Uniform Circular Motion

5. Our sun orbits around the center of our galaxy (the Milky Way) once every 2.5 x 108 years. The radius of the sun's orbit about the center of the galaxy is approximately 3.15 x 102⁰ m. The sun has made only about 20 revolutions since the Earth was formed over 3 billion years ago! The centripetal force keeping our sun in orbit is supplied by the force of gravity. Calculate the mass of the galaxy. Show all work. You are here!

Centripetal force: the inward force that keeps an object moving in a circle. If the centripetal force were removed, the object would fly away from the circle in a straight line that starts from a point tangent to the circle 1. What will happen to an object moving in a circle if the centripetal force was removed ? The formula for centripetal acceleration (a) is: 2. How is centripetal acceleration related to centripetal force ? From Newton's second Law F= ma, the equation 3. Which measurements/variables affect the size of the centripetal acceleration and the centripetal force? Highlight the key points in the text that will answer this question. F. for centripetal force is therefore: = ma = m =mass in kilograms (Kg), V= the speed in meters per second (m/s) r=radius in meters (m).

Experiment on Uniform Circular Motion. Solve and complete the table below. Thank you!

PM2: please answer question and explain each step with reasoning

Learning Goal: To find some of the parameters characterizing an object moving in a circular orbit. The motivation for Isaac Newton to discover his laws of motion was to explain the properties of planetary orbits that were observed by Tycho Brahe and analyzed by Johannes Kepler. A good starting point for understanding this (as well as the speed of the space shuttle and the height of geostationary satellites) is the simplest orbit: a circular one. This problem concerns the properties of circular orbits for a satellite orbiting a planet of mass M. For all parts of this problem, where appropriate, use G for the universal gravitational constant. Part C The potential energy U of an object of mass m that is separated by a distance R from an object of mass M is given by U=-G Mm R What is the kinetic energy K of the satellite? Express your answer in terms of the potential energy U. K = Submit Π ΑΣΦ Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remaining ?

Learning Goal: To find some of the parameters characterizing an object moving in a circular orbit. The motivation for Isaac Newton to discover his laws of motion was to explain the properties of planetary orbits that were observed by Tycho Brahe and analyzed by Johannes Kepler. A good starting point for understanding this (as well as the speed of the space shuttle and the height of geostationary satellites) is the simplest orbit: a circular one. This problem concerns the properties of circular orbits for a satellite orbiting a planet of mass M. For all parts of this problem, where appropriate, use G for the universal gravitational constant. Part A Find the orbital speed v of a satellite in a circular orbit of radius R around a planet of mass M. Express the orbital speed in terms of G, M, and R. ► View Available Hint(s) V = Submit Part B K = Find the kinetic energy K of a satellite with mass m in a circular orbit of radius R around a planet of mass M. Express your answer in terms of m,…

Learning Goal: To find some of the parameters characterizing an object moving in a circular orbit. The motivation for Isaac Newton to discover his laws of motion was to explain the properties of planetary orbits that were observed by Tycho Brahe and analyzed by Johannes Kepler. A good starting point for understanding this (as well as the speed of the space shuttle and the height of geostationary satellites) is the simplest orbit: a circular one. This problem concerns the properties of circular orbits for a satellite orbiting a planet of mass M. For all parts of this problem, where appropriate, use G for the universal gravitational constant. The potential energy U of an object of mass m that is separated by a distance R from an object of mass M is given by U=-G Mm R What is the kinetic energy K of the satellite? Express your answer in terms of the potential energy U. K = Submit Part D T = Find the satellite's orbital period T. Express your answer in terms of G, M, R, and T. ► View…

A workshop grindstone has a radius of 6.5 cm and rotates at 6500 rev/min.Randomized Variables r = 6.5 cmrpm = 6500 rpm part a) Calculate the centripetal acceleration at its edge in multiples of g.  Part b) What is the linear speed of a point on its edge in m/s?

