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A mad physicist assembled an EM wave generator. He claims that the generator is able to produce radio waves that have a frequency of 10 kHz and a wavelength of 100 meters. Use basic physics principles and simple calculations, explain why his generator can never do that.
Two lenses, one converging with focal length20.0cm and one diverging with focal length? 11.5cm , are placed 25.0?cm apart. Determine the magnification of the final image formed
Air that initially occupies 0.16 m3 at a gauge pressure of 100 kPa is expanded isothermally to a pressure of 101.3 kPa and then cooled at fix pressure until it reaches its initial volume. Estimate the work done by the air
Consider a spring of stiffness k and mass m. If we stretch - simultaneously - both ends of the spring by force F1 and F2. What will be the elongation of the spring
A uniform electric field of magnitude E =36 N/C points along the x-axis. A circular loop of radius R=20cm is centered at the origin with normal loop pointing theta=25 degrees above the x-axis. Calculate the elextric flux in Nm^2/C that passes thro..
1 an antenna is connected to a car battery. will the antenna emit electromagnetic radiation? why or why not? explain.2
primary and secondary amines form hydrogen bonds among themselves. assume you have a solution of ethanamine ethylamine.
A pulled tablecloth exerts a frictional force of 0.6 N on a plate with a mass of 0.2 kg. What is the acceleration of the plate? Round the final answer to the nearest whole number.
An electric motor rotating a workshop grinding wheel at a rate of 9.10 101 rpm is switched off. How long does it take for the grinding wheel to stop
A transformer consisting of two coils wrapped around an iron coreis connected to a generator and a resistor, as shown in thedrawing. There are 11 turnsin the primary coil and 22 turns in the secondary coil. The peakvoltage across the resistor is 73.8..
A 455 pF capacitor is charged to 155 Volt and then quickly connected to a 255 mH inductor. Find the peak value of the current
A 10-kg block starts from rest on an incline. After 1 second the block travels at 12 m/s 1 meter down the incline. What is the theta, the angle of the incline
A rifle bullet is fired at an angle of 30º below the horizontal with an initial velocity of 800 m/s from the top of a cliff 80 m high. How far from the base of the cliff does it strike
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