On August 10, 1972, a large meteorite skipped across the atmosphere above the western United States and western Canada, much like a stone skipped across water. The accompanying fireball was so bright that it could be seen in the daytime sky and was brighter than the usual meteorite trail. The meteorite's mass was about 4.3 x 10° kg; it's speed was about 16 km/s. Had it entered the atmosphere vertically, it would have hit Earth's surface with about the same speed. (a) Calculate the meteorite's loss of energy (as a positive number, in joules) that would have been associated with the vertical impact. (b) Express the energy as a multiple of the explosive energy of 1 megaton of TNT, which is 4.2 x 1015 J. (c) The energy associated with the atomic bomb explosion over Hiroshima was equivalent to 13 kilotons of TNT. To how many Hiroshima bombs would the meteorite impact have been equivalent? (a) Number Units (b) Number Units (c) Number i Units

On August 10, 1972, a large meteorite skipped across the atmosphere above the western United States and western Canada, much like a stone skipped across water. The accompanying fireball was so bright that it could be seen in the daytime sky and was brighter than the usual meteorite trail. The meteorite's mass was about 4.3 x 10° kg; it's speed was about 16 km/s. Had it entered the atmosphere vertically, it would have hit Earth's surface with about the same speed. (a) Calculate the meteorite's loss of energy (as a positive number, in joules) that would have been associated with the vertical impact. (b) Express the energy as a multiple of the explosive energy of 1 megaton of TNT, which is 4.2 x 1015 J. (c) The energy associated with the atomic bomb explosion over Hiroshima was equivalent to 13 kilotons of TNT. To how many Hiroshima bombs would the meteorite impact have been equivalent? (a) Number Units (b) Number Units (c) Number i Units

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter6: Momentum And Collisions

Section: Chapter Questions

Problem 10WUE

See similar textbooks

Similar questions

Check Your Understanding There is a second solution to the system of equations solved in this example (because the energy equation is quadratic): v1.f=-2.5m/s , v2.f=0 . This solution is unacceptable on physical grounds; what’s with it?
At the start of a basketball game, a referee tosses a basketball straight into the air by giving it some initial speed. After being given that speed, the ball reaches a maximum height of 4.25 m above where it started. Using conservation of energy, find a. the balls initial speed and b. the height of the ball when it has a speed of 2.5 m/s.
How much energy is lost to a dissipative drag force if a 60-kg person falls at a constant speed for 15 meters?
The lunar module orbits first 110 km above the surface of the Moon at a speed of 1.63 km/h and then it's with a short engine jerk directed towards the Moon. At what speed does it collide with the Moon?
Gayle runs at a speed of 4.00 m/s and dives on a sled, initiallyat rest on the top of a frictionless, snow- covered hill. After shehas descended a vertical distance of 5.00 m, her brother, whois initially at rest, hops on her back, and they continue downthe hill together. What is their speed at the bottom of the hillif the total vertical drop is 15.0 m? Gayle’s mass is 50.0 kg,the sled has a mass of 5.00 kg, and her brother has a mass of30.0 kg.
a baseball catcher puts on an exhibition by catching a 0.15 kg ball, dropped from a helicopter at a height of 100m above the catcher. If the catcher "gives" with the ball for 0.75 m (was originally 1m off the ground) while catching it, what is the average force exerted on the mitt by the ball?
Calculate the final speed of a 110 kg rugby player who is initially running at 8 m/s but collides head on with a padded goalpost and experiences a backward force of 1.76×104 N for 5.50×10−2 s. (Ans. = 0.8 m/s)
A projectile of mass m is fired horizontally with an initialspeed of v0 from a height of h above a flat, desert surface.Neglecting air friction, at the instant before the projectile hitsthe ground, find the following in terms of m, v0, h, and g : (a) thework done by the force of gravity on the projectile, (b) thechange in kinetic energy of the projectile since it was fired,and (c) the final kinetic energy of the projectile. (d) Are anyof the answers changed if the initial angle is changed?
Apollo 14 astronaut Alan Shepard famously took two golfshots on the Moon where it’s been estimated that an expertlyhit shot could travel for 70.0 s through the Moon’s reducedgravity, airless environment to a maximum range of 4.00 km(about 2.5 miles). Assuming such an expert shot has a launchangle of 45.0°, determine the golf ball’s (a) kinetic energy asit leaves the club, and (b) maximum altitude in km above thelunar surface. Take the mass of a golf ball to be 0.045 0 kg andthe Moon’s gravitational acceleration to be gmoon = 1.63 m/s2.
In a Broadway performance, an 80.0-kg actor swings from a3.75-m-long cable that is horizontal when he starts. At the bottomof his arc, he picks up his 55.0-kg costar in an inelasticcollision. What maximum height do they reach after theirupward swing?
a)Gayle runs at a speed of 3.80 m/s and dives on a sled, initially at rest on the top of a frictionless snow-covered hill. After she has descended a vertical distance of 5.00 m, her brother, who is initially at rest, hops on her back and together they continue down the hill. What is their speed at the bottom of the hill if the total vertical drop is 15.0 m? Gayle's mass is 49.5 kg, the sled has a mass of 5.50 kg and her brother has a mass of 30.0 kg.
During an ice show, a 57.5-kg skater leaps into the air and is caught by an initially stationary 87.5 kg skater. What is their final speed, in meters per second, assuming negligible friction and that the 57.5 kg skater’s initial horizontal speed is 4.1 m/s? How much kinetic energy is lost, in joules?