A pumpkin of mass 5 kg shot out of a student-made cannon under air pressure atan elevation angle of 45° fell at a distance of 142 m from the cannon. The studentsused light beams and photocells to measure the initial velocity of 54 m/s. If the airresistive force was F = -kmv, what was the value of k?

To determine the value of (k) for the air resistive force (F=−kmv), we need to account for the…

Answered: A pumpkin of mass 5 kg shot out of a…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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A piece of wood moves at a velocity (measured in millimeters per year) of v(1) = r² – 3t – 4 where 1 = 1 would be the end of the first year. If a is the displacement of the wood in the first 5 years and b is the distance traveled in the first 5 years, what is a- b? None of the listed answers
The NASA Space Launch System rocket that will carry the Artemis mission to the Moon travels 500 feet (152 m) straight up in the first 7 seconds of flight. It weighs 5.75 million pounds (mass of 2.61e6 kg). In this problem, we'll calculate the total force the rockets are providing. The numbers will be randomized slightly. Since the rocket is using fuel, the question is an approximation anyway. What is the weight of the rocket, if its mass is 2.21E+6 kg? Assume g = 9.8 m/s². N At launch, the rocket travels upwards at an acceleration of 5.66 m/s². This tells us that it must be acted on by a net force of 1.25E+7 N. If that is the net upward force, what is the total upward force provided by the engines? N (For all answers, just enter the amount as positive number: DO NOT use + or - to indicate up and down. You will need to consider the direction to decide whether to add or subtract forces in determining your answer, though.)
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A beam is supported by a roller at A and a pin at B. Determine the reactions at A and B when P = 15 kips. Neglect the weight of the beam.
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The NASA Space Launch System rocket that will carry the Artemis mission to the Moon travels 500 feet (152 m) straight up in the first 7 seconds of flight. It weighs 5.75 million pounds (mass of 2.61e6 kg). In this problem, we'll calculate the total force the rockets are providing. The numbers will be randomized slightly. Since the rocket is using fuel, the question is an approximation anyway. What is the weight of the rocket, if its mass is 2.26E+6 kg? Assume g = 9.8 m/s². N At launch, the rocket travels upwards at an acceleration of 7.35 m/s². This tells us that it must be acted on by a net force of 1.66E+7 N. If that is the net upward force, what is the total upward force provided by the engines? N (For all answers, just enter the amount as positive number: DO NOT use + or - to indicate up and down. You will need to consider the direction to decide whether to add or subtract forces in determining your answer, though.)
The NASA Space Launch System rocket that will carry the Artemis mission to the Moon travels 500 feet (152 m) straight up in the first 7 seconds of flight. It weighs 5.75 million pounds (mass of 2.61e6 kg). In this problem, we'll calculate the acceleration and the net force on a similar rocket. The numbers will be randomized slightly for our question. Since the rocket is using fuel, this is an approximation anyway. The SLS starts from rest and reaches a final velocity of 41.9 m/s in 8.50 seconds. What is its average acceleration? m/s² What is the net upward force on the rocket providing that acceleration, if it has mass 2.78E+6 kg? N
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