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Hogar Banco de preguntas Física Archive 2025 January 22

Physics Questions from Jan 22,2025

Browse the Physics Q&A Archive for Jan 22,2025, featuring a collection of homework questions and answers from this day. Find detailed solutions to enhance your understanding.

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3. Set damping to 'lots' and make a new wave. What is different this time? How about when you set damping to 'none?' What causes damping? 4. Hit the yellow reset button at the bottom right. Try waves with tension at 'high' then at 'low' What role does tension play for waves along a medium? (This should make sense with the equation you have for string tension) 5. Swap to "oscillate" (top left). What affect does changing the amplitude have on the wave? How do you think amplitude relates to energy? Go to the University of Colorado Boulder website and select the "Wave on a Sfring" simulation (https://phet.colorado.edu/en/simulation/wave-on-a-string). You can activate it right in the window by clicking on it. You can also download to your computer if you wish. 1. Quickly raise and lower the pipe wrench. What happens to the string? 2. Make sure you made a big enough wave for it to reach the clamp. Does it reflect off the clamp? If so, what is different about the wave? At the instant , the top in Figure P1.1 has three components of angular motion directed as shown and having magnitudes defined as : , increasing at the rate of , increasing at the rate of , increasing at the rate of Determine the angular velocity and angular acceleration of the top. or a given circuit, , and . Find the equation relating the charge and the time if and when . Choose the correct equation below. A. B. C. D. 4. En un proceso de dispersión Compton, el fotón dispersado tiene una energía y el electrón de retroceso tiene una energía cinética . Encuentre: (1) la longitud de onda del fotón incidente, (2) el ángulo en el que se disperso el fotón y (3) el ángulo de retroceso del electrón. 5. Demuestre que la relación entre el ángulo del fotón dispersado y el ángulo del electrón de retroceso en el efecto Compton es about a vertical axis through the centre of the rule. Determine the time taken by the rule to complete 20 oscillations. Evaluate and Repeat the experiment for values of and 50 cm , keeping the strings vertical and of the same distance apart throughout. In each case, determine the corresponding values of t , T and . Tabulate your readings. Now set and determine the time taken to complete 20 oscillations. Evaluate . Plot a graph of against D and determine the slope of the graph. Use the values of and to evaluate: Where m is the mass of the metre rule. about a vertical axis through the centre of the rule. Determine the time taken by the rule to complete 20 oscillations. Evaluate and Repeat the experiment for values of and 50 cm , keeping the strings vertical and of the same distance apart throughout. In each case, determine the corresponding values of , and . Tabulate your readings. Now set and determine the time taken to complete 20 oscillations. Evaluate . Plot a graph of against D and determine the slope of the graph. Use the values of and to evaluate: Where is the mass of the metre rule. State two precautions you took to ensure accurate results. Bumper car moves east at . Bumper car moves east at . If the cars have an elastic collision, what would the velocity of car 1 be afterwards? A 53.4 kg ice skater is at rest when she throws a snowball east at . The skater recols west at . What is the mass of the snowball? (Unit ) Remember right is + Ieft is -
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