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The figure shows an object and its image formed by a thin lens. Assume that L=15.0 cm and y=3.25mm. what is the focal length of the lens? what is the height of the image?
A brick has a mass of 250 gram in air. Calculate the volume of the brick and Calculate the apparent mass of the brick if it is submerged in water
At a given point above the surface of Earth, the gravitational acceleration is equal to 7.8 m/s2. At what speed could a satellite be in orbit at this point
You have a concave lens whose focal length has an absolute value of 8 cm and several convex lenses with f=5.0 cm, 12 cm, 15 cm, and 20 cm. determine the focal length of the concave lens
what is the kinetic energy of a ball of mass 16.1 kg at the apex (highest point) of its trajectory, if it is thrown with an initial speed of 45 mph
By how much should the temperature of the low-temperature reservoir be changed to increase the efficiency to 39.0%
The index of refraction for a diamond for red light of wavelength 652 nm is 2.35, while that for blue light of wavelength 433 nm is 2.26. Assume white light is incident on the diamond at33.5?. Discover the angle of refraction for red light.
What are the forces acting on the board due to the two supports as a diver of mass 63 kg stands at the end of the board over the water.
What is the minimum thickness of coating which should be placed on a lens in order to minimize reflection of 571 nm light
Derive an expression for the energy needed to launch an object from the surface of Earth to a height h above the surface. Ignoring Earth's rotation, how much energy is required to get the same object into orbit at height h?
q1. a car is travelling with a velocity of 88.0 kmh. it accelerates at a constant rate of 20 ms2. if the acceleration
A mica sheet 0.969 ?m thick is suspended in air. In reflected light, there are gaps in the visible spectrum at 460, 525, Calculate the index of refraction of the mica sheet
A generator connected to an RLC circuit has an rms voltage of 140V and an rms current of 31mA. what is the inductive reactance of the circuit
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