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When calculating the gravity using a concial pendulum, we used the equation g = Vt2/R tanθ where the tangential velocity Vt = (0.63 x 0.01) m/s, radius R = (0.175 x1 0.01) m, and θ = 12.33o. If we found theta with θ = tan-1(0.175±0.01)m/(0.80±0.01)m, what is the absolute error of the angle and of the experimental value of gravity?
A parallel-plate capacitor has an area of 2.0cm^2, and the plates are separated by 2mm.
A horizontal pipe contains water at a pressure of 120 kPa flowing with a speed of 1.5m/s. The pipe narrows to one-half its original diameter, Calculate what is the pressure of the water
A 15g rifle bullet traveling 220 m/s buries itself in a 3.5 kg pendulum hanging on a 2.7 m long string, which makes the pendulum swing upward in an arc. Determine the horizontal component of the pendulum's displacement.
Starting from one oasis, a camel walks 25 km in a direction of 30 degrees south of west and then walks 30 km toward the north to a second oasis. What is the direction from the first oasis to the second oasis?
Three point charges have equal magnitudes, two being positive and one negative. These charges are fixed to the corners of an equilateral triangle. The magnitude of each of the charges is 5.0 microC and the lengths are 3.0 cm. Calculate the magnitu..
A lamp (R = 148 ), an electric heater (R = 23 ), and a fan (R = 48 ) are connected in parallel across a 117 V line. What is the voltage across the fan
a man in a tree fort 7 m above the ground. He throws a water balloon at a speed of 3m/s at a downward angle of 17 degree below the horizontal at another man 5 m from the base of the tree fort
A resting adult of average size converts chemical energy infood into internal energy at the rate of 120 W, called herbasal metabolic rate. Calculate the rate at which you lose energy by exhaling humid air
A flashlight bulb with a potential difference of 6.0 V across it has a resistance of 8.5 W. How much current is in the bulb filament
A 5.4kg object is suspended by a string from the ceiling of anelevator. The acceleration of gravity is 9.8m/s^2. Determine the tension in the string if it is accelerating upward at a rate of 3.8m/s^2.
When striking, the pike, a predatory fish, can accelerate from rest to a speed of 3.7 m/s in 0.11 s. How far does the pike move through this strike?
A long horizontal wire carries 24 A of current due north. What is the net magnetic field 22 cm due west of the wire if the Earth's field there points downward, 42° below the horizontal, What is the magnitude of the net magnetic field 22.0cm due wes..
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