1.Explain in your own words about how gravitational force works between two isolated objects and use this understanding to explain how a satellite can remain at the same place above the surface of the rotating earth.2. In an experiment to study Hooke’s law for solid material, the extension for three different wires A, B and C were obtained for various applied force as shown in TABLE Q3b.a.Consider all the extensions were within the elastic limit. Draw graph of extension against force for each wire and use it to identify which of the wires requires the most work done to extend to 3.8 mm.b.Determine the elastic modulus of each wire and arrange them according to their stiffnesses.

Uniform Circular Motion and Universal Gravitation 1. A 0.50 kg toy car is on a circular table with a 1.9m radius. The car turns in a horizontal circle at 3 revolutions in 18 seconds. a. Calculate the period for the mass b. Calculate the velocity acting on the mass as it circles around. c. Calculate the centripetal Force acting on the mass. d. Calculate the coefficient of friction between the toy car and the table.

1. explain what is meant by an inertial frame of reference, and  whether the earth’s motion around the sun is an inertial frame of reference or not. 2.Why is Newton’s first law used to define an inertial frame of reference?

1. Define centripetal force. 2. What supplies the centripetal force for (a) a satellite in orbit around the Earth and (b) the mass in uniform circular motion in this experiment? 3. An object moving in uniform circular motion is accelerating. How can this be, since uniform motion implies constant motion? 4. For an object in uniform circular motion, on what parameters does the experimental determination of the centripetal force depend when using F 5 ma? 5. How does the centripetal force vary with the radius of the circular path? Consider (a) constant frequency and (b) constant speed. Was this substantiated by experimental results? 6. If the centripetal force on an object in uniform circular motion is increased, what is the effect on (a) the frequency of rotation f (with r constant) and (b) f and r when both are free to vary? 7. Does the centripetal force acting on an object in uniform circular motion do work on the object? Explain.

At what rate must a cylindrical spaceship rotate if occupants are to experience simulated gravity of 0.66 g? Assume the spaceship's diameter is 30 m , and give your answer as the time needed for one revolution (see the figure (Figure 1)). Express your answer using three significant figures and include the appropriate units. ? T = Value Units %3D Figure 1 of 1 Submit Request Answer ( Return to Assignment Provide Feedback

Please solve This multiple choice questions correctly in 15 minutes

Assignment Score: Ex Give Up? O Hint 90% Resources Check Answer Question 19 of 30 > Attempt 3 Artificial gravity is a must for any space station if humans are to live there for any extended length of time. Without artificial gravity, human growth is stunted and biological functions break down. An effective way to create artificial gravity is through the use of a rotating enclosed cylinder, as shown in the figure. Humans walk on the inside edge of the cylinder, which is sufficiently large (radius R) that its curvature is not readily 2R- noticeable to the inhabitants. The space station in the figure is not drawn to scale. Once the space station is rotating at the necessary speed to create an artificial gravitational acceleration equal to the acceleration g at Earth's surface, how long will it take the space station to make one revolution? Express this time t in terms of g and R. t = !!

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23. Consider the following diagram of a red car turning a corner (traveling counter-clockwise): a. Draw the centripetal acceleration and velocity vectors to demonstrate the motion of the car. 10 m b. If the car has a weight of 17,000N and is traveling with a speed of 15 m/s, what centripetal force does it experience? How many "g's" is this car experiencing during this turn? (compare the centripetal acceleration to gravity on Earth, 9.8 m/s^2) 66 с.

4. A student feels a gravity force of 800 N from the Earth when they're sitting in this classroom. a. How big is the gravity force that the Earth feels because of the student? Explain. b. Two students discuss part a) Student 1: "The Earth is much heavier than the student, so its gravity must pull harder on the student than the student's gravity pulls on the Earth. The gravity force the Earth feels must be less than 800 N." Student 2: "That might be true, but I think that same 800 N would have less of an effect on the Earth than it would on a person. Using a = F/m, the acceleration the Earth feels might be very small from an 800 N force, because Earth is so heavy." Which of these students, if any, do you agree with? Justify your response with words and/or equations.

