What is the escape speed from a 300-km-diameter asteroid with a density of 2500 kg/m3?
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What is the escape speed from a 300-km-diameter asteroid
with a density of 2500 kg/m3?
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- Calculate the escape speed from the Solar System, starting from Earth’s orbit. Assume that the Sun constitutes all of the mass of the Solar System.Large meteors sometimes strike the earth , converting most of their kinetic energy into thermal energy. what is the kinetic energy of a 10^9 kg meteor moving at 25.0 km/s?A baseball is forcefully shot straight up into the air, reaching 21 meters off the ground. If the baseball is 0.15kg, what is its gravitational potential energy when it reaches max height?
- A 4.0 kg object is raised 7 meters above the ground (on the earth). How high would the object have to be raised above the surface of the moon (g = 1.6 N/kg) to have the same amount of potential energy. Use gEhE=gMhMA car of mass 1800 kilograms passes over a hill that has an arc with a radius of 42 meters. If the car is moving with a speed of 16 meters / second at the top of the hill, what g-force does the car experience?A 1 kg satellite is to be placed at 3.55e7 meters above the earth's surface. What is the difference in potential energy between Earth's surface and the satellite height for a satellite with 1 kg mass? What is the total work needed to place the satellite in orbit at this location above earth?
- when we calculate escape speeds, we usually do so with the assumption that the object from which we are calculating escape speed is isolated. This is, of course, generally not true in the solar system. Show that the escape speed at a point near a system that consists of two stationary massive spherical objects is equal to the square root of the sum of the squares of the escape speeds from each of the two objects considered individually.6:36 1 A space probe is to be placed in a circular orbit of radius 4000 km about the planet Mars. As the probe reaches A the point of its original trajectory closest to Mars, it is inserted into a first elliptic transfer orbit by reducing its speed. This orbit brings it to Point 8 with a much reduced velocity. There the probe is inserted into a second transfer orbit by further reducing its speed. Knowing that the mass of Mars is 0.1074 times the mass of the earth, that rA 9004 km and rg- 180 004 km, and that the probe approaches A on a parabolic trajectory, determine the time needed for the space probe to travel from A to Bon its first transfer orbit. Apph traretry Seend trader cta Fint tranfer The time needed for the space probe to travel from A to Bon its first transfer orbit is OhA 6 kg object is launched straight up. When it is 100 m high it has a speed of 40 m/s. What is the object's speed when it is 20 m high? Ignore air resistance and use g = 10 m/s/s.