A helium balloon floats in midair, without climbing or lowering. Is it in balance? What forces are at work on it?
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Q: e adjoining figure, two blocks of masses 3 kg and 5 kg are hung from an 80-cm stick hose mass…
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Q: 7. Tarzan prepares to swing and much to his dismay, gets his loincloth stuck on a branch. He's left…
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Q: A uniform meter stick is in equilibrium at the 61.3 cm mark with a mass of 50.0 g hung at the 90.0…
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Q: L GAS A 45.0 kg sign hangs at the end of a bar where L = 3.10 meters in length. A cable attaches to…
A: Given: The mass of the GAS is 45 kg. The mass of the bar is 13 kg. L = 3.1 m h = 2.7 m
Q: At small scales, viscous drag becomes very important. To a paramecium (shown), a singlecelled animal…
A: The force that is acting horizontally on it is the drag force,
Q: At takeoff a commercial jet has a 45.0 m/s speed. Its tires have a diameter of 0.550 m. (c) With…
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Q: 17. An 100 kg block dangles from the knot formed by 2 strings suspended from the ceiling at angle of…
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Q: If the coefficient of friction between the steel wedge and the moist fibers of the newly cut stump…
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Q: An object is not necessary in equilibrium when £F= 0. Give a real life example of when this would be…
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Q: After an unfortunate accident occurred at a local warehouse, you were contracted to determine the…
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Q: What will happen when the supports are removed from this system? kg kg 1.75 1.5 1.25 1 0.75 0.5…
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Q: A 12m long post is bolted to the wall on its left end. It's right end is held horizontal by a wire…
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Q: If the coefficient of friction between the steel wedge and the moist fibers of the newly cut stump…
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- A 550 g squirrel with a surface area of 920 cm2 falls from a 5.6-m tree to the ground. Estimate its terminal velocity. (Use the drag coefficient for a horizontal skydiver. Assume that the squirrel can be approximated as a rectanglar prism with cross-sectional area of width 11.5 cm and length 23 cm. Note, the squirrel may not reach terminal velocity by the time it hits the ground. Give the squirrel's terminal velocity, not it's velocity as it hits the ground.) What will be the velocity of a 55.0 kg person hitting the ground, assuming no drag contribution in such a short distance?L GAS A 48.0 kg sign hangs at the end of a bar where L = 3.10 meters in length. A cable attaches to the end of the horizontal bar and to a wall 2.60 meters above where the bar is attached to the wall. The bar has a mass of 12-kg. What is the tension in the cable? Give your answer in Newtons to 3 significant figures (no decimal places in this case).6 cm 0 2 cm 2 cm 4 cm 2 cm 6 cm Determine the coordinate of the center of gravity of the object as shown in the figure below.
- A meter stick is supported by a knife-edge at the 50-cm mark. You hang masses of 0.40 kg and 0.60 kg from the 20-cm and 80-cm marks, respectively. Where should you hang a third mass of 0.30 kg to keep the stick balanced?A long, uniform 2 kg rod of length 1.8 m is supported at the left end by a horizontal axis into the page and perpendicular to the rod, as shown. The right end is connected to the ceiling by a thin vertical thread so that the rod is horizontal. Thread 1.8 m Horizontal Аxis 2 kg Determine the magnitude of the force ex- erted on the rod by the axis. The acceleration of gravity is 9.8 m/s² , and the moment of in- ertia of the rod about the axis at the end of the rod is 3 Answer in units of N.A meter stick is hanging from the ceiling at the 50 cm marker, perfectly in balance.. A 10 kg mass is tied to the meter stick at the 70 cm marker. A 10 kg mass is tied to the meter stick at the 80 cm marker. Where should a 20 kg mass be placed to maintain equilibrium? 25 cm 10 cm 20 cm 35 cm
- A cargo ship is loading using a boom crane, which is a 15 m long pole with a cable for lifting cargo which is suspended from the end of the pole. The boom is raised via a cable attached at a point that is 2/3 of the distance to the end of the pole. At one point the crane is lifting an 900 kg crate with the pole making a 30 degree angle with the horizontal, while the cable makes a 40 degree angle with the horizontal. Estimate the tension on the cable.A 4 m long horizontal uniform beam of mass 20 kg is supported by a wire as shown in the figure. The wire makes an angle of 23 degrees with the beam. Attached to the beam 1.2 m from the wall is a ball with a mass of 48 kg. What is the tension in the string? K 0 (m)What will happen when the supports are removed from this system? 20 kg 30 kg 2 1.75 1.5 1.25 0.75 0.5 0.25/ 0.25 0.5 0.75 1 1.25 1.5 1.75 2 Meters Meters A
- A 7-kg mass (m1) hangs from a cord that runs through a pulley and back down to attach to a 6-kg mass (m2) that is hanging from the other side. The pulley has a mass of 5.00-kg and a diameter of 20-cm. Find: A) the tension in the cord supporting m1 and the tension in the cord supporting m2; B) the tension in the cord supporting the pulley. C) Why is the answer to B) not equal to the sum of tensions in A)? Why is it not equal to the sum of the three weights?Given answer step by step with all detailsAt takeoff a commercial jet has a 45.0 m/s speed. Its tires have a diameter of 0.550 m. (c) With what force must a determined 10-15 kg bacterium cling to the rim? ____________N