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The writing on the passenger-side mirror of your car says "Warning! Objects in mirror are closer than they appear"(Figure 1) . There is no such warning on the driver's mirror. Consider a typical convex passenger-side mirror with a focal length of -80 cm. A 1.6-m-tall cyclist on a bicycle is 24m from the mirror. You are 1.4m from the mirror, and suppose, for simplicity, that the mirror, you, and the cyclist all lie along a line.
1. How far are you from the image of the cyclist?2. How far would you have been from the image if the mirror were flat?3. What is the image height?4. What would the image height have been if the mirror were flat?
A spacecraft is in orbit around a planet. The radius of the orbit is 2.9 times the radius of the planet (which is R = 71451 km), What is the period of the spacecraft's orbit
A 1.5 m long stick by a mass of 0.3 kg is pivoted on a hinge at one end and held horizontally by a spring with spring constant 10N/m attached at the other end. What is the frequency, f (in Hz), of small up and down oscillations of the stick?
What is the acceleration of a car that moves at a steady velocity of 100 km/h for 100 second? Explain your answer and state why this question is an exercise in careful reading as well as in physics.
A parallel-plate capacitor has a voltage V = 6.0 V between its plates. Each plate carries a surface charge density σ = 7.0 nC/m2. What is the distance between the plates?
A helicopter, starting from rest, accelerates straight up from the roof of a hospital. The lifting force does work in raising the helicopter. What is the average power generated by the lifting force
An alpha particle (m=6.6 x 10-27) is accelerated by a potential difference of 5000 Volt and then enters a region with a vertical (out of the page) 0.75 T magnetic field. Calculate the speed of the alpha particle
A delivery truck travels 22 blocks south, 25 blocks east and 21 blocks north. What is its final displacement from the origin
A 1 kilogram object is moving in the x direction at 17.7 m/s. Just3.8 second later, it is moving at31.5 m/s at 32.4° to the x axis. Find the direction and magnitude of force applied during this time
A 17.00{\rm kg} lead sphere is hanging from a hook by a thin wire 3.30{\rm m} long, What must be the minimum initial speed of the dart so that the combination makes a complete circular loop after the collision
q1. a 500.0 g pot of water at room temperature 20.0 degrees c is placed on a stove. how much heat is required to change
A series RCL is at resonance and contains a variable resistor that is set to 175 ohms. how much power is delivered when the variable resistor is set to 562 ohms
An astronaut is being tested in a centrifuge. The centrifuge has a radius of 7 m and, in starting, rotates according to ? = 0.30t2, When t = 5.0 s, what is the magnitude of the astronaut's linear speed
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