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Two vectors 40N and 30N act at acute angle 3º degrees to each other find the resultant vector using analytical method
A block is hung by a string from the inside roof of a car. When the car goes straight ahead at a speed of 34 m/s, the block hangs vertically down. Find angle θ that the string makes with the vertical
An airplane maintains a speed of 645 km/h relative to the air it is flying through as it makes a trip to a city 745 km away to the north. What time interval is required for the trip if the plane flies through a headwind blowing at 32.1 km/h toward t..
A block of mass 2.90 kilogram is pushed 2.60 meter along a frictionless horizontal table by a constant 16.0 Newton force directed 27.0 degree below the horizontal. Find the work done on the block by the applied force
An object is 23.2 cm from the surface of a refiective spherical Christmas-tree ornament 5.11 cm in radius. What is the apparent position of the image
A student calibrates a constant volume gas thermometer in dry ice (-78.5°C) and in boiling ethyl alcohol (+78.0°C). What value (in °C) does he obtain for absolute zero
A Rope is wrapped around a cylinder with a diameter of 500 cm. When the rope is pulled, it causes the cylinder to rotate around an axis through its center. If the cylinder starts from rest, and the tension in the rope is a constant 20.0 N, what wi..
A metallic sphere has a charge of -9.4 nC. A negatively charged rod has a charge of -5.2 nC. The rod is then placed on the sphere and both objects reach an equilibrium state at which they have the same charge. How many electrons were transferred for ..
The potential in a region between x = 0 and x = 10.0 m is V = b + mx, where b = 20.0 V and m = -6.00 V/m. Find (a) the potential at x = 0, 2.00 m and 5 m and (b) determine the magnitude and direction of the electric field at x = 0, 2.00 m and 5.00..
(a) The power rating of the electric heater and(b) The temperature rise that the air experiences each time it passes through the heater.
White light illuminates an oil film on water. Viewing it directly from above, it looks red. What is the refractive index of the oil
The density of ice is 917 kg/m3, and the density of sea water is 1025 kg/m3. What is the weight of the heaviest bear that the ice can support without sinking completely beneath the water
A 0.00893-kg bullet is fired straight up at a falling wooden block that has a mass of 1.80 kg. The bullet has a speed of 551 m/s when it strikes the block. The block originally was dropped from rest from the top of a building and had been falling for..
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