.