A planet is in a circular orbit around a star – its radius and speed are constant. Which of the following is constant? Which of the following is not constant? Explain why. a.    Kinetic Energyb.    Potential Energyc.    Linear Momentumd.    Angular Momentum

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need help with this question

ESCAPE VELOCITY Determine the mass of the planet that requires an escape velocity of 5,030 m/s to escape its gravitational pull. Radius of the planet is 3,389.5 km. A. 6.39 x 10^23 kg B. 6.42 x 10^23 kg C. 4.26 x 10^23 kg D. Option 2 Describe the potential and kinetic energy of an object, that obtained escape velocity upon launching, in R = ∞. A. PE = 0 | KE = 0 B. PE = 0 | KE = ∞ C. PE = ∞ | KE = ∞ D. PE = ∞ | KE = 0

I am struggling to find where the arrows points go and can you help me figure out where they go and give me a explanation.

Not graded practice questions

Apex Learning - Courses om/public/activity/5000001/assessment 1 Pretest: Unit 5 Question 2 of 32 A satellite with a mass of 200 kg fires its engines to increase velocity, thereby increasing the size of its orbit about Earth. As a result, it moves from a circular orbit of radius 7.5 x 10° m to an orbit of radius 7.7 x 10° m. What is the approximate change in gravitational force from Earth as a result of this change in the satellite's orbit? (Recall that Earth has a mass of 5.97 x 1024 kg and G= 6.67 x 10-11 N•m2/kg².) A. -73 N B. -59 N C. -32 N D. -112 N SUBMIT + PREVIOUS

What happens to the orbital velocity of an object revolving around Earth if we reduce its height to one-fourth of the original one? A. The magnitude of the orbital velocity will be quadrupled. B. The magnitude of the orbital velocity will be doubled. C. The magnitude of the orbital velocity will be reduced by a factor of 4. D. The magnitude of the orbital velocity will be halved. Determine the GPE of a 300kg-object that is 2700km above Jupiter. Mass of Jupiter = 1.898 × 10^27 kg and radius of Jupiter is 69,911 km. A. 3.25 x 10^11 J B. 4.11 x 10^13 J C. 5.23 x 10^11 J D. 1.41 x 10^13 J The handwriting or solutions please make it clear (readable) please thank you

150km CA-3 The space shuttle orbits the earth at an altitude of 150km. It takes 87.3 minutes to complete one orbit. a) Draw a figure showing the earth, the orbit, and the altitude of 150km. b) What is the speed of the shuttle when in orbit? c) What is the centripetal aceleration of the shuttle in orbit? (Identify on your figure the radius of the orbit.) d) Draw a free body diagram for the shuttle in orbit. It is above the atmosphere. R 6.37x10°m

The first linear graph shows that the Force of Gravity depends is directly proportional to the mass of an object at a given location.  The second linear graph shows that the Force of Gravity is proportional to the Inverse Square of the distance between two bodies.  Research Newton’s Universal Law of Gravitation, and explain.

A rock is horizontally thrown from the top of a cliff a height, h, from the surface of Planet Unicorn with a speed, vo. If the top of the of the cliff is a distance, r from the center of the planet and the mass of Planet Unicorn is mp, determine the range of the rock, Ax, in terms of vo, h, r, G, and mp. Hint: Apply projectile motion and gravity defined by a planet's physical properties concepts.

For the following questions, start your analyses by considering at least Newton's Law of Gravitation, centripetal acceleration, Kepler's law or Energy Conservation. Take the Gravitational constant to be a. From Earth we can measure the radius of Mars using our telescopes. An estimate for it is 3.39 x 106 m. By sending an exploratory robot to Mars, we determined the acceleration due to gravity on its surface as 3.73 m/s?. Estimate the mass of Mars. b. The Earth revolves around the Sun once a year at a distance of 1.50 x 1011 m. Estimate the mass of the Sun. c. A rocket is launched straight up from Earth's surface at 2100 m/s. By ignoring air resistance, determine the maximum height it reaches?

A space probe with a mass of 500kg, circles a planet with a radius of 2580 km radius and a mass of 1.35 x 10^23 kg at a heigh above the surface equal to the radius of the planet. A.) what is the acceleration of the probe B.) what is the speed of the probe C.) what is the period of the revolution of the orbit of the probe in hours