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You want to photograph a circular diffraction pattern whose central maximum has a diameter of 1.2cm. You have a helium-neon laser (λ=633nm) and a 0.12-mm-diameter pinhole.
How far behind the pinhole should you place the viewing screen?
One end of a long rod (n=1.5) is formed into a convex surface with a radius of curvature of 6cm. Find the image and object focal lengths, f' and f, and mark the locations of the foci in your to-scale sketch
A long rod of lenght " L " and cross sectional area "A" is weighted such that when it is placed in a bucket of water it floats vertically. determine the magnitude of the buoyant force on the rod
A glass plate whose index of refraction is 1.5 is immersed in a liquid. The surface of the glass is inclined at an angle of 47.0° with the vertical. What is the index of refraction of the alcohol
At 17°C, a rod is exactly 18.91 cm long on a steel ruler. Both the rod and the ruler are placed in an oven at 240°C, What is the coefficient of thermal expansion for the material of which the rod is made
A car traveling initially at 7.0 m/s accelerates to velocity 12.0 m/s in 2.0 s. What is the average acceleration of the car
An m = 6.60-kg clay ball is thrown directly against a perpendicular brick wall at a velocity of 22.0 m/s and shatters into three pieces, which all fly backward, as shown in the figure. The wall exerts a force on the ball of 2630 N for 0.110 s.
a charge of -3.35 nc and a charge of -6.40 nc are separated by a distance of 80.0 cm. find the position at which a
find the total mechanical energy of a mass-spring system with m 1.30kg and maximum speed 0.750
In the equation, x is measured in meters and t in seconds. What is the maximum energy stored in the spring during an oscillation
A(n) 331 g object is attached to a spring and executes simple harmonic motion with a period of 0.294 s. The total energy of the system is 1.7J. Find the force constant of the spring. (N/m) Find the amplitude of the motion (in cm)
A 1.0-kg mass is projected vertically upward from ground level with an initial speed of 45 m/s. How much work is done on the mass by air resistance
A toy train rolls around a horizontal 1.3--diameter track. The coefficient of rolling friction is 0.12. What is the magnitude of the train's angular acceleration
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