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14. Two identical planets orbit a star in concentric circular orbits in the star's equatorial plane....
Two newly discovered planets follow circular orbits around a star in a distant part of the...
Two newly discovered planets follow circular orbits around a star in a distant part of the galaxy. The orbital speeds of the planets are determined to be 43.4 km/s and 57.2 km/s. The slower planet's orbital period is 7.50 years. (a) What is the mass of the star? ______ kg (b) What is the orbital period of the faster planet, in years? _______yr
Problem 1 Planetary Orbits Consider the two-body problem for a planet-star system. The planet, of mass...
Problem 1 Planetary Orbits Consider the two-body problem for a planet-star system. The planet, of mass m, is initially in a circular orbit of radius r and angular speed w about the star, of mass M. (i) What is the gravitational potential energy of the system, U? What is the kinetic energy of the planet, K? What is the total energy of the system, E = K +U? (ii) The star suddenly loses half of its mass, M + M/2....
Two , slides without friction on an inclined plane that makes an angle of ?-370 with...
Two , slides without friction on an inclined plane that makes an angle of ?-370 with the horizontal. The mass of the larger object is given as M-2.2 kg and it hangs on the string If the two objects are released from rest with the string taut, what is their total kinetic energy (in ]) when the object of mass M has fallen 27 cm? Objects are connected by a massless string, as shown in the figure below. The pulley...
Two blocks with mass M1 and M2 are arranged as shown with M sitting on an inclined plane
Two blocks with mass M1 and M2 are arranged as shown with M sitting on an inclined plane and connected with a massless unstretchable string running over a massless, frictionless pulley to M2, which is hanging over the ground. The two masses are released initially from rest. The inclined plane has coefficients of static and kinetic friction μs and μk respectively where the angle θ is small enough that mass M1 , would remain at rest due to static friction if...
[2] A block with mass ma is placed on an inclined plane with slope angle α...
[2] A block with mass ma is placed on an inclined plane with slope angle α and is connected to a second hinging block with mass ma > ma by a massless cord passing over a small frictionless pulley (see figure). The coefficient of kinetic friction between mass mA and the incline is negligible. Initially the masses are at rest, with mass mA at the bottom of the incline and mass mg a height h above the table supporting the...
Please show all work for a high rated answer. Two blocks are attached to one another,...
Please show all work for a high rated answer.
Two blocks are attached to one another, as shown, by means of a massless cord that passes over a massless frictionless pulley. Block 1 (mass m1, = 10.0 kg) is connected to a spring with spring constant k = 100 N/m, and block 2 (mass m2 = 20.0 kg) sits on a frictionless ramp that makes an angle theta = 30.0 degree with the horizontal. The coefficient of kinetic friction between...
(Dynamics Examination) ist 1, S: 4 If a partide moves along a curve with a constant...
(Dynamics Examination) ist 1, S: 4 If a partide moves along a curve with a constant speed, then its tangential component of acceleration is A: zero. B: positive. C. constant D: negative. 2. 单选题的重点 The position, s. is given as a function of angular positione. as s = 10 sin(28). The velocity, v, is A: 20 sin(2) B: 20 cos(20) C: 20 w cos(20) D: 20 w sin(2) 3. S10 The 15-kg disk is pinned at and is initially at...
Question 1 1 pts What is the kinetic energy of a man who weighs 980N who...
Question 1 1 pts What is the kinetic energy of a man who weighs 980N who is riding in a car traveling 40 km per hour? Express your answer in Joules, but don't type the unit in the answer box. Round to the nearest whole number. (Careful with the units) 1 pts Astudent slides her 80.0-kg desk across the level floor of her dormitory room a distance 4.00 m at constant speed. If the coefficient of kinetic friction between the...
Problem 1 Planetary Orbits Consider the two-body problem for a planet-star system. The planet, of mass m, is initially in a circular orbit of radius r and angular speed w about the star, of mass M. (i) What is the gravitational potential energy of the system, U? What is the kinetic energy of the planet, K? What is the total energy of the system, E = K +U? (ii) The star suddenly loses half of its mass, M + M/2....
Two , slides without friction on an inclined plane that makes an angle of ?-370 with the horizontal. The mass of the larger object is given as M-2.2 kg and it hangs on the string If the two objects are released from rest with the string taut, what is their total kinetic energy (in ]) when the object of mass M has fallen 27 cm? Objects are connected by a massless string, as shown in the figure below. The pulley...
[2] A block with mass ma is placed on an inclined plane with slope angle α and is connected to a second hinging block with mass ma > ma by a massless cord passing over a small frictionless pulley (see figure). The coefficient of kinetic friction between mass mA and the incline is negligible. Initially the masses are at rest, with mass mA at the bottom of the incline and mass mg a height h above the table supporting the...
Please show all work for a high rated answer.
Two blocks are attached to one another, as shown, by means of a massless cord that passes over a massless frictionless pulley. Block 1 (mass m1, = 10.0 kg) is connected to a spring with spring constant k = 100 N/m, and block 2 (mass m2 = 20.0 kg) sits on a frictionless ramp that makes an angle theta = 30.0 degree with the horizontal. The coefficient of kinetic friction between...
(Dynamics Examination) ist 1, S: 4 If a partide moves along a curve with a constant speed, then its tangential component of acceleration is A: zero. B: positive. C. constant D: negative. 2. 单选题的重点 The position, s. is given as a function of angular positione. as s = 10 sin(28). The velocity, v, is A: 20 sin(2) B: 20 cos(20) C: 20 w cos(20) D: 20 w sin(2) 3. S10 The 15-kg disk is pinned at and is initially at...
Question 1 1 pts What is the kinetic energy of a man who weighs 980N who is riding in a car traveling 40 km per hour? Express your answer in Joules, but don't type the unit in the answer box. Round to the nearest whole number. (Careful with the units) 1 pts Astudent slides her 80.0-kg desk across the level floor of her dormitory room a distance 4.00 m at constant speed. If the coefficient of kinetic friction between the...
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