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Question: The velocity of the wind relative to the water is crucial to sailboats. Suppose a sailboat is in an ocean current that has a velocity of 2.3 m/s in a direction 31 degrees east of north relative to the Earth. It encounters a wind that has a velocity of 4.1 m/s in a direction of 53 degrees south of west relative to the Earth. What is the magnitude of the velocity of the wind relative to the water in m/s? What is the angle of the velocity of the wind relative to the water degrees S of W?
Running at 600 rpm ccw, the original disk indicates a maximum amplitude of 2.80 mm at 45° cw from a reference mark on the disk.
a physics teacher performing an outdoor demonstration suddenly falls from rest off a high cliff and simultaneously
consider three identical metal spheres ab and c. sphere a carries a charge of 5q. sphere b carries a charge of -q.
A length of wire has a radius of 3.00 × 10 -3 m and a resistance of 0.200 ?. When the potential difference across the wire is 10.0 V, calculate the density of free electrons in the wire
A creamy salad dressing is made up of heavy cream, corn oil, and vinegar (as well as a pinch of dry mustard, salt and pepper). What is the order of the layers from top to bottom
A point charge Q = 4.90 x 10-6 C is at the center of a conducting spherical shell of radius R = 29.30 cm. What is the field in the region between the point charge and the shell
A circular loop has a current of 7.00 amps in the clockwise direction and a radius of 10.0 cm. The center of the loop is 20.0 cm above a long straight wire. What is the direction and magnitude of the current in the wire if the magnetic field at the c..
A radioactive isotope has a half-life of 76.0 min. A sample is prepared that has an initial activity of 16.0E10 Bq. How many radioactive nuclei are initially present in the sample
Suppose that a 7 centimeter diameter, 120 Watt light bulb radiates all its energy as a single wavelength of visible light. Find the electric field strength at the surface of the bulb
question1sarah age 55 is experiencing some hot flashes of menopause and wants to mange her symptoms without taking
What is the acceleration on a body that approached the earth and comes within 6 earth radii of the earth's surface?
At the Earth's surface, a projectile is launched straight up at a speed of 9.6 km/s. Calculate to what height will it rise
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