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A person looking out the window of a stationary train notices that raindrops are falling vertically down at a speed of 5.54 m/s relative to the ground. When the train moves at a constant velocity, the raindrops make an angle of 25° when they move past the window, as the drawing shows. How fast is the train moving?
You want to store 10^-5 C of charge on a capacitor, but you only have a 100 V voltage source with which to charge it. What must be the value of the capacitance
The electron and proton of a hydrogen atom are separated (on the average) by a distance of approximately 5.3 x 10-11 m, what is a fundamental difference between the two forces
An electric motor rotating a workshop grinding wheel at a rate of 8.20 101 rev/min is switched off. Through how many radians has the wheel turned during the interval found in (a)
You are asked to design a spring that will give a 1310-kg satellite a speed of 3.50 m/s relative to an orbiting space shuttle, What must the force constant of the spring be
A converging lens (f = 14.9 cm) is located 24.6 cm to the left of a diverging lens (f = -7.07 cm). Locate the final image of the stamp relative to the diverging lens
A series RLC circuit has components with the following values: L = 22.0 mH, C = 86.0 nF, R = 25.0 ?, and ?Vmax = 100 V, with ?v = ?Vmax sin ?t. Find the resonant frequency of the circuit.
A firm has net income for the year of $32,600. at the beginning of the year, the firm had common stock of $88,000, find the amount of the net new equity raised during the year
A converging lens, which has a focal length equal to 8.2 cm, is separated by 32.5 cm from a second lens. Find the position of the final image using both a ray diagram and the thin-lens equation
A spherical weather balloon is filled with hydrogen until its radius is 3.10 m. What is the net force acting on the balloon and its instruments after the balloon is released from the ground?
A photon has momentum of magnitude 8.15×10?28kg?m/s. What is the wavelength of this photon
A 23 kg body is moving in the direction of the positive x axis with a speed of 292 m/s when, owing to an internal explosion, it breaks into three pieces.
Using a map of the United States we find that Atlanta, GA is in a direction north of east from Dallas, TX. What is the displacement from Dallas to Chicago
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