H. w // Prove physical equations that the Earth is spherical (Note: the answer must be equations only)
Q: 11. A truck (m = 2700 kg) is passing the middle of a bridge whose radius of curvature is 350 meters.…
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Q: EXERCISE A solid metal sphere of diameter D is spinning in a gravity-free region of space with an…
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Q: A star rotates in a circular orbit about the center of its galaxy. The radius of the orbit is 4.8 x…
A: Given data: Radius of orbital (r) = 4.8×1020 m Angular speed (ω) = 8.1×10-15 rad/s Required: The…
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Q: Il The International Space Station is in a 250-mile-high orbit. What are the station's orbital…
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Q: 5. Jupiter orbits the Sun with speed 2079 m/s at an average distance of 71 398 000 m from the Sun.…
A: Given : Speed, V = 2079 m/s Distance, R= 71398000 m Mass, M = 1.90 × 1027 Kg Find : Angular…
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Q: A number of gas giant planets orbiting other stars at distances less than 1 A.U. have been…
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Q: .) If the aliens promptly left the surface of the Earth and entered orbit (at a radius of 6800 km…
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Q: Problem 3 Angular Momentum (a) At some point a star runs out of the fuel needed to produce radiation…
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Q: The figure shows a spherical hollow inside a lead sphere of radius R = 4.8 m; the surface of the…
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Q: Enter an expression for the radius of the spaceship’s orbit. b. Calculate the orbital radius in…
A: Given, Time rotation period of the planet, T=31 hours The mass of the planet, M=2.1*1025Kg
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- Formation of a Neutron Star A star rotates with a period of 33 days about an axis through its center. The period is the time interval required for a point on the star's equator to make one complete revolution around the axis of rotation. After the star undergoes a supernova explosion, the stellar core, which had a radius of 2.0 x 10 km, collapses into a neutron star of radius 6.3 km. Determine the period of rotation of the neutron star. SOLUTION Conceptualize The change in the neutron star's motion is similar to that of the skater described earlier in the textbook, but in the reverse direction. As the mass of the star moves doser to the rotation axis, we expect the star to spin ---Select--v. Categorize Let us assume that during the collapse of the stellar core, (1) no external torque acts on it, (2) it remains spherical with the same relative mass distribution, and (3) its mass remains constant. We categorize the star as ---Select-- v system in terms of angular momentum. We do not know…8. One radian equals approximately Your answer 9. If a 14 kg box is raised to a height of 4.0 m on Earth, what is its gravitational potential energy relative to the ground? Your answer Submit Never submit passwords through Google Forms. This form was created inside of Newport News Public Schools. Report Abuse29. Use concepts from the previous problem to find the speed of Pluto at each extreme of its orbit about the Sun – distance varying from 4.44 × 1012 m to 7.38 × 1012 m. Hint: use a system of equations based on conservation of energy and angular momentum.
- Formation of a Neutron Star A star rotates with a period of 32 days about an axis through its center. The period is the time interval required for a point on the star's equator to make one complete revolution around the axis of rotation. After the star undergoes a supernova explosion, the stellar core, which had a radius of 1.1 x 10“ km, collapses into neutron star of radius 3.6 km. Determine the period of rotation of the neutron star. SOLUTION Conceptualize The change in the neutron star's motion is similar to that of the skater described earlier in the textbook, but in the reverse direction. As the mass of the star moves closer to the rotation axis, we expect the star to spin faster Categorize Let us assume that during the collapse of the stellar core, (1) no external torque acts on it, (2) it remains spherical with the same relative mass distribution, and (3) its mass remains constant. We categorize the star as an isolated v system in terms of angular momentum. We do not know the…If the earth warms significantly, the polar ice caps will melt. Water will move from the poles, near the earth’s rotation axis, and will spread out around the globe. In principle, this will change the length of the day. Why? Will the length of the day increase or decrease?2.) A satellite is launched into a circular orbit 40 x 105 m above the surface of the Earth. a. Draw a picture of the situation. b. Find the tangential speed of the satellite. c. Find it's orbital period.
- A 4m board weighing 60 N extends out over the edge of the table with 40% of the board's length off the table. How far beyond the table can a 20N cat walk before the board begins to tilt Meow, O A. 1.2 m О В. 1.5 m о С. 1.1 m O D. 1.4 m O E. None of the above< 8 of 18 Exercise 13.35 an Review I Constants A thin spherical shell has radius rA = 3.00 m and mass mA = 35.0 kg. It is concentric with a second thin spherical shell that has radius TB =7.00 m and mass mg = 60.0 kg Part A What is the net gravitational force that the two shells exert on a point mass of 0.0200 kg that is 2.00 m from the common center of the two shells (inside both shells)? Express your answer with the appropriate units. HÀ ? F= Value Units Submit Request Answer • Part B What is the net gravitational force that the two shells exert on a point mass of 0.0200 kg that is 5.00 m from the common center of the two shells (in the space between the two shells)? Express your answer with the appropriate units. HÀ F = Value Units Submit Request Answer • Part C What is the net gravitational force that the two shells exert on a point mass of 0.0200 kg that is 8.00 m from the common center of the two shells (outside both ahelle2 MacBook Air DII 80 888 F10 F11 F12 F7 esc F3 F4 F5 F6…1. If both the mass and speed of an object are doubled while the radius is decreased by 4x, then the centripetal force is? 2. A 5 kg object has a kinetic energy of 90 Joules. What is the speed of this object? 3. The momentum of a 500 g object is 2000 kg m/s. What is the speed of this object? 4. A ball is thrown straight upward at an initial speed of 70 m/s. What is the acceleration of the object after 13 seconds? 5. An object is thrown straight upward with a speed of 90 m/s. What is the speed of the object after 13 seconds?