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What color would an object that reflects green and blue light appear to be in white light? a. blue b. cyan c. magenta d. black
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Name three different units of energy used to measure heat and describe what type of situations each is usually used.
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Awater balloon launcher uses an elastic band with a spring constant of 115 n/m to use thee launcher you stretch thee band back with a balloon n it the water balloons have a mass of 1.3 kg a) if you stretch the band by 0.8 m, what elastic force will the band exert? b) with the band stretched 0.8 m, how much elastic potential energy is stored in the spring? c) if you release the band, it pushes forward. what is the kinetic energy of the balloon when it reaches the natural length of the band? d) what is the speed of the balloon when it reaches the natural length of the band?
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A car accelerates at a rate of 2.0 m/s2. If its original speed is 8.0 m/s, how many seconds will it...
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