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A person stands 3.4m in front of a wall that is covered floor-to-ceiling with a plane mirror. His eyes are 2.0m above the floor.
See diagram that shows a steam-tube in which the rate of flow of mass is dm/dt. Write down an expression for dm/dt at the turbine in terms of the density.
Which kind of spherical mirror, concave or convex, can be used to start a fire with sunlight? For the best results, how far from the mirror
Figure shows the circuit of a multistage amplifier. Identify the stages and describe the operation and principle features of the amplifier.
A light ray travels through a distance a, reflects from a curved mirror, and then travels through a distance b. The ABCD matrix has the form as given
Sketch the energy diagram for the system when the maximum kinetic energy is Ko=(1/2)mVo^2.
Solar energy reaches the earth at a rate of about 1400 W/m^2 of surface perpendicular to the direction to the sun.
The lowest lying excited state of sodium is 2.104 eV above the ground state. Given that Planck's constant is 4.135x10 (to the negative 15 pwr.).
A sample of an ideal crosslinked rubber has a number average molecular weight between crosslinks of 5000 and a density of 900kg/m3.
A ray of light passes between layers of material as shown. Find the minimum value for ?_2 and the corresponding value of ?_1 that will result in total internal
Two particles, of mass 1 kg and 3 kg, are traveling towards each other with velocities of 100 m/s and -40 m/s respectively.
A block of mass M slides along a horizontal table with speed Vo. At x=0 it hits a spring constant k and begins to experience a frictional force.
What distance will the box slide along the ground before coming to a stop?
Neglecting friction, what will be the speed of the roller coaster at the top of the next hill, which is 26.00 m above the ground?
Can we find the trajectory of the marble by using the energy conservation instead of integrating the r-equation we have just obtained?
While talking to someone who is wearing sunglasses you see yourself reflected in their lenses. Your face is 10.0 cm away from the glasses
The lift makes an angle of 14.6 degrees with the horizontal. What is the change in the skier's gravitational potential energy?
A plane mirror is placed in front of a multiple ray projector so that the central ray is back upon itself.
If the object were attached to the spring, at what angular frequency (in rad/s) would it oscillate?
A source of visible light is placed before an air-spaced Fabry-Perot etalon od diameter 20mm and mirror separation d = 1mm.
A roll of paper towels is a uniform hollow cylinder, mass M=.75 kg, outer radius Ro=.084 m, inside radius of the hollow core Ri=.036 m.
Suppose you walk with a speed of 1.20 m/s toward a plane mirror. What is the speed of your image relative to you, when your velocity is
The square steel plate has a mass of 1800 kg with mass center in its center G. Calculate tension in each of the three cables
If the wavelength of visible light was around 10cm instead of 500nm and we could see it, what effect would this have on diffraction and interference?
Assuming that it reverses direction with uniform spin velocity, find the average force on the string while the yo-yo turns around.