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- What if the perpendicular distance from the axis is infinity?The distance between the Moon and the Earth is 384,500 km. The period of the Moon’srotation is 27.3 days (a lunar month). Assume the orbit of the moon around the Earth can beapproximated by uniform circular motion. Use just this information and assumptions toestimate (a) The angular speed of the Moon around Earth. (b) The speed of the Moon (c)The centripetal acceleration of the moonASAP
- The planet Mars has two moons, phobos and delmos. (1) phobos has a period 7 hours, 39 minutes and an orbital radius of 9.4 × 10 km . Calculate the mass of mars. (ii) Assume that earth and mars move in circular orbits around the sun. with the martian orbit being 1: 52 times the orbital radius of the earth. What is the length of the martian year in days?An undiscovered planet, many lightyears from Earth, has one moon in a periodic orbit. This moon takes 1810 × 103 seconds (about 21 days) on average to complete one nearly circular revolution around the unnamed planet. If the distance from the center of the moon to the surface of the planet is 255.0 × 106 m and the planet has a radius of 3.30 × 106 m, calculate the moon's radial acceleration ?cac.A newly discovered planet is in a circular orbit around a distant star with an orbital period of 325 Earth days. The planet also rotates on its axis, making one full rotation every 2.50 Earth days. The radius of the planet is rp = 8.00 ✕ 106 m and the radius of the planet's orbit about the star is rs = 4.50 ✕ 1011 m.Determine the ratio of the radial acceleration, due to the rotation of the planet, of an object at the equator of the planet (acp) to the radial acceleration of the planet in its orbit about the star (acs).
- A race-car starts at the 3 o’clock position and drives counterclockwise on a circular track with a radius 4 miles. a/ What distance (in miles) has the race-car traveled if the angle swept out by the race-car is: (i). 90◦ (degree)? (ii). 5 radians? b/ What is the angle measure (in radians) swept out if the race-car has traveled 4 miles counterclockwise? c/ What does it mean about the path of the car for the angle measure to be greater than 4π radians? Explain.Moon’s orbit around the Earth is approximately circular, with a mean radius of 3.85x108 m. It takes 27.3 days for the Moon to complete one revolution around the Earth. Find:a) the mean orbital speed of the Moon.b) its centripetal acceleration.You wish to place a spacecraft in a circular orbit around the earth so that its orbital speed will be 4.00 * 10^3 m/s. What are this orbit’s (a) radius, (b) altitude above the earth’s surface, and (c) period (in hours)?
- tion 3 of 8 > Maan Leaming A newly discovered planet has a mean radius of 1350 km. A vehicle on the planet's surface is moving in the same direction as the planet's rotation, and its speedometer reads 137 km/h If the angular velocity sy of the vehicle about the planet's center is 1.33 times as large as the angular velocity oy of the planet, what is the period 7 of the planet's rotation in hours? Now the vehicle revenes direction What spool the vehicle hus, a messed by the poolino, in under to have an angalar velocity that is equal T= ON 82.35 103 Attempt 2If the radius of the earth is 6400 km, then the linear speed of a point on the equator will be nearly; (a) 200 km / hr (c) 1675 km / hr (b) 600 km/hr (d) 2000 km/hrAn undiscovered planet, many lightyears from Earth, has one moon in a periodic orbit. This moon takes 1810 × 103 seconds (about 21 days) on average to complete one nearly circular revolution around the unnamed planet. If the distance from the center of the moon to the surface of the planet is 255.0 × 106 m and the planet has a radius of 3.30 × 106 m, calculate the moon's radial acceleration ?c.