Homework Answers
020
Natural angular frequency of spring mass system is
It is given that energy decrease per period is 1%
The Q-factor is
Using
We get
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018 (part 1 of 3) 10.0 points A 3 kg object oscillates...
018 (part 1 of 2) 10.0 points A 1.01 × 10° kg car accelerates uniformly from...
018 (part 1 of 2) 10.0 points A 1.01 × 10° kg car accelerates uniformly from rest to 11.5 m/s in 2.32 s. What is the work done on the car in this time interval? Answer in units of J. 019 (part 2 of 2) 10.0 points What is the power delivered by the engine in this time interval? Answer in units ofW.
018 (part 1 of 2) 10.0 points A jet aircraft is traveling at 290 m/s in...
018 (part 1 of 2) 10.0 points A jet aircraft is traveling at 290 m/s in hor- izontal flight. The engine takes in air at a rate of 39.3 kg/s and burns fuel at a rate of 1.37 kg/s. The exhaust gases are ejected at 441 m/s relative to the aircraft. Find the thrust of the jet engine. Answer in units of N. 019 (part 2 of 2) 10.0 points Find the delivered power. Answer in units of W.
018 10.0 points You weigh 670 N. What would you weigh if the Earth were five...
018 10.0 points You weigh 670 N. What would you weigh if the Earth were five times as massive as it is and its radius were four times its present value? Answer in units of N. 019 (part 1 of 2) 10.0 points On the way to the moon, the Apollo astro- nauts reach a point where the Moon's gravi- tational pull is stronger than that of Earth's. Find the distance of this point from the center of the Earth....
018 10.0 points You weigh 670 N. What would you weigh if the Earth were five...
018 10.0 points You weigh 670 N. What would you weigh if the Earth were five times as massive as it is and its radius were four times its present value? Answer in units of N. 019 (part 1 of 2) 10.0 points On the way to the moon, the Apollo astro- nauts reach a point where the Moon's gravi- tational pull is stronger than that of Earth's. Find the distance of this point from the center of the Earth....
018 (part 1 of 2) 10.0 points An elevator accelerates upward at 1.2 m/s2. The acceleration...
018 (part 1 of 2) 10.0 points An elevator accelerates upward at 1.2 m/s2. The acceleration of gravity is 9.8 m/s What is the upward force exerted by the floor of the elevator on a(n) 92 kg passenger? Answer in units of N 019 (part 2 of 2) 10.0 points If the same elevator accelerates downwards with an acceleration of 1.2 m/s, what is the upward force exerted by the elevator floor on the passenger? Answer in units of
018 (part 1 of 2) 10.0 points An elevator accelerates upward at 1.2 m/s The acceleration...
018 (part 1 of 2) 10.0 points An elevator accelerates upward at 1.2 m/s The acceleration of gravity is 9.8 m/s What is the upward force exerted by the floor of the elevator on a(n) 92 kg passenger? Answer in units of N 019 (part 2 of 2) 10.0 point:s If the same elevator accelerates downwards with an acceleration of 1.2 m/s2, what is the upward force exerted by the elevator floor on the passenger? Answer in units of N
19 & 20 019 (part 1 of 2) 10.0 points On the way to the moon,...
19 & 20
019 (part 1 of 2) 10.0 points On the way to the moon, the Apollo astro- nauts reach a point where the Moon's gravi- tational pull is stronger than that of Earth's. Find the distance of this point from the center of the Earth. The masses of the Earth and the Moon are 5.98 x 1024 kg and 7.36x 1022 kg, respectively, and the distance from the Earth to the Moon is 3.84 x 108 m Answer...
19&20 019 (part 1 of 2) 10.0 points On the way to the moon, the Apollo...
19&20
019 (part 1 of 2) 10.0 points On the way to the moon, the Apollo astro- nauts reach a point where the Moon's gravi tational pull is stronger than that of Earth's. Find the distance of this point from the center of the Earth. The masses of the Earth and the Moon are 5.98 × 1024 kg and 7.36 x 1022 kg, respectively, and the distance from the Earth to the Moon is 3.84 × 100 m Answer in...
A 2 kg object oscillates with an initial amplitude of 3 cm on a spring of...
