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Four 7.5 kilogram spheres are placed at the corners of a square of side 0.65 meter.
(a) Find the magnitude of the gravitational force exerted on one sphere which is in left and down corner of the square by the other three.
(b) Find what is its direction? Suppose that x-axis is directed to the right.
an air-filled parallel plate capacitor with a plate spacing of 1.20 cm has a capacitance of 4.20 uf. the plate spacing
question suppose that a weight on a spring has an initial position of s0-5 inches and a period of p2 seconds. find a
Shaving/makeup mirrors typically have one flat and one concave(magnifying) surface. You find that you can project a magnified image of a lightbulb onto the wall of your bathroom if you hold themirror 1.6 m from the bulb and 3.8 m from the wall.
What is the velocity of the beam of electrons that go undeflected when passing during perpendicular electric and magnetic fields of magnitude 4700 V/m and 3.6×10-3 T, correspondingly.
A string provides a horizontal force which acts on a 500 N rectangular block at top right-hand corner. The length on top of block is 0.7m and the length on the side of the block is 1m. If the block slides with constant speed, find the tension in t..
A3.50kg object is attached to a spring and placed on a horizontal, smooth surface. A horizontal force of24.0N is required to hold the object at rest when it is pulled 0.200 m from its equilibrium position.
A 1200-kg car carrying four 88 kg people travels over a "washboard" dirt road with corrugations 4.3 m apart. The car bounces with highest amplitude while its speed is 13 km/h. While the car stops, and people get out, by how much does the car body ..
A small ferryboat is 4.00 m wide and 6.00 m long. When a loadedtruck pulls onto it, the boat sinks an additional 4.90 cm into the water. What is the weight of the truck
A heart pacemaker fires 66 times a minute, each time a 29.0-nF capacitor is charged (by a battery in series with a resistor) to 0.632 of its full voltage
Water (density 1000 kg/m^3) is flowing in a pipeline. At point 1 the water velocity is 5.0 m/s. Point 2 is 3.5 m above point 1. The cross sectional area of the pipe is .060 m^2 at point 1 and .020 m^2 at point 2. What is the Pressure difference P1-P2..
A block of ice with mass 2.00 slides 0.895 down an inclined plane that slopes downward at an angle of 39.5 below the horizontal. what is its final speed
A horizontal wire of length 3.0 m carries a curruent of 6 A and isoriented so that the direction is 50 degrees S of W. The earthsmagnetic field is due north at this point and has a strengthof 0.14 * 10^-4 T. What is the size of the force on the wire?
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