A student is trying to optimize the exhaust shape of a rocket. They designed a new shape, and are trying to figure out how fast it allows the burning fuel to flow out of the rocket. The student takes a rockets that weighs 19.91 kg empty and loads 7.63 kg of fuel. The student aims the rocket horizontally, lights it, and watches it take off. The rocket exhausts the fuel before dropping to the ground. Right before the fuel is exhausted, the student - equipped with a speedometer - observes the velocity x- component of the rocket is 24.88 m/s. Assuming no air drag, perfect rocket efficiency, and constant mass flow, what was the speed of the ejected fuel relative to the rocket? Include units in SI

A student is trying to optimize the exhaust shape of a rocket. They designed a new shape, and are trying to figure out how fast it allows the burning fuel to flow out of the rocket. The student takes a rockets that weighs 19.91 kg empty and loads 7.63 kg of fuel. The student aims the rocket horizontally, lights it, and watches it take off. The rocket exhausts the fuel before dropping to the ground. Right before the fuel is exhausted, the student - equipped with a speedometer - observes the velocity x- component of the rocket is 24.88 m/s. Assuming no air drag, perfect rocket efficiency, and constant mass flow, what was the speed of the ejected fuel relative to the rocket? Include units in SI

Name: Pls help ASAP. Pls show all work annd circle the final answer. A stude
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Description: Pls help ASAP. Pls show all work annd circle the final answer. A student is trying to optimize the exhaust shape of a rocket. They designed a new shape, and are trying to figure out how fast it allows the burning fuel to flow out of therocket. The st

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter11: Collisions

Section: Chapter Questions

Problem 8PQ

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Similar questions

A ball of mass 50.0 g is dropped from a height of 10.0 m. It rebounds after losing 75% of its kinetic energy during the collision process. If the collision with the ground took 0.010 s, find the magnitude of the impulse experienced by the ball.
Sven hits a baseball (m = 0.15 kg). He applies an average force of 50.0 N. The ball had an initial velocity of 35.0 m/s to the right and a final velocity of 40.0 m/s to the left as viewed by a fan in the stands. a. What is the impulse delivered by Svens bat to the baseball? b. How long is his bat in contact with the ball?
A rocket has total mass Mi = 360 kg, including Mfuel = 330 kg of fuel and oxidizer. In interstellar space, it starts from rest at the position x = 0, turns on its engine at time t = 0, and puts out exhaust with relative speed ve = 1 500 m/s at the constant rate k = 2.50 kg/s. The fuel will last for a burn time of Tb = Mfuel/k = 330 kg/(2.5 kg/s) = 132 s. (a) Show that during the burn the velocity of the rocket as a function of time is given by v(t)=veln(1ktMi) (b) Make a graph of the velocity of the rocket as a function of time for times running from 0 to 132 s. (c) Show that the acceleration of the rocket is a(t)=kveMikt (d) Graph the acceleration as a function of time. (c) Show that the position of the rocket is x(t)=ve(Mikt)ln(1ktMi)+vet (f) Graph the position during the burn as a function of time.
Three runaway train cars are moving on a frictionless, horizontal track in a railroad yard as shown in Figure P11.73. The first car, with mass m1 = 1.50 103 kg, is moving to the right with speed v1 = 10.0 m /s; the second car, with mass m2 = 2.50 103 kg, is moving to the left with speed v2 = 5.00 m/s, and the third car, with mass m3 = 1.20 103 kg, is moving to the left with speed v3 = 8.00 m /s. The three railroad cars collide at the same instant and couple, forming a train of three cars. a. What is the final velocity of the train cars immediately after the collision? b. Would the answer to part (a) change if the three cars did not collide at the same instant? Explain. FIGURE P11.73
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A 5-kg cart moving to the right with a speed of 6 m/s collides with a concrete wall and rebounds with a speed of 2 m/s. What is the change in momentum of the cart? (a) 0 (b) 40 kg m/s (c) 40 kg m/s (d) 30 kg m/s (e) 10 kg m/s
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A submarine with a mass of 6.26 106 kg contains a torpedo with a mass of 354 kg. The submarine fires the torpedo at an angle of 25 with respect to the horizontal as shown in Figure P10.42. a. If the submarine and the torpedo were initially at rest and the torpedo left the submarine with a speed of 89.2 m/s, what is the recoil speed of the submarine? b. What is the direction of recoil of the submarine? FIGURE P10.42