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A 3690-line/cm grating produces a third-order fringe at 21.4deg angle. What wavelength of light is being used?
Two waters are in equilibrium with air, one at pH 9.5 and one at pH 7.3. these waters are mixed in 1:1 proportions. Assuming that carbonate species dominate the acid/base behavior of boh solutions and that no gas transfer occurs when they are mixed
If you observe light reflected from Saturn's rings, youshould see a redshift at one edge of the rings and a blueshift atthe other edge. what is the orbital velocity of particles at the outer edge of the rings
an car mass 1000kg is traveling east30m/s . it is hit by another car 2000kg whick was travelingnorthwest at 20m/s.the two cars stick together. what is the velocity of the cars after they stick together
A simple highway curve is planned to connect two horizontal tangents that intersect at sta. 2500+00.00 at an external angle of 52°. For a design speed of 60 mi/h and a curve radius of about 1.25 times the minimum allowable
The annual maximum series of flood magnitude in a river has a normal distribution with a mean of 6000 m^3/s and a standard deviation of 800 m^3/s
Vehicles arrive at a tollbooth according to the function h(t)= 5.2-0.2t, where h(t)is in vehicles per minute and t is in minutes. The toll booth operator processes 3 vehicles per minute. Determine the total delay, maximum queue length, and the time i..
A froth flotation process is used to concentrate copper ore. It is a two stage process with a rougher stage followed by a cleaner stage. The cleaner tailings are returned to the rougher flotation. Both stages are non-reactive unit operations and both..
If we apply a breaking system to a skateboard while the speed of the skateboard is 5Milies per hour, the rider average weights is 180bounds while his height is 170 cm
A steel cable is to support an elevator whose total (loaded)mass is not to exceed 3100kg. calculate the diameter of the cable required
There are 10 vehicles in a queue when an attendent opens a toll booth. Vehicles arrive at the booth at a rate of 4 vehicles per minute. The attendent opens the booth and improves the service rate over time following the function u(t)= 1.1 +0.3t, wher..
a cup of water is heated with a heating coil that delivers 10.36W of heat. in 14.89 minutes, what is the mass of the water
Two metal plates are held together by two steel rivets, each of diameter 0.24 cm and length 1.3 cm. How much force must be applied parallel to the plates to shear off both rivets?
A solenoid has a cross-sectional area of 2.20 10-4 m2, consists of 200 turns per meter, and carries a current of 0.56 A. Find the average current induced in the coil
A 3000-kg truck runs into the rear of a 1000-kg car that wasstationary. What was the speed of the truck before the collision
If you touch the terminal of a battery, What current will pass through your body if you touch the two terminals of a 9.0 V battery with your two hands
A solar collector is placed in direct sunlight where it absorbs energy at the rate of 890 J/s for each square meter of its surface. What equilibrium temperature does the collector reach
Suppose he enters the water at a speed of 16.0 m/s via path 1. Explain how fast is he moving on path 2 when he releases the rope at a height of 4.00 m above the water? Ignore the effects of air resistance.
Jack and Jim are resting on an offshore raft after a swim. They estimate that the horizontal distance between a trough, Calculate how fast the waves are moving
The root-mean-square speed (thermal speed) of the molecules of a gas is 200 m/s at a temperature 23.0°C.
A square loop 15 cm on a side in the xy plane. Its resistance is 0.55 ohms. determine the direction of the induced current in the loop
The mass of a certain planet is 6.93×1023 kg, and its radius is 1111 km. What is the acceleration due to gravity on the planet's surface
A glass is slid across a table top, goes off the edge and falls to the floor below. With what velocity did the glass leave the table top
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