Q: A light spring of constant k = 90.0 N/
A light spring of constant k = 90.0 N/m is attached vertically to a table (Fig. P9.87a). A 2.00-g balloon is filled with helium (density = 0.179 kg/m3) to a volume of 5.00 m3 and is then connected to...
See AnswerQ: A u-tube open at both ends is partially filled with
A u-tube open at both ends is partially filled with water (Fig. P9.88a). Oil (p = 750 kg/m3) is then poured into the right arm and forms a column L = 5.00 cm high (Fig. P9.88b). (a) Determine the diff...
See AnswerQ: In about 1657, Otto von Guericke, inventor of the air
In about 1657, Otto von Guericke, inventor of the air pump, evacuated a sphere made of two brass hemispheres (Fig. P9.89). Two teams of eight horses each could pull the hemispheres apart only on some...
See AnswerQ: Oil having a density of 930 kg/m3 floats on water
Oil having a density of 930 kg/m3 floats on water. A rectangular block of wood 4.00 cm high and with a density of 960 kg/m3 floats partly in the oil and partly in the water. The oil completely covers...
See AnswerQ: The fishing pole in Figure P8.3 makes an angle of
The fishing pole in Figure P8.3 makes an angle of 20.0° with the horizontal. What is the magnitude of the torque exerted by the fish about an axis perpendicular to the page and passing thro...
See AnswerQ: A water tank open to the atmosphere at the top has two
A water tank open to the atmosphere at the top has two small holes punched in its side, one above the other. The holes are 5.00 cm and 12.0 cm above the floor. How high does water stand in the tank if...
See AnswerQ: (a) Is it possible to calculate the torque acting on
(a) Is it possible to calculate the torque acting on a rigid object without specifying an origin? (b) Is the torque independent of the location of the origin?
See AnswerQ: Figure CQ9.4 shows aerial views from directly above two dams
Figure CQ9.4 shows aerial views from directly above two dams. Both dams are equally long (the vertical dimension in the diagram) and equally deep (into the page in the diagram). The dam on the left ho...
See AnswerQ: A person stands a distance R from a door’s hinges and pushes
A person stands a distance R from a door’s hinges and pushes with a force F directed perpendicular to its surface. By what factor does the applied torque change if the person’s position and force chan...
See AnswerQ: Many people believe that a vacuum created inside a vacuum cleaner causes
Many people believe that a vacuum created inside a vacuum cleaner causes particles of dirt to be drawn in. Actually, the dirt is pushed in. Explain.
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