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Two objects are thrown simultaneously from the same height at 45° angles to the vertical with a speed of 20 m per second; one up, the other one down. Find the difference between the heights the objects will be at two seconds later. How are these objects moving in regards to one another?
You're doing a double-slit experiment with two different colors. What's the wavelength of that color
Two cylindrical rods are identical, except that one has a thermal conductivity k1 and the other has a thermal conductivity k2. they are placed between two walls that are maintained at different temperatures TW (warmer) and TC (cooler).
A girl with a mass of 60kg springs from a trampoline with an initial upward velocity of 8.0 m/s. what is the maximum height that the girl (with box) reaches
The electromagnetic wave that delivers a cellular phone call to a car has a magnetic field with an rms value of 1.9×10-10 T. The wave passes perpendicularly during an open window, the area of which is 0.19 m2. How much energy does this wave carry dur..
question in a nuclear magnetic resonance spectrometer a 15mh coil is designed to detect an emf oscillating at 400mhz.
Light of a wavelength 450 nm is incident on a sodium emitter in a photoelectric effect apparatus. What is the cutoff frequency for the emitter
Why should the period increase when the mass that is moving increases - Why should a spring that is stretched greatly by a given mass produce slower oscillations that a spring that is only stretched a little bit?
For the polarisers, assume the incident light is linearly polarized, the transmitted intensity (through both polarisers) is 0.15×I0, and the axis of the second polarizer makes an angle θ=41° with the axis of the first polarizer. What is the angle (in..
A dipole moment is placed in a uniform electric field oriented along an unknown direction. The maximum torque applied to the dipole is equal to 0.1 N.m. When the dipole reaches equilibrium its potential energy is equal to -0.2 J.
A series LCR circuit has values R = 10 ohm, C = 5.5 μF, and L = 120mH. Determine the total impedance at 50 Hz and Determine the resonant frequency
A segment of wire carries a current of 25 Amp along the x axis from x=-2.0 meter to x=0 meter and then along the z axis from z=0 to z= 3.0 meter. Find the magnitude of the force on this segment of wire
A 1000 kg roller coaster car starts from rest from a hilltop 80.0 m above the ground, find the average frictional force between the car's wheels and the track
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