3. Imagine a bucket of water moving in a vertical circular path at a constant speed.a. Is the velocity of the bucket constant? Explain...b. What forces are acting on the water in the bucket?C. What force keeps the water in the bucket?4. Imagine a satellite going around earth at a constant speed.a. Is the velocity of the satellite constant? Explain...b. What forces are acting on the satellite?C. What happens if the velocity of the satellite slows?5. Imagine a car going around a flat circular curve at a constant speed.a. Is the velocity of the car constant? Explain ..b. What forces are acting on the car in the curve?

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Description: 3. Imagine a bucket of water moving in a vertical circular path at a constant speed.a. Is the velocity of the bucket constant? Explain...b. What forces are acting on the water in the bucket?C. What force keeps the water in the bucket?4. Imagine a sa

While bucket is revolving ,there is a constant gravitational force on the bucket = mg ,m being…

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3. Imagine a bucket of water moving in a vertical circular path at a constant speed. a. Is the velocity of the bucket constant? Explain... b. What forces are acting on the water in the bucket? C. What force keeps the water in the bucket?

3. Imagine a bucket of water moving in a vertical circular path at a constant speed. a. Is the velocity of the bucket constant? Explain... b. What forces are acting on the water in the bucket? C. What force keeps the water in the bucket?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter6: Applications Of Newton’s Laws Of Motion

Section: Chapter Questions

Problem 57PQ: When a star dies, much of its mass may collapse into a single point known as a black hole. The...

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Three billiard balls, the two-ball, the four-ball, and the eight-ball, are arranged on a pool table as shown in Figure P7.26. Given the coordinate system shown and that the mass of each ball is 0.150 kg, determine the gravitational field at x=2m, y=0.
When a star dies, much of its mass may collapse into a single point known as a black hole. The gravitational force of a black hole on surrounding astronomical objects can be very great. Astronomers estimate the strength of this force by observing the orbits of such objects around a black hole. What is the gravitational force exerted by a black hole on a 1-solar-mass star whose orbit has a 1.4 1010 m radius and a period of 5.6 days?
Unreasonable Results (a) Based on Kepler's laws and information on the orbital characteristics of the Moon, calculate the orbital radius for an Earth satellite having a period of 1.00 h. (b) What is unreasonable about this result? (c) What is unreasonable or inconsistent about the premise of a 1.00 h orbit?
(a) What is the acceleration due to gravity on the surface of the Moon? (b) On the surface of Mars? The mass of Mars is 6.4181023 kg and its radius is 3.38106 m.
Planetary orbits are often approximated as uniform circular motion. Figure P7.9 is a scaled representation of a planets orbit with a semimajor axis of 1.524 AU. a. Use Figure P7.9 to find the ratio of the Suns maximum gravitational field to its minimum gravitational field on the planets orbit. b. What is the ratio of the planets maximum speed to its minimum speed? c. Comment on the validity of approximating this orbit as uniform circular motion.
(a) Find the magnitude of the gravitational force between a planet with mass 7.50 1024 kg and its moon, with mass 2.70 1022 kg, if the average distance between their centers is 2.80 108 m. (b) What is the acceleration of the moon towards the planet? (c) What is the acceleration of the planet towards the moon?
Saturns ring system forms a relatively thin, circular disk in the equatorial plane of the planet. The inner radius of the ring system is approximately 92,000 km from the center of the planet, and the outer edge is about 137,000 km from the center of the planet. The mass of Saturn itself is 5.68 1026 kg. a. What is the period of a particle in the outer edge compared with the period of a particle in the inner edge? b. How long does it take a particle in the inner edge to move once around Saturn? c. While this inner-edge particle is completing one orbit abound Saturn, how far around Saturn does a particle on the outer edge move?
Figure P7.45 shows a picture of American astronaut Clay Anderson experiencing weightlessness on board the International Space Station. a. Most people have the misconception that a person in a spacecraft is weightless because he or she is no longer affected by gravity. Show that this premise cannot be true by computing the gravitational field of the Earth at an altitude of 200 km the typical altitude of a spacecraft in orbit. Compare this result with the gravitational field on the surface of the Earth. b. Why would astronauts in orbit experience weightlessness even if they are experiencing a gravitational field (and therefore a gravitational force)?
3. The gravitational field strength at some position far above the earth is 8.2 N/kg. a. What force will act on the following masses, at this position? 1. 2.0 kg II. III. 500.0 kg How far from the centre of the earth is this position? What is the altitude of this position? 4. An astronaut is on a rotating space station with a radius of 2.0 x 10² m. What speed of the astronaut and period of rotation will make the astronaut feel as if she is experiencing her normal earth weight?
a. A satellite orbits a planet at 7000m/s in 100 minutes. What is the mass of the planet? b. What is the gravity on a planet that has twice the mass of earth and half the radius?
4. Imagine a satellite going around earth at a constant speed. a. Is the velocity of the satellite constant? Explain ... b. What forces are acting on the satellite? C. What happens if the velocity of the satellite slows?
Turksat 5A Satellite is launched in a circular orbit 700 km above the earth's surface. a. How long does it take the satellite to make one orbit b. What is the speed (km/s) of the Turksat 5A in this orbit?