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A boy in a moving bus at +6 m/s observes a car moving at -3 m/s. What is the actual velocity of the car with respect to the bus?
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Question: You release a fritionless cart at the top of each of the 2 ramps. Both carts are released from rest. The ramps have the same height as each other at the starting and finishing points. One has a small bump up th ...
Question: The planet Mercury's surface temperature varies from 700 K during the day to 90 K at night. Part 1: What is the temperature in °C during the day? Part 2: What is the temperature in °C at night? Part 3: What is ...
Question: A somewhat idealized graph of the speed of the blood in the ascending aorta during one beat of the heart appears as in the figure Part A: Approximately how far, in cm, does the blood move during one beat? Part ...
Question: A resistor with resistance R and a capacitor with capacitance C are connected in series to an AC voltage source. The time-dependent voltage across the capacitor is given by VC(t)=VC0 sin t.If R = 3k, C=100pF, V ...
Question: A slide projector needs to create a 84 cm high image of a 2.0 cm tall slide. The screen is 240 cm from the slide. Assume that it is a thin lens. (a) What focal length does the lens need? cm (b) How far should y ...
Question: A soap bubble is essentially a thin film of water surrounded by air. The colors you see in soap bubbles are produced by interference. What visible wavelengths of light are strongly reflected from a 390 nm -thic ...
Question: If a proton moved from a location with a 5.0V potential to a location with 7.5V potentia, would its potential energy increase or decrease? If an electron moved from a location with 7.5V potential to a location ...
Question: An object is 40 cm in front of a concave mirror with focal length of 20 cm. what is the postition of the image using ray tracing? The response must be typed, single spaced, must be in times new roman font (size ...
Quesiton: You stand at the top of a deep well. To determine the depth (D) of the well you drop a rock from the top of the well and listen for the splash as the water hits the water†TM s surface. The splash arrives t = ...
Question: A textbook of mass 2.09kg rests on a frictionless, horizontal surface. A cord attached to the book passes over a pulley whose diameter is 0.120m , to a hanging book with mass 2.96kg . The system is released fro ...
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