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Discuss how the size of details of an object that can be detected with electromagnetic waves is related to the wavelength of the EM wave, by comparing details observable with two different types (for example, radar and visible light or infrared and X-rays). Would an individual atom be observable by the human eye using a powerful optical microscope (one that uses visible light)? Why don't buildings block radio waves as completely as they do visible light?
A horizontal, 10 - m plank weighs 100N. It rests on two supports that are placed 1.0m from each end. What is the torque of the weight of the plank
Hoursehoe bats use the Doppler effect to determine their location. A horsehoe bat flies towards a wall at a speed of 16.0 m/s while emitting sound of frequency 39.0kHz. What is beat frequency between the emission frequency and the echo? ____________ ..
A circular coil (500 turns, radius=.195m) is rotating in a uniform magnetic field. At t=0 s. Find the magnitude of the magnetic field at the location of the coil
A sample of ethyl alcohol (C2H5OH) has a density of 806 kg/m3 and a volume of 1.73 x 10-3 m3. find the number of molecules in the sample
A ball is thrown vertically upward with a speed of 25.7 m/s. The acceleration due to gravity is 9.8 m/s2. How high does it rise
A car is traveling at 53.85 mph. The driver applies the brakes and the car decelerates at 1.1 m/s2. What is the stopping distance in meters
A rock of mass 43 kgaccidentally breaks loose from the edge of a cliff and fallsstraight down, What is the magnitude of the acceleration of the rock
What is the force of gravity between two 1000-kg cars separated by a distance of 25m on a interstate
in a cloud chamber experiment a proton enters a uniform 0.260t magnetic field directed perpendicular to its motion. you
Consider a 2.4-mH coil carrying a current of 1.1 Amp clockwise. find what average emf will appear across the coil
a show that the intensity i the energy crossing unit areaper unit time is the product of the energy per unit volume u
An LR Circuit consist of an inductor with L = 2.50*10^-4 H and a resistor with R = 1.10 ohm connected in series to an oscililating source of emf. What is the phase angle of the current
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