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An eagle can determine that two light brown shrews sitting 1.0 cm apart on a pathway 125 m below her are in fact two shrews rather than a small rat. Assumig that only diffraction limits her ability to resolve the two shrews, estimate the diameter of her pupil. Use 500 nm as the average wavelength.
An air puck of mass m1 = 0.15 kg is tied to a string and allowed to revolve in a circle of radius R = 1.1 m on a frictionless horizontal table. What is the horizontal force acting on the puck
A 1360 N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A 1960 N crate hangs from the far end of the beam.
A 16 cm x 16 cm square loop of wire lies in the xy-plane with its bottom edge on x-axis. The resistance of the loop is 0.490 ohms. A magnetic field parallel to the z-axis is given by B= 0.830 y^2 t, where B is in tesla, y in meters, and t in seconds...
Two wires are separated by 3.0 cm and each is of length 1.5 m. They repel each other with a force of 4.0 N. The current in one wire is 5.0 A. find the current in the other wire
A steel wire is used to stretch a spring. An oscillating magnetic field drives the steel wire back and forth. what stretch of the spring produces a standing wave with six nodes
2.0 kg ball moving with a speed of 3.0 m/s hits, elastically, an identical stationary ball as shown. If the first ball moves away with angle 30° to the original path,
Does current through a power supply increase when parallel bulbs are added? what is the current through the power source
A 3.9kg ball with a velocity of 3.2m/s in the +x-direction collides head-on elastically with a stationary 1.5kg ball. What is the speed of the first ball after the collision
Two capacitors (C1=1.00 ?F and C2=2.00 ?F) are charged with Q1=3.00 ?C on the positive plate of capacitor 1 and Q2=3.00 ?C on the positive plate of capacitor 2, the total charge on the positive plate of capacitor 1
Determine the vertical component. when would a microphone at the other end first detect a disturbance.
An oscillatory water wave has a period of 2.56 seconds and a wavelength of 7.12 cm. What is the angular frequence
A man drags a table 3.80 m across the floor, exerting a constant force of 51.0 N, directed 31.0° above the horizontal. Find the work done by the applied force
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