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An archer pulls his bow string back 0.440 m by exerting a force that increases uniformly from zero to 224 N.
(a) What is the equivalent spring constant of the bow?
_____ N/m
(b) How much work does the archer do in pulling the bow?
_____ J
A sound wave with intensity 39 mW/m2 interferes constructively with a sound wave that has an intensity of 12 mW/m2. What is the intensity of the superposition of the two
light ray is incident normally to the long face (the hypotenuse) of a 45° -45° -90° prism surrounded by air, Calculate the minimum index of refraction of the prism
At the bottom, it hits another stationary car with equal mass. The two cars have Velcro and stick together. At what speed do the two cars move after the collision
A span of a bridge is 200.00m at 10.0c Its length increases to 200.25m when the temperature increases to 40.0c. what is the coefficient of thernmal expansion of the material
A device called a velocity selector is a tube with a crossed electric and magnetic fields set up so that the particle entering with a velocity v_0 along the axis of the tube experiences zero net force.
A satellite has a mass of 99 kg and is located at 2.01 106 m above the surface of Earth. obtain the magnitude of the gravitational force on the satellite
Suppose two highly precise, identical clocks are synchronized and one clock is placed on the North Pole and the other on the equator. how much will the clocks differ in time
Two sheets of polarizing material are placed with their transmission axes at right angles to each other. What is the intensity of the transmitted light when the middle sheet is removed
The potential difference between two parallel plates is 566 V. An alpha particle with mass of 6.64 10, What is the speed of the alpha particle when it reaches the other plate
The electric field within the membrane separating the inside and outside of a biological cell is approximately 7.7MV/m, what is the potential difference across the membrane
A sled with a mass of 8.00 kg moves in a straight line on a frictionless horizontal surface. find the force acting on the sled
A uniform solid disk of mass m = 3.05 kg and radius r = 0.200 m rotates about a fixed axis perpendicular to its face with angular frequency 5.97 rad/s. Calculate the magnitude of the angular momentum of the disk
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