A car travels in an oval path as shown below

image = 25 m/s, West, and image = 20 m/s, North. The ratio of the magnitude of the centripetal acceleration at B to that at A, image is:
?
image
 
a.
0.512
 
b.
0.64
 
c.
0.8
 
d.
1.25
 
e.
1.56


a

Physics & Space Science

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A light bulb used in a slide projector draws a current of 6 amperes when operating on 120 volts.If two slide projectors are connected in parallel across the same 120-volt source, the current drawn from the source in amperes is

a. 3. b. 6. c. 9. d. 12. e. none of the above.

Physics & Space Science

Is it ever possible for the following process to occur?

? ? (e+) + (e-) + (e+) A) Yes, it is. B) No, this process does not conserve energy. C) No, this process does not conserve momentum. D) No, this process does not conserve mass. E) No, this process does not conserve electric charge.

Physics & Space Science

Consider the following statement: "Rocky asteroids are found primarily in the asteroid belt and Kuiper belt while icy comets are found primarily in the Oort cloud." What's wrong with this statement?

A) Asteroids are not made of rock. B) Comets are not icy. C) The Kuiper belt contains icy comets, not rocky asteroids. D) The Oort cloud has nothing to do with comets. E) The statement is accurate as written.

Physics & Space Science

Which of the following is a valid spin state q-vector? (If you are using the letters on the back cover, you can indicate more than one choice by pointing to several letters.)

A.
B.
C.
D.
E. None of the above
F. All of the above


Physics & Space Science