Kinetic energy is the energy of motion. How much kinetic energy does a spherical asteroid with...
Kinetic energy is the energy of motion. How much kinetic energy does a spherical asteroid with a 1 km diameter have if it is made out of iron (has a density of about 8 kg m-3) and hits Earth at a relative velocity of 10 km s-1?
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Kinetic energy is the energy of motion. How much kinetic energy
does a spherical asteroid with...
4. Kinetic energy is the energy of motion. How much kinetic energy does a spherical asteroid...
4. Kinetic energy is the energy of motion. How much kinetic energy does a spherical asteroid with a 1 km diameter have if it is made out of iron (has density of about 8 kg m-3) and hits Earth at a relative velocity of 10 km s-1? Convert your answer to megatons of TNT (1 megaton of TNT = 4.18 x 1015 joules).
3questions in total please *Problem 6.66 You stand on a spherical asteroid of uniform density whose...
3questions in total please
*Problem 6.66 You stand on a spherical asteroid of uniform density whose mass is 2.5 x 1016 kg and whose radius is 11 km (11 x 103 m). These are typical values for small asteroids, although some asteroids have been found to have much lower average density and are thought to be loose agglomerations of shattered rocks. You want to figure out how fast you have to throw the rock so that it never comes back...
Assume that the density of an average asteroid is 3.1 kg/L, and that the craters on...
Assume that the density of an average asteroid is 3.1 kg/L, and that the craters on the Moon are roughly 15 times the size of the impacting body. a. What was the diameter of the asteroid that created the 240-km-diameter Clavius crater? D= 16 km Using the density of an average asteroid, calculate the mass of this asteroid. m= *10 15 kg b. Calculate the kinetic energy of this impact if the speed of the asteroid was 22 km/sec relative...
2. A strange spherical asteroid has a density of 5200. kg/m2 with an outer radius of...
2. A strange spherical asteroid has a density of 5200. kg/m2 with an outer radius of 200.0 km, Symmetricalily in the center of the asteroid is a spherical cavity 75.0 km in diameter. A 2500. kg spacecraft from Earth orbits the asteroic 25.0 km above its surface in a circular orbit. What is the orbital period (in hours) of the spacecraft? Ignore the gravity of all other bodies.
Astronomers estimate that a 2.0-km-wide asteroid collides with the Earth once every million years. The collision...
Astronomers estimate that a 2.0-km-wide asteroid collides with the Earth once every million years. The collision could pose a threat to life on Earth. a) Assume a spherical asteroid has a mass of 3500 kg for each cubic meter of volume and moves toward the Earth at 14 km/s. How much destructive energy could be released when it embeds itself in the Earth? B)For comparison, a nuclear bomb could release about 4.0×1016 J . How many such bombs would have...
Consider a spherical asteroid with a radius of 20 km and a mass of 9.25 ✕...
Consider a spherical asteroid with a radius of 20 km and a mass of 9.25 ✕ 1015 kg. Assume the asteroid is roughly spherical. (a) What is the acceleration due to gravity on the surface of this asteroid? m/s2 (b) Suppose the asteroid spins about an axis through its center, like the Earth, with a rotational period T. What is the smallest value T can have before loose rocks on the asteroid's equator begin to fly off the surface? h
a) A 75.2-kg jogger runs with a velocity of 2.85 m/s. How much kinetic energy does...
a) A 75.2-kg jogger runs with a velocity of 2.85 m/s. How much kinetic energy does the jogger have? b) During a football game, a 70-kg running back runs with a speed of 5.15 m/s while a 120-kg lineman runs with a speed of 2.20 m/s. Which player has the greater inertia? Why?
1. How much kinetic energy does an object of mass m traveling with a velocity vx...
1. How much kinetic energy does an object of mass m traveling with a velocity vx in the x-direction have? 2. How much kinetic energy does an object of mass m traveling with a velocity ~v = vx ˆi + vy ˆj have? 3. Since the pythagorean theorem states that v ^2 = v ^2 x + v ^2 y , we can write the kinetic energy as K = 1/2mv^2 x + 1/2mv^2 y . Does this mean that...
1. [12 points] Compelling evidence for the asteroid impact 65 million years ago which triggered t...
1. [12 points] Compelling evidence for the asteroid impact 65 million years ago which triggered the extinction of the dinosaurs was discovery of a thin Iridium-rich clay layer in sediments all around the world. A normal rock sample from the Earth's crust contains less than 1 nanogram per gram (or 1 part per billion) of Iridium, while the Iridium clay layer associated with the K-Pg impact contains about 3 parts per billion. (a) Assume the K-T impactor was a rocky...
The Tunguska asteroid is estimated to have had a diameter of 50 m, and to have...
The Tunguska asteroid is estimated to have had a diameter of 50 m, and to have produced an explosion equivalent to 10 megatons of TNT (1 megaton = 4.2 x 1015 joules). Assume that the asteroid was a sphere with density 2 g/cm2. Using the kinetic energy formula K = 42 mv2, where m is the mass and v is the speed, to estimate the speed of the asteroid. Assume that all kinetic energy is converted into the energy of...
3questions in total please
*Problem 6.66 You stand on a spherical asteroid of uniform density whose mass is 2.5 x 1016 kg and whose radius is 11 km (11 x 103 m). These are typical values for small asteroids, although some asteroids have been found to have much lower average density and are thought to be loose agglomerations of shattered rocks. You want to figure out how fast you have to throw the rock so that it never comes back...
Assume that the density of an average asteroid is 3.1 kg/L, and that the craters on the Moon are roughly 15 times the size of the impacting body. a. What was the diameter of the asteroid that created the 240-km-diameter Clavius crater? D= 16 km Using the density of an average asteroid, calculate the mass of this asteroid. m= *10 15 kg b. Calculate the kinetic energy of this impact if the speed of the asteroid was 22 km/sec relative...
2. A strange spherical asteroid has a density of 5200. kg/m2 with an outer radius of 200.0 km, Symmetricalily in the center of the asteroid is a spherical cavity 75.0 km in diameter. A 2500. kg spacecraft from Earth orbits the asteroic 25.0 km above its surface in a circular orbit. What is the orbital period (in hours) of the spacecraft? Ignore the gravity of all other bodies.
1. [12 points] Compelling evidence for the asteroid impact 65 million years ago which triggered the extinction of the dinosaurs was discovery of a thin Iridium-rich clay layer in sediments all around the world. A normal rock sample from the Earth's crust contains less than 1 nanogram per gram (or 1 part per billion) of Iridium, while the Iridium clay layer associated with the K-Pg impact contains about 3 parts per billion. (a) Assume the K-T impactor was a rocky...
The Tunguska asteroid is estimated to have had a diameter of 50 m, and to have produced an explosion equivalent to 10 megatons of TNT (1 megaton = 4.2 x 1015 joules). Assume that the asteroid was a sphere with density 2 g/cm2. Using the kinetic energy formula K = 42 mv2, where m is the mass and v is the speed, to estimate the speed of the asteroid. Assume that all kinetic energy is converted into the energy of...
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