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Coherent sources A and B emit electromagnetic waves with wavelength 2.00 \rm cm. Point P is 4.86 \rm m from A and 5.24 \rm m from B.
What is the phase difference at P between these two waves?
The position of a particle moving along an x axis is given by x = 17t2 - 6.0t3, What is the maximum positive coordinate reached by the particle
If an amount of heat Q_H is extracted from a hot reservoir (at temperature T_H) but is simply wasted by dumping into a cold reservoir, by how much has the entropy of the Universe increased
two singly charged ions moving perpendicular to a uniform magnetic field B=0.4T each has a speed of 500 km/s, calculate the difference in masses of the two ions
One generator uses a magnetic field of 0.190 T and has a coil area per turn of 0.0425 m2. What magnetic field should be used in the second generator
A plane has an airspeed of 142m/s. A 16.0m/s wind is blowing soutward at the same time as te plane is flying. what is the magnitude of that velocity
The acceleration of gravity is 9.81 m/s^2. Assuming that air resistance is simply a constant 96 N force on the person during the fall, identify the person's velocity just before hitting the net. Answer in units of m/s.
A 21kg solid door is 220 cm tall, 92cm wide, What is the door's moment of inertia for rotation about a vertical axis inside the door, 13cm from one edge
Consider a rectangular metal loop of length of 0.15m and width of 0.08m. Determine the emf induced in the wire on the left side of the loop
Electrons are accelerated from rest through an electric potential difference of 250kV, then the potential difference is changed to 60kV. What is the ratio of the two de Broglie wavelengths produced by the electron
When a potential difference of 12 V is applied to a wire 6.2 m long and 0.24 mm in diameter the result is an electric current of 2.1 A. What is the resistivity of the wire
An object is placed 17.4 cm to the left of a thin diverging lens that has focal length ?11.7 cm. What is the distance between the object and the image
A bridge of length 50.0 m and mass 8.10 * 10^4 kg is supported on a smooth pier at each end, What are the forces on the bridge at the points of support
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