An air puck with a mass of 0.26 kg is tied to a string and moves at a constant speed in a circle of radius 1.2 m. The other end of the string goes through a hole in the air table and straight down to a suspended mass of 0.68 kg, which hangs at rest. Calculate the speed of the air puck. (Hint :- F. = mv /r and F centripetal force on m¡ ; Fc = Fg m¡V/r = m2g) mg; the gravitational force on m2 and m, = 0.26 kg m, = 0.68 kg

An air puck with a mass of 0.26 kg is tied to a string and moves at a constant speed in a circle of radius 1.2 m. The other end of the string goes through a hole in the air table and straight down to a suspended mass of 0.68 kg, which hangs at rest. Calculate the speed of the air puck. (Hint :- F. = mv /r and F centripetal force on m¡ ; Fc = Fg m¡V/r = m2g) mg; the gravitational force on m2 and m, = 0.26 kg m, = 0.68 kg

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter13: Universal Gravitation

Section: Chapter Questions

Problem 13.36P

See similar textbooks

Similar questions

Your starship, the Aimless Wanderer, lands on the mysterious planet Mongo. As chief scientist-engineer, you make the following measurements: A 2.50 kg stone thrown upward from the ground at 12.0 m/s returns to the Part A ground in 5.70 s; the circumference of Mongo at the equator is 2.00 x 105 km; and there is no appreciable atmosphere on Mongo. The starship commander, Captain Confusion, asks for the following information: What is the mass of Mongo? Express your answer with the appropriate units. HA m = Value Units Part B If the Aimless Wanderer goes into a circular orbit 40,000 km above the surface of Mongo, how many hours will it take the ship to complete one orbit? Express your answer in hours to three significant figures. t =
At the Sun’s surface, the gravitational force between the sun and a 5.00 kg mass of hot gas has a magnitude of 1370 N. Assuming that the sun is spherical and has a mass of 2 x 1030 kg, what is the sun’s mean radius?
Imagine a particular exoplanet covered in an ocean of liquid methane. At the surface of the ocean, the acceleration of gravity is 4.60 m/s2, and atmospheric pressure is 8.00 ✕ 104 Pa. The atmospheric temperature and pressure on this planet causes the density of the liquid methane ocean to be 415 kg/m3. (a) What force (in N) is exerted by the atmosphere on a disk-shaped region 2.00 m in radius at the surface of the ocean? _____N (b) What is the weight, on this exoplanet, of a 10.0 m deep cylindrical column of methane with radius 2.00 m? (Enter your answer in N.) _____N (c) What is the pressure (in Pa) at a depth of 10.0 m in the methane ocean? _____Pa
Imagine a particular exoplanet covered in an ocean of liquid methane. At the surface of the ocean, the acceleration of gravity is 8.00 m/s2, and atmospheric pressure is 8.80 ✕ 104 Pa. The atmospheric temperature and pressure on this planet causes the density of the liquid methane ocean to be 415 kg/m3. (a) What force (in N) is exerted by the atmosphere on a disk-shaped region 2.00 m in radius at the surface of the ocean? N (b) What is the weight, on this exoplanet, of a 10.0 m deep cylindrical column of methane with radius 2.00 m? (Enter your answer in N.) N (c) What is the pressure (in Pa) at a depth of 10.0 m in the methane ocean?
The radius Rhand mass Mh of a black hole are related by Rh = 2GMh/c2, where c is the speed of light. Assume that the gravitational acceleration agof an object at a distance ro= 1.001Rh from the center of a black hole is given by ag = G M / r2 (it is, for large black holes).(a) In terms of Mh, find ag at ro.(c) What is ag at rofor a very large black hole whose mass is 1.69 × 1015 times the solar mass of 1.99 × 1030 kg?(d) If an astronaut with a height of 1.73 m is at rowith her feet toward this black hole, what is the difference in gravitational acceleration between her head and her feet ahead-afeet?
Your starship, the Aimless Wanderer, lands on the mysteriousplanet Mongo. As chief scientist-engineer, you make the followingmeasurements: A 2.50 kg stone thrown upward from the ground at12.0 m/s returns to the ground in 4.80 s; the circumference of Mongoat the equator is 2.00 * 10^5 km; and there is no appreciable atmosphereon Mongo. The starship commander, Captain Confusion, asksfor the following information: (a) What is the mass of Mongo? (b) If theAimless Wanderer goes into a circular orbit 30,000 km above the surfaceof Mongo, how many hours will it take the ship to complete one orbit?
Imagine a particular exoplanet covered in an ocean of liquid methane. At the surface of the ocean, the acceleration of gravity is 7.00 m/s², and atmospheric pressure is 8.60 x 104 Pa. The atmospheric temperature and pressure on this planet causes the density of the liquid methane ocean to be 415 kg/m³. (a) What force (in N) is exerted by the atmosphere on a disk-shaped region 2.00 m in radius at the surface of the ocean? N (b) What is the weight, on this exoplanet, of a 10.0 m deep cylindrical column of methane with radius 2.00 m? (Enter your answer in N.) (c) What is the pressure (in Pa) at a depth of 10.0 m in the methane ocean? Pa
The radius Rhand mass Mh of a black hole are related by R₁ = 2GM₁/c², where c is the speed of light. Assume that the gravitational acceleration as of an object at a distance r= 1.001Rh from the center of a black hole is given by ag = GM/r² (it is, for large black holes). (a) In terms of Mh, find ag at ro. (b) Does sag at ro increase or decrease as M₁ increases? (c) What is ag at ro for a very large black hole whose mass is 1.54 × 10¹3 times the solar mass of 1.99 × 10³⁰ kg? (d) If an astronaut with a height of 1.66 m is at råwith her feet toward this black hole, what is the difference in gravitational acceleration between her head and her feet ahead-afeet? (e) Is the tendency to stretch the astronaut severe?
A student is trying to determine the minimum speed, Smin, at which a car of mass m can will catch air when driving over a bump in the road of radius, r, with a coefficient of friction μ. Hint: Solve in terms of variables then plug in. r [m] 7 7 14 21 28 m [kg] 900 1800 900 900 900 Smin [m/s] 00000 1 1 r ||| 4 5 6 7 9
In 2014, the Rosetta space probe reached the comet Churyumov– Gerasimenko. Although the comet’s core is actually far from spherical, in this problem we’ll model it as a sphere with a mass of 1.0 x 1013 kg and a radius of 1.6 km. If a rock were dropped from a height of 1.0 m above the comet’s surface, how long would it take to hit the surface?
10. A woman bails out of an airplane at an altitude of 10,000 ft, falls freely for 20 s, then opens her parachute. How long will it take her to reach the ground? Assume linear air re- sistance pv ft/s², taking p = 0.15 without the parachute and p = 1.5 with the parachute. (Suggestion: First deter- mine her height above the ground and velocity when the parachute opens.)
Imagine a particular exoplanet covered in an ocean of liquid methane, At the surface of the ocean, the acceleration of gravity is 6.00 m/s, and atmospheric pressure is 7.00 x 10 Pa. The atmospheric temperature and pressure on this planet causes the density of the liquid methane ocean to be 415 kg/m. (a) What force (in N) is exerted by the atmosphere on a disk-shaped region 2.00 m in radius at the surface of the ocean? (b) What is the weight, on this exoplanet, of a 10.0 m deep cylindrical column of methane with radius 2.00 m? (Enter your answer in N.) (c) What is the pressure (in Pa) at a depth of 10.0 m in the methane ocean? Need Help? Red