A wave on a lake is found to have a wavelength of 2 m and a frequency of 0.3 Hz. What is the speed of this wave?
What will be an ideal response?
0.6 m/s
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A difference between electric and gravitational forces is that electric forces include
A) separation distance. B) repulsive interactions. C) the inverse-square law. D) infinite range. E) none of the above
State Newton's three laws of motion
What will be an ideal response?
The apparent amount of time it takes for Earth to complete a rotation on its axis is called a
a. meridian day. b. 24-hour day. c. sidereal day. d. mean solar day. e. solar day.
If all potatoes are selling at the same price per kilogram, a housewife who plans to peel the potatoes would get more potato for her money if she bought
1) small potatoes. 2) medium potatoes. 3) large potatoes. 4) no difference. This is because she 5) would get more potatoes per kilogram. 6) would get less potatoes per kilogram. 7) would get less peelings because of less surface area per pound. 8) buys weight, so any size per kilogram gives the same mass of potatoes.