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A laser used in a holography experiment has an average output power of 4.93 mW. The laser beam is actually a series of pulses of electromagnetic radiation at a wavelength of 632.8 nm, each having a duration of 23.2 ms. Calculate the energy (in joules) radiated with each pulse.
A 10 cm high object is situated 25 cm in front of a convex mirror that has a radius of curvature of 1.00 102 cm.
Water (viscosity = 1centipoise) flows through a cylindrical plug in a laboratory experiment. what is the permeability of the sample in cm^(2)
A boat has a mass of 6800 kg. Its engines generate a drive force of 4000 N, find the magnitude and direction of the boat's acceleration
In a heat conductivity experiment, a slab of silicon of thickness 2 x 10^-3m and area of 0.40m^2 seperates condensing steam(lv=540cal/g) at 100 degree C, Find the increase of entropy in the universe during one minute of this experiment
Consider two masses, mp and mt, on a surface where friction is negligible. Write the expression for conservation of momentum in the x- and y-directions
You have two small 2.0- balls that have been given equal but opposite charges, but you don't know the magnitude of the charge. To find out, you place the balls a distance apart on a slippery horizontal surface, release them, and use a motion detec..
An 52.0 N box of clothes is pulled 6.7 m up a 30.0° ramp by a force of 107 N that points along the ramp. If the coefficient of kinetic friction between the box and the ramp is 0.22, compute the change in the box's kinetic energy.
A 65-kg person wants to get to the top of a 2 m high ledge by swinging up to the top by running and grabbing a suspended rope suspended 5m above the ground by a tree.
A near-sighted person might correct his vision by wearing diverging lenses with focal length f = -55cm. Use ray tracing to determine the height of the image
A 70.0 kg skier with an initial speed of 13.0 m/s coasts up a 2.50 m high rise as shown in Figure 6.23. Find his final speed at the top
A standing wave is set up in a 200-cm string fixed at both ends. The string vibrates in 5 distinct segments when driven by a 120-Hz source. What is the fundamental frequency for the string
A speed skater goes around a turn that has a radius of 27 m. The skater has a speed of 15 m/s, What is the mass of the skater
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