If the north celestial pole appears on your horizon, what is your latitude?
a. 90° N
b. 90° S
c. 0°
d. 45° N
e. The latitude of the observer cannot be determined from the information given.
c
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Propene and cyclopropane are
a. the same compound. b. isomers. c. neither isomers nor the same compound.
The water level in identical bowls, A and B, is exactly the same. A contains only water; B contains floating ice as well as water. When we weigh the bowls, we find that
a. WA < WB. b. WA = WB. c. WA > WB. d. WB > WA if the volume of the ice cubes is greater than 1/9 the volume of the water. e. WB > WA if the volume of the ice cubes is greater than 9 times the volume of the water.
A 8-kg object moves up vertically a distance of 3 m. Its potential energy has changed by approximately how much?
a. It has increased by 24 J. b. It has decreased by 240 J. c. It has decreased by 24 J. d. It has increased by 240 J.
Using Equation 3.1, calculate the period of your pendulum for a length of 160 cm or for the maximum length you used. How does this compare with your experimental value? Calculate the percent error. Use the calculated value of the period as the standard value