Question 4A rocket projectile has the following characteristics:Initial mass of vehicle (including payload etc)200 kgMass of vehicle after rocket operation130 kgPayload, nonpropulsive structure, etc110 kgRocket operating duration3.0 secAverage specific impulse of propellant240 secDetermine:Vehicle mass ratiopropellant mass fractionpropellant flow rateThrustthrust to weight ratioacceleration of vehicleEffective exhaust velocitytotal impulseimpulse to weight ratio Note: Formulae to calculate volumes of various shapes have been given:Vcone = 1/3 tr²hVcylinder = Tr²hVrustrum = /3 th(r² + R² +r × R)

Given Data The initial mass of the vehicle is:mv=200 kg The mass of the vehicle after rocket…

A rocket projectile has the following characteristics: 200 kg Initial mass of vehicle (including payload etc) 130 kg Mass of vehicle after rocket operation 110 kg Payload, nonpropulsive structure, etc 3.0 sec Rocket operating duration 240 sec Average specific impulse of propellant

A rocket projectile has the following characteristics: 200 kg Initial mass of vehicle (including payload etc) 130 kg Mass of vehicle after rocket operation 110 kg Payload, nonpropulsive structure, etc 3.0 sec Rocket operating duration 240 sec Average specific impulse of propellant

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

Question 7 (F. s) In a perfectly elastic collision, momentum and kinetic energy of both colliding objects: a. Become zero O b. Remain the same C. Decrease d. Increase Question 9 (5x---- A 2200 kg car traveling at 30 m/s collides with another 2200 kg car that is at rest. The two bumpers lock and the cars move forward together. What is their final velocity? a. 10 m/s b. 15 m/s c. 30 m/s d. 0 m/s Question 8 3) Which of the below indicates that the collision is elastic? O a. Both objects get stuck together after collision O b. Objects are hotter after collision C. Objects are deformed after collision Question 10 F 's) A 1000-kg car traveling initially with a speed of 20 m/s in an eastern direction crashes into the rear end of 2000-kg truck moving in the same direction with a speed of 10 m/s. The velocity of the car right after the collision is 15 m/s to the east. What is the velocity of the truck after the collision? O a. 7.5 m/s O b. 12.5 m/s O c. 2.5 m/s d. 0 m/s
Question 9 A car of mass 1200 kg is travelling west with a velocity of 72 kmh=1. It takes a left turn at 50° and continues with the same speed. It takes 5.5 s to turn the corner. a. Find the change in momentum of the car as it rounds the corner. b. Find the force the road applies to the cars tyres as it turns the corner. c. Find the force the car's tyres apply to the road as it turns the corner.
b. 1.67 m O c. 0.63 m O d. 0.79 m O Q2/What is the speed of sound in air at 20 * ?degrees Celsius a. 5960m/s O b. 1540m/s O c. 331m/s O d. 343.62m/s O هذا السؤال مطلوب Q1/What is the minimum angle at which a light ray is reflected back into a material and ?cannot pass into the surrounding medium
q8
don't copy ,need right ans.
Choose the correct answer
113 Blocks on a spring. Two blocks with masses m₁ and m₂ are connected by a spring and are free to slide on a frictionless horizontal surface. The blocks are pulled apart along an x axis and then released from rest. At any later time, (a) what fraction frac₁ of the total kinetic energy of the system will block 1 have and (b) what fraction fracz will block 2 have? (c) If m₁ > m2,which block has more kinetic energy? 中

Q1: Show with mechanism, What are happened to the following polymers: 1- Polypropylene exposed to oxygen? 2- Polybutadiene exposed to higher temperature? 3- Polyvinylchloride exposed to 250 °C? 4- Polyethylene prevent by phenolic compounds? 5- Polystyrene exposed to random chain session?
Suppose you're riding your bicycle in the mountains. You climb a mountain pass on a scenic roadway and prepare to descend the other side of the mountains. You have a choice of two roads you can use to descend. One road is two miles long, while the other is ten miles long. Assuming you apply the same, consistent braking force throughout the duration of your descent for either route, which descent route will allow you to reach the base of the pass with the highest speed? Two-mile (shorter) route Ten-mile (longer) route No difference
Part A The 2.2-Mg car increases its speed uniformly from rest to 17 m/s in 40 s up the inclined road. Determine the maximum power that must be supplied by the engine, which operates with an efficiency of e = 0.8. (Figure 1) Express your answer with the appropriate units. HA Pmax = 52.39 kW Submit Previous Answers Request Answer X Incorrect; Try Again Part B Also, find the average power supplied by the engine. Figure 1 of 1 Express your answer with the appropriate units. Pavg = |26.19 kW Submit Previous Answers Request Answer 10 X Incorrect; Try Again
In a totally inelastic collision between a moving object and a stationary object, the two objects will bounce off each other, without losing energy. bounce off each other, losing energy. stick together.
7. During impact, particles collide with a very short interaction period. The interparticle impulse during an impact collision includes a deformation impulse as particles undergo some combination of elastic and plastic deformation plus a restitution impulse during which some portion of of the deformation is reversed. The magnitude of the restitution impulse is always greater than that of the deformation impulse. True False