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How would you weigh a plane without scales?
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Why do people tend to weigh less in the morning than at night?
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Mass and weight _____. a) are exactly equal b) both measure the same thing c) are two differeent quantities d) are both measured in kilograms
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A skier starts at the top of a very large frictionless snowball with a very small initial speed and skis down the side. a) Draw a free body diagram of the forces on the skier as she slides? b) at what angle alpha does she lose contact with the snowball?
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A twin-sized air mattress used for camping has dimensions of 100 cm by 200 cm by 15 cm when blown up. The weight of the mattress is 2 kg. How heavy a person could the air mattress hold if it is placed in freshwater?
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How much does a 100 ml beaker weigh?
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What is the average weight of a human being?
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A 38.3-kg crate rests on a horizontal floor, and a 74.7 kg person is standing on the crate. Determine the magnitude of the normal force that (a) the floor exerts on the crate and (b) the crate exerts
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What is the mass (kg) and weight (lbs) of a lead brick if it has dimensions 6 cm x 5 cm x 18 cm, and the density of lead is 11.4 g/cm3?
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A glass cylinder with a diameter 12 cm has initial water level at 120 cm.When a ball is totally immersed in it,the water level rises to 135 cm.What is the volume of the ball immersed?
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You are holding onto a 100 kg basket of fish hanging over the side of a boat. What is the minimum force in Newtons you need to exert to keep the basket from falling back down into the ocean?
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What weighs more, a pound of feathers or a pound of gold?
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Which is stronger: magnetism or gravity?
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(a) What is the weight of a 5.78 kg backpack at the surface of the Earth? (b) What is the weight of the same backpack at the surface of the Moon where the acceleration due to gravity is only 1.6 m/s^2?
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The total curb weight of a toyota tundra truck, a ford mustang car, and a smart for two car is 11,150 lbs. the weight of a mustang is 5 lb less than the weight of two smart for two cars. the tundra weighs 2135 lb more that the mustang. what is the curb we
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On a planet A, a box of chocolates weights 3.00 N. If the box takes 3.50 s to reach the ground when dropped from a height of 18.5 m , calculate the weight of the box on the earth.
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Which of the following statements are TRUE for both weight and mass? (A) Weight is a force, and mass is a measure of inertia. (B) Mass depends on gravity, and weight does not. (C) Mass and weight are vectors. (D) Gravity is necessary to measure both weigh
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If I weigh 120 pounds on Earth, what is my mass?
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In a sporting goods store, you see what appears to be two identical life preservers of the same size. One is filled with styrofoam and the other one is filled with lead pellets. If you submerge these
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What would happen to your mass and weight on the moon?
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What is the mass and weight of 1420 lb of snowmobile and 412 kg of a heat pump?
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A 110,000 tons aircraft carrier can float on water, so a 0.1 kg steel ball will (a) Of course float on water (b) Sink into water (c) Float on water or sink into water depends on the ball is on the southern hemisphere or northern hemisphere
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The mass of a certain elephant is 5,167 kg. (a) Find the elephant’s weight in newtons. (b) Find its weight in pounds.
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You’re riding a Ferris wheel while sitting on a scale. A Ferris wheel with radius 9.3m has period 38s. Part A: Find the scale reading for a 75kg person at the bottom of the Ferris wheel, assuming a constant rotation rate. Part B: Find the scale reading
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If a rock weighs 2 pounds on Mars, how much does the rock weigh on Earth?
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Jim weighs 30 pounds less than Tom, and together they weigh 210 pounds. Let n be Tom’s weight in pounds. What would be the equation that expresses the total of Jim’s and Tom’s weights?
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If you jump barefooted on a hard surface, your legs get injured. However, they are not injured if you jump on a soft surface like sand or a pillow. Explain.
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Explain the difference between weight and mass.
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How are gravity and weight related?
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The ski slopes at Bluebird Mountain make use of tow ropes to transport snowboarders and skiers to the summit of the hill. One of the tow ropes is powered by a 22-kW motor which pulls skiers along an icy incline of 14 deg at a constant speed. Suppose that
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An astronaut has a mass of 70 kg. a. What is the weight of the astronaut on Earth at sea level? b. What are the mass and the weight of the astronaut on the Moon, and on Mars? c. What is the ratio of the pressure exerted by the astronaut’s shoe on Earth
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By how many newtons does the weight of a 100-kg person change when he goes from sea level to an altitude of 5000 m? (The mean radius of the Earth is 6.38 times 10^6 m.) a. 3.6 N. b. 5.2 N. c. 1.6 N. d. 0.6 N. e. 2.6 N.
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