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A sailboat leaves a harbor and sails 1.1 km in the direction75 degrees north of east, where the captain stops for lunch. Ashort time later, the boat sails 1.8 km in the direction 15 degreessouth of east. What is the magnitude of the resultant displacement?
When an ion accelerates through a potential difference of 2240V, What is the charge on the ion
High-speed stroboscopic photographs show that the head of a 240 g golf club is traveling at 44 m/s just before it strikes a 46 g golf ball at rest on a tee. Find the speed of the golf ball just after impact
A woman hangs by her feet from "gravity boots" that support her weight from above. What is the average blood pressure in a major artery in her ankle
q1. a 750 gram grinding wheel 25.0 cm in diameter is in the shape of a uniform solid disk. we can overlook the small
Some mass spectrometers use an electric field to give the incoming ions a certain known kinetic energy as they enter the magnetic field. What is the final kinetic energy of the ion just before it reaches the ion detector
The summit of a mountain 2450 m above a baseball camp is measured on a map to be 4 m horizontally from the base camp in a direction 32.4 west of the north. Illustrate what are the components of the displacement vector from the camp to the summit
A piece of Nichrome wire has a radius of 5.2 x 10-4 m. It is used in a laboratory to make a heater that dissipates 3.50×102 W of power when connected to a voltage source of 100 V. Ignoring the effect of temperature on resistance, estimate the necessa..
q1. a demented scientist creates the new temperature scale the z scale. he decides to call the boiling point of
A transverse wave on a string is described by the equation y(x, t) = (2.27 cm) sin[(109 rad/s)t + (13 rad/s)x]. How fast does the wave move along the string
A uniform 1.3 kg rod that is 0.8 m long is suspended at rest from ceiling by two springs, one at each end of the rod. Both springs hang straight down from the ceiling.
Find the final velocity of the two balls if the ball with velocity v2i = -21.2 cm/s has a mass equal to half that of the ball with initial velocity v1i = +27.6 cm/s
The inner and outer shells are connected by a wire (passing through a hole in the middle shell, without touching it), so they are at the same potential.
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