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Question: A cell phone sends and receives electromagnetic waves in the microwave frequency range. Explain the physics of how an oscillator creates these waves.
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What is the centripetal force which acts upon a 588 kg race car as it rounds a curve with a radius of curvature of 375 m at 60 m/s? please provide work to explain
Question: Storm clouds build up large negative charges, as described in the chapter. The charges dwell in charge centers, regions of concentrated charge. Suppose a cloud has -25 C in a 1.0-km-diameter spherical charge ce ...
Question: At what speed does a ball hit the ground if you toss a 120 g ball straight up to just touch the 12-m-high roof of the gymnasium if you release the ball 1.5 m above the ground? Solve this problem using energy. T ...
Question: A particle moving on the x-axis experiences a force given by Fx = qx 2 , where q is a constant. How much work is done on the particle as it moves from x=0 to x=d? Express your answer in terms of some or all of ...
Question: A small 100 g cart is moving at 1.20 m/s on a friction less track when it collides with a larger, 1.00 kg cart at rest. After the collision, the small cart recoils at 0.850 m/s. What is the speed of the large c ...
Question: Part A: What focal length does the lens need? Assume that it is a thin lens. Part B: How far should you place the lens from the slide? The response must be typed, single spaced, must be in times new roman font ...
Question: A simple pendulum oscillates with frequency f. a) what is its frequency if the entire pendulum accelerated 0.43 g upward? b) what is its frequency if the entire pendulum accelerates 0.43 g downwards? The respon ...
What are the equations and ratios used in Galileo's experiments, and what theory/principles are associated with his experiments that involve motion on a ramp at different inclines and distances for example?
Question: The radius of the earth's orbit around the sun (assumed to be circular) is 1.5*10^8 km , and the earth travels around this orbit in 365 days. a) What is the magnitude of the orbital velocity of the earth in m/s ...
Question: The position of a mass oscillating on a spring is given byx = (6.8 cm) cos[2t/(0.91 s)]. (a) What is the frequency of this motion? (b) When is the mass first at the position x =-6.8cm? The response must be type ...
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