(Answered) 1 calculate the electrostatic force between a -830 muc

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1. Calculate the electrostatic force between a -830 μC charge and a -62 μC charge that are 83 mm apart.

2. An EM wave traveling through a vacuum has a frequency of 5.89×10¹⁴ Hz. Determine the WAVELENGTH of the wave. Remember, the speed of light is 3×10⁸ m/s.

3. An object is held 33.2 cm away from a mirror. The mirror has a focal length of -23 cm. determine the image distance, magnification, and if the object is 7.8 cm long, determine the image height.

4. You are standing on a canyon edge and you give a shout. After 4.5 s have passed, you hear your echo. The temperature at the canyon is 3.5 °C. Determine the speed of sound. and Determine how far away the cliff wall is that your voice bounced off of.

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