Jamal pulls a 150-N sled up a 28.0° slope at constant speed by a force of 120 N. Near the top of the hill he releases the sled. With what acceleration does the sled go down the hill?
a. 1.20 m/s2
c. 2.22 m/s2
b. 1.36 m/s2
d. 2.67 m/s2
B
Physics & Space Science
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"Canals" are a feature once associated with the planet ______________
Fill in the blank(s) with correct word
Physics & Space Science
Our Sun and the entire Solar System orbits the center of the Milky Way Galaxy. It is somewhat less than ___ from the center of the Milky Way.
a. 20,000 LY b. 30,000 LY c. 30,000 LY d. 40,000 LY e. None of the above.
Physics & Space Science
The "Isaac Newton of electromagnetism" was
A) Faraday. B) Maxwell. C) Schiglegrueber. D) Hertz. E) Einstein.
Physics & Space Science
Warm air rises and cool air sinks. So, when an air parcel rises it becomes
A) cooler. B) warmer. C) more stable. D) less stable.
Physics & Space Science