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A coin slides over a frictionless plane and across an xy coordinate system from the origin to a point with xy coordinates (1.9 m, 8.0 m) while a constant force acts on it. The force has magnitude 5.4 N and is directed at a counterclockwise angle of 103° from the positive direction of the x axis. How much work is done by the force on the coin during the displacement?
On planet Zog, Mr. Spock measures that it takes 1.47 s for a mass of 0.50 kg to hit the ground when released from rest from a height of 2.85 m. Calculate the size of the acceleration of gravity on that planet
Two children hang by their hands from the same tree branch. The branch is straight, and grows out from the tree trunk at an angle of 25.7° above the horizontal, What is the magnitude of the net torque exerted on the branch by the children
You are standing at a red light on SW 8th Street at 97th Avenue. The light turns green, find the work done on your car by the frictional force
The wave is travelling to the right at 50.0 m/s. What is the amplitude if the highest displacement is 38.0 cm and the total distance travelled by the wave is 16.0 m.
An aluminum wire having a cross-sectional area equal to 2.70 10-6 m2 carries a current of 6.50 A. The density of aluminum is 2.70 g/cm3. calculate the drift speed of the electrons in the wire
A spring with k = 30.0 N/m is at the base of a frictionless 30.0° inclined plane. how far up the incline does it travel before coming to rest
A 3.7-kg block of iron (c=0.11 kcal/kgoC) that has been brought to a temperature of 1,062oC is placed on top of a 2.5-kg block of ice (c=0.5 kcal/kgoC) that has been cooled to -50oC. what is the final temperature of the iron block
A 80 pF capacitor is charged to a potential difference of 140 V, and the charging battery is disconnected. what is the capacitance of this second capacitor
There are two forces on the 2.13 kg box in the overhead view of the figure but only one is shown. For F1 = 26.7 N, a = 14.5 m/s2, and ? = 31.1°, find the second force in unit-vector notation
Two thin rods of length L lie along the x-axis, one between x=a/2 and x=a/2+L and the other between x= - a/2 and x= - a/2 - L. Each rod has positive charge Q distributed uniformly along its length.
the components of an airplane's motion are described as: 193 m/s west and 151 m/s south. determine the speed of the airplane
Write at least one paragraph in which you define diffraction and interference, discuss Huygens' Principle and explain why light passing through a narrow slit
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