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A pilot flies her route in two stright-line segments.The displacement vector A for the first segment has a magnitude of 249 km at a direction of 30 degress north of east. The displacment vector forthe secpnd segment has a magnitude of 171km and a direction due west. The resultant displacement vector is R=A+B and makes the angle with the direction due east. Using the component method find (a) the magnitude of R and (b) the directional angle.
You have two identical containers, one containing gas A (mA = 6.64 ×10?27 kg) and one containing gas B (mA = 1.39 ×10?27 kg). At what temperature will you accomplish your goal
An 68.0-m-long brass rod is struck at one end. A person at the other end hears two sounds as a result of two longitudinal waves, What is the time interval between the two sounds
The intensity 18m from a source of sound is measured to be 10^-4W/m^2. Determine the intensity of the sound in decibels
A jet flying at 125 m/s banks to make a horizontal circular turn. The radius of the turn is 3810 m, Calculate the magnitude of the necessary lifting force
A string of a violin is 32 cm long between fixed points with a fundamental frequency of 440 Hz and a mass per unit length of 7.2 x 10-4 kg/m. What are the wave speed and the tension in the string
A closed container with volume of 7.80 L holds 9.6 g of liquid helium at 3.00 K, What is the final pressure inside the container
A small bulb is rated at 7.5 W when operated at 125 V. The tungsten filament has a temperature coefficient of resistivity a = 4.5 ? 10-3 / °C. What is the resistance of the filament (in ohms) at room temperature
Light from a helium-neon laser (? = 633 nm) passes through a circular aperture, What is the diameter (in mm) of the hole
What is the tangential velocity of a satellite in a circular orbit 300km above the surface of the Earth, How long does the satellite take to complete one orbit
The driver of one car sounds a 365 Hz frequency horn and the driver of the other car hears a frequency of 392 Hz, Determine the speed of both cars
At a certain location, the Earth's magnetic field has a magnitude of 5.5.*10^-5 T and points in a direction that is 76 degrees below the horizontal. Find the magnitude of the magnetic flux through the top of a desk at this location that measures 140c..
A box stands against the wall of a cylinder that is rotating. The cylinder has a radius of 30cm. What is the minimum consant speed (magnitude of linear velocity) the box must move so it doesn't slip
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