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Key Stage 3 Science - Physics
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Question 37 of 45
A wave has a wavelength of 10 m and a speed of 65 m/s. What is the frequency of this wave in Hz?
Hz
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The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

A1.5m wire carries a 2 a current when a potential difference of 52 v is applied. what is the resistance of the wire?

An electric power distributor charges residential customers $0.10 per kilowatt-hour (kwh). the company advertises that "green power" is available in 150 kwh blocks for an additional $4 per month. (green power is generated from solar, wind power, and methane sources.) if a certain customer uses an average of 391 kwh per month and commits to one monthly 150 kwh block of green power, what is her annual power bill