The hammer throw is a track-and-field event in which a 7.30-kg ball (the hammer) is whirled around in a circle several times and released. it then moves upward on the familiar curved path of projectile motion and eventually returns to the ground some distance away. the world record for the horizontal distance is 86.75 m, achieved in 1986 by yuriy sedykh. ignore air resistance and the fact that the ball was released above the ground rather than at ground level. furthermore, assume that the ball is whirled around a circle that has a radius of 1.68 m and that its velocity at the instant of release is directed 33.9 ° above the horizontal. find the magnitude of the centripetal force acting on the ball just prior to the moment of release.
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Physics, 21.06.2019 18:00
What happens to the velocity of the car when the upward pull of the cable is greater than the downward pull of gravity as the car rises toward the top?
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Physics, 22.06.2019 05:50
Give your knowledge of these things in your paper, you will compare and contrast analog and digital signals to determine which is more reliable for encoding and transmitting information. you’ll compare these features: signal shape numerical values for signal measurements amount of data that can be transmitted energy requirements privacy and security (ability of the signal to be encoded in a secret code) clarity of signal in the space provided, write down what you already know about any of these features. if you’re not sure, write down questions you might have about the features.
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Physics, 22.06.2019 12:00
You have a resistor and a capacitor of unknown values. first, you charge the capacitor and discharge it through the resistor. by monitoring the capacitor voltage on an oscilloscope, you see that the voltage decays to half its initial value in 2.70 miss . you then use the resistor and capacitor to make a low-pass filter. what is the crossover frequency fc?
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Physics, 22.06.2019 12:30
Urgent pls a. coal consumption levels off and remains flat. b. petroleum, natural gas, and renewables show an increase in consumption c. more nonrenewable resources continued to be consumed than renewable. d. there is little projected increase in nuclear energy use. e. carbon dioxide emissions are projected to decline as we approach 2040. global energy consumption is defined as the total energy used by an individual or organizations from around the world. use the graph above to analyze the projected energy consumption from now until 2040. which statements in the prompt apply? a) a, b, d b) b, c, d c) a, c, d d) a, b, c, d
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The hammer throw is a track-and-field event in which a 7.30-kg ball (the hammer) is whirled around i...
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