Homework Answers
The time at which car attains maximum forward (positive velocity) is when the acceleration is zero i.e
at a=0 =>t=8.5 s
after t=8.5 s ,the acceleration is negative ,since speed is decreasing
Therefore answer is
t=8.5 s
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Main Menu Contents Grades Course Contents » » Problem Set 1 (13) Acceleration Graph TimerNotesEvaluateFeedbacPriInfo The...
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Updates Not Installed Some updates could not be ins automatically Main Menu Contents Grades Course Contents ».Problem Set 1 (12) Graph Interpretation Timer The plot shows velocity versus time for an object. What was the average acceleration during the plotted time interval? .75m/s*2 14 13 12 E 11 10 Submit Answer Incorrect. Tries 1/8 Previous Tries 0 1 2 3 45 6 Time (s) Post Discussion
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Main Menu Contents Grades Syllabus [ Course Contents » ... » Problem Set 5 » (8) Central Fringe Width • Timer Notes Evaluate Feedback Print Info A two-slit pattern is viewed on a screen 1.06 m from the slits. If the two fifth-order maxima are 66.0 cm apart, what is the total width of the central bright fringe? 0.112m Submit Answer Incorrect. Tries 3/8 Previous Tries e Post Discussion Send Feedback
Main Menu Contents Grades Syllabus Course ContentsTimerNotes Evaluate Feeback PrinInfo A person who is 1.3 m...
Main Menu Contents Grades Syllabus Course ContentsTimerNotes Evaluate Feeback PrinInfo A person who is 1.3 m tall throws a ball with a speed of 6.8 m/s at an angle of 20 degrees above the horizontal. What are the x and y components of the velocity (in m/s) of the ball the instant before it strikes the ground? The acceleration due to gravity is 10 m/s2 x-component: y-component: Submit Answer Tries 0/2 Post Discussion Send Feedback
Jan2020 Main Menu Contents Grades Course Contents »... » Caps Leyes de « Timer Notes Evaluate...
Jan2020 Main Menu Contents Grades Course Contents »... » Caps Leyes de « Timer Notes Evaluate Feedback & Two forces F1 and F2 are acting on a mass, m = 3.0 kg. The force F1 = 5.01 + 7.0J + 4.0K, in N. The acceleration of the mass is given by a = 3.01 + 3.0J + 5.0K, in m/s2. Calculate the Magnitude of F2 (in Newtons). Submit Answer Tries 0/40 e Post Discussion Send Feedbac
Main Menu Contents | Grades Course Contents » Correction Exams » • Timer Notes Evaluate Feedback...
Main Menu Contents | Grades Course Contents » Correction Exams » • Timer Notes Evaluate Feedback Print A positive charge of 4.50 C is fixed in place. From a distance of 4.80 cm a particle of mass 6.20 g and charge +3.50 C is fired with an initial speed of 80.0 m/s directly toward the fixed charge. How close to the fixed charge does the particle get before it comes to rest and starts traveling away? Submit Answer Tries 0/20...
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ZO19 Introductory Physics II Main Menu Contents Grades Course Contents » HOMEwORK » Set 2 ( .) Timer □ Notes Feedback 을 Print Evaluate Two parallel plates, each of area 3.27 cm2, are separated by 4.30 mm. The space between the plates is filled with air. A voltage of 5.25 V is applied between the plates. Calculate the magnitude of the electric field between the plates. Submit Answer Tries 0/20 Calculate the amount of the electric charge stored on each...
Main Menu Contents Grades Course Contents » ... » Homework 03 » Position vs < Timer...
Main Menu Contents Grades Course Contents » ... » Homework 03 » Position vs < Timer Notes Evaluate by Feedback Print Info Position 10 Time FO 10 12 14 16 18 Identify the place on the above position vs. time graph when each of the following is true: The object is the farthest from the origin. When the object has the largest negative velocity. When the object undergoes the largest acceleration. When the object has the highest speed.
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Main Menu contents | Grades I Course Contents » Homework » Homework set # 2 ( ework set #2( Timer Notes Evaluate Feedback 을 Print » Supersonic airplane turning . A supersonic airplane is flying horizontally at a speed of 2780 km/h. What is the centripetal acceleration of the airplane, if it turns fra North to East on a circular path with a radius of 61.5 km? Submit Answer Tries 0/20 How much time does the turn take? Submit Answer...
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Introductory Physics II Main Menu Contents Grades Course Contents HOMEWORK » Set 2 Timer Notes EvaluateFeedbackPri A capacitor consists of two closely spaced metal conductors of large area, separated by a thin insulating foil. It has an electrical capacity of 3800.0 uF and i charged to a potential difference of 87.0 V. Calculate the amount of energy stored in the capacitor. Suimi Ansae Tries o/20 Calculate the charge on this capacitor when the electrical energy stored in the capacitor is...
Main Menu Contents Grades Timer Notes Evaluate Feedback Print Info Course Contents ... w1 3 10.14T...
Main Menu Contents Grades Timer Notes Evaluate Feedback Print Info Course Contents ... w1 3 10.14T - Dynamics of Rotational Motion Rotational Inertia Suppose you exert a force of 212 N tangential to a 0.290-m-radius 89.0-kg grindstone (a solid disk). What torque is exerted? Su Tes /10 What is the angular acceleration assuming neglige opposing friction? Submit A Tries 0/10 What is the angular acceleration if there is an opposing frictional force of 16.9 N exerted 1.41 cm from the...
Updates Not Installed Some updates could not be ins automatically Main Menu Contents Grades Course Contents ».Problem Set 1 (12) Graph Interpretation Timer The plot shows velocity versus time for an object. What was the average acceleration during the plotted time interval? .75m/s*2 14 13 12 E 11 10 Submit Answer Incorrect. Tries 1/8 Previous Tries 0 1 2 3 45 6 Time (s) Post Discussion
Main Menu Contents Grades Syllabus [ Course Contents » ... » Problem Set 5 » (8) Central Fringe Width • Timer Notes Evaluate Feedback Print Info A two-slit pattern is viewed on a screen 1.06 m from the slits. If the two fifth-order maxima are 66.0 cm apart, what is the total width of the central bright fringe? 0.112m Submit Answer Incorrect. Tries 3/8 Previous Tries e Post Discussion Send Feedback
Main Menu Contents Grades Syllabus Course ContentsTimerNotes Evaluate Feeback PrinInfo A person who is 1.3 m tall throws a ball with a speed of 6.8 m/s at an angle of 20 degrees above the horizontal. What are the x and y components of the velocity (in m/s) of the ball the instant before it strikes the ground? The acceleration due to gravity is 10 m/s2 x-component: y-component: Submit Answer Tries 0/2 Post Discussion Send Feedback
Jan2020 Main Menu Contents Grades Course Contents »... » Caