A car travels in a flat circle of radius R. At a certain instant the velocity of the car is 24 m/s west, and the acceleration of the car has components of 2.4 m/s2 east and 1.8 m/s2 south. What is the radius of the circle?
a. 0.24 km
b. 0.19 km
c. 0.32 km
d. 0.14 km
e. 0.27 km
c
Physics & Space Science
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Bowl-shaped depression; the term comes from the Greek for bowl
A. Crater |
B. Stone meteorites |
C. Tektites |
D. Meteors |
E. Regmaglypts |
F. Meteor showers |
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Roughly how far across is the Milky Way?
A. 10 million light-years B. 25,000 light-years C. 25 light-years D. 100,000 light-years
Physics & Space Science
What are the standard units for luminosity?
A) Watts B) Newtons C) Joules D) kilograms E) Watts per second
Physics & Space Science
The hollow depression left when a shell or bone is dissolved completely out of a rock is called a(n)
a. groove. b. hole. c. cast. d. mold.
Physics & Space Science