A 2 kg object oscillates with an initial amplitude of 3 cm on a spring of force constant k = 425 N/m. (a) Find the period. ________ s (b) Find the total initial energy. ________ J (c) If the energy decreases by 1% per period, find the damping constant b and the Q factor. b = ________ kg/s Q = ________
Please do 19 and 20 019 (part 1 of 2) 10.0 points On the way to...
Please do 19 and 20
019 (part 1 of 2) 10.0 points On the way to the moon, the Apollo astro- nauts reach a point where the Moon's gravi- tational pull is stronger than that of Earth's. Find the distance of this point from the center of the Earth. The masses of the Earth and the Moon are 5.98 x 1024 kg and 7.36 x 1022 kg, respectively, and the distance from the Earth to the Moon is 3.84 ×...
018 (part 1 of 2) 10.0 points A 1.01 × 10° kg car accelerates uniformly from rest to 11.5 m/s in 2.32 s. What is the work done on the car in this time interval? Answer in units of J. 019 (part 2 of 2) 10.0 points What is the power delivered by the engine in this time interval? Answer in units ofW.
018 (part 1 of 2) 10.0 points A jet aircraft is traveling at 290 m/s in hor- izontal flight. The engine takes in air at a rate of 39.3 kg/s and burns fuel at a rate of 1.37 kg/s. The exhaust gases are ejected at 441 m/s relative to the aircraft. Find the thrust of the jet engine. Answer in units of N. 019 (part 2 of 2) 10.0 points Find the delivered power. Answer in units of W.
018 10.0 points You weigh 670 N. What would you weigh if the Earth were five times as massive as it is and its radius were four times its present value? Answer in units of N. 019 (part 1 of 2) 10.0 points On the way to the moon, the Apollo astro- nauts reach a point where the Moon's gravi- tational pull is stronger than that of Earth's. Find the distance of this point from the center of the Earth....
018 10.0 points You weigh 670 N. What would you weigh if the Earth were five times as massive as it is and its radius were four times its present value? Answer in units of N. 019 (part 1 of 2) 10.0 points On the way to the moon, the Apollo astro- nauts reach a point where the Moon's gravi- tational pull is stronger than that of Earth's. Find the distance of this point from the center of the Earth....
018 (part 1 of 2) 10.0 points An elevator accelerates upward at 1.2 m/s2. The acceleration of gravity is 9.8 m/s What is the upward force exerted by the floor of the elevator on a(n) 92 kg passenger? Answer in units of N 019 (part 2 of 2) 10.0 points If the same elevator accelerates downwards with an acceleration of 1.2 m/s, what is the upward force exerted by the elevator floor on the passenger? Answer in units of
018 (part 1 of 2) 10.0 points An elevator accelerates upward at 1.2 m/s The acceleration of gravity is 9.8 m/s What is the upward force exerted by the floor of the elevator on a(n) 92 kg passenger? Answer in units of N 019 (part 2 of 2) 10.0 point:s If the same elevator accelerates downwards with an acceleration of 1.2 m/s2, what is the upward force exerted by the elevator floor on the passenger? Answer in units of N
19 & 20
019 (part 1 of 2) 10.0 points On the way to the moon, the Apollo astro- nauts reach a point where the Moon's gravi- tational pull is stronger than that of Earth's. Find the distance of this point from the center of the Earth. The masses of the Earth and the Moon are 5.98 x 1024 kg and 7.36x 1022 kg, respectively, and the distance from the Earth to the Moon is 3.84 x 108 m Answer...
19&20
019 (part 1 of 2) 10.0 points On the way to the moon, the Apollo astro- nauts reach a point where the Moon's gravi tational pull is stronger than that of Earth's. Find the distance of this point from the center of the Earth. The masses of the Earth and the Moon are 5.98 × 1024 kg and 7.36 x 1022 kg, respectively, and the distance from the Earth to the Moon is 3.84 × 100 m Answer in...
Please do 19 and 20
019 (part 1 of 2) 10.0 points On the way to the moon, the Apollo astro- nauts reach a point where the Moon's gravi- tational pull is stronger than that of Earth's. Find the distance of this point from the center of the Earth. The masses of the Earth and the Moon are 5.98 x 1024 kg and 7.36 x 1022 kg, respectively, and the distance from the Earth to the Moon is 3.84 ×...
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