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a person looking out the window of a stationary train noticesthat raindrops are falling vertially down at a speed of 6.59 m/srelative to the ground. when the train moves at a constand velocitythe raindrops make an angle of 25 degrees when they move past thewindow, as the drawing shows. How fast is the train moving.
Let us take half the terminal speed as a reasonable "upper bound" beyond which we should not use our constant acceleration free-fall relationships.
When venturing forth on Planet X, you throw a 5.01 kg rock upward at 12.6 m/s, What does the rock weigh on planet X
What is the magnifying power of an astronomical telescope consisting of a reflecting mirror whose radius of curvature is 7 m, and an eyepiece whose focal length is 25 mm
A helium-neon laser, radiating at 632.8 nm, has a power outputof 3.0 mW. The beam diverges (spreads) at angle = 0.17 mrad. What is the power of a point source providing that intensity atthat distance
The electrical field within a continuous distribution of charge is given by the equation E= cxi+cyj+czk, Write the equation for E in terms of the position vector r
Now adapt the ideas of the energy and entropy of mixing to gasses in different cylinder. The temperature is fixed (there is a thermal reservoir so that all changes are done isothermally). A system starts with n(He)=10 moles of helium in a cylinder..
A 'clicker' is sounding at 12 Hz. If you are moving towards the 'clicker' at 29 m/sec, what frequency do you hear instead
A track has a height that is a function of horizontal position x, given by h(x) = x^3 + 2x^2 ? 14x + 16. What kind of equilibrium exists at each of these positions
A jet transport has a weight of 1.00 106 N and is at rest on the runway. The two rear wheels are 15.6 m behind the front wheel, find the normal force exerted by the ground on the front wheel
A bowling ball of mass 7.10kg and radius 9.20cm rolls without slipping down a lane at 3.64m/s. Calculate its total kinetic energy
A mass-spring system oscillates with an amplitudeof 4.40 cm. If the spring constant is 269 N/m and the mass is 403g, Determine the maximum acceleration
Consider a balloon containing nitrogen molecules at room temperature (20°C) and atmospheric pressure. what is the number of molecules in the balloon
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