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Using a thin lens with a focal length of f =+5.2cm, a student makes two measurements. She finds the distance to the object to be o =+3.1cm. What distance, i, should she expect for the image? Explain whether this is a real or virtual image using the sign convention. Then find the magnification of the image also explaining your answer using the sign convention.
A submarine dives to a depth of 79 meters in the ocean. What is the force (in Newtons) acting on a hatch that has an area of 2.2 square meters?
A mass slides a distance of 12 m down a 25 degree frictionless incline with an initial speed of 1.5 m/s. Theoretical: Find the speed of the block after a 12 m displacement using the energy method.
Fireflies emit flashes of light to communicate, directly converting chemical energy into the energy of visible-light photons. How many photons does the firefly emit during each flash
Assuming frictionless conditions, a table has a hanging mass, m1, over a pulley at the left side and another hanging mass, If m1 = .45kg, & m2 = .3kg, & m3 = .25kg what is the new accelration of the system
A test of the prototype of a new automobile shows that the minimum distance for a con- trolled stop from 92 km/h to zero is 54 m. How much time does the car take to stop
How much time does it take to reach an angular velocity of 36 rad/s, starting from rest.
For research purposes a sonic buoy is tethered to the ocean floor and emits an infrasonic pulse of sound. The period of this sound is 73.1 ms. Determine the wavelength of the sound
Think about the reflection of TE polarized wave from the boundary among two media. For the angle of incidence θ=60 the amplitude reflection coefficient is equal to r. discover (express through r) the amplitude reflection coefficient in the case of ..
A rigid body is assembled from 3 "mass-less" rods and three identical "point masses." The masses are placed separately at ai (i hat), aj (j hat), Find the inertia tensor for this rigid body
The two items attract one another with a force of strength 0.6 N when they are 1 cm apart. If they have equal but opposite charges, a) what is the magnitude of the charge
An oil drop whose mass is determined to be 3.3x10^-15 is held at rest between two large plates separated by 1cm while the potential difference between them is 340 V. How numerous excess electrons does this have here.
Suppose a string of length l under a certain tension has a fundamental frequency of 120 Hz. what is the new fundamental frequency
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