What is the weight of the truck
A ferry boat is 4.2 m wide and 8.7 m long. When a truck pulls onto it, the boat sinks 8.27 cm in the water. What is the weight of the truck? The acceleration of gravity is 9.81 m/s2 .
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Find the rms speed of H2, helium atoms, and N2 at room temperature. Compare this to the escape speed from the earth. (b). At what temperature would the rms speeds be equal to the escape speed from the planet earth?
A 1.0--tall vertical tube is filled with 20 water. A tuning fork vibrating at 574 is held just over the top of the tube as the water is slowly drained from the bottom.
A 250 g block hangs from a spring with spring constant 9.0 N/m. At t=0;{rm s} the block is 17 cm below the equilibrium point and moving upward with a speed of 116 cm/s. What is the block's oscillation frequency?
The distance between two telephone poles is 48.0 m. When a 0.600 kg bird lands on the telephone wire midway between the poles, the wire sags 0.200 m. Draw a free-body diagram of the bird. (Do this on paper. Your instructor may ask you to turn in t
The maximum applied force of compression that one man's thighbone can endure without breaking is 6.50 104 N. The minimum effective cross-sectional area of the bone is 4.30 10-4 m2, its length is 0.59 m, and Young's modulus is Y = 9.4 109 N/m.
A 1.4 kg object at x = 2.00 m, y = 3.10 m moves at at an angle 45° north of east. Calculate the magnitude of the object's angular momentum about the origin.
(a) what is the rate at which energy is transferred by heat through the glass? (b) how much energy is lost through the window in one day assuming the temperatures inside and outside remain constant?
Consider an object with s = 12; rm cm that produces an image with s' = 15; rm cm. Note that whenever you are working with a physical object, the object distance will be positive (in multiple optics setups, you will encounter "objects" that are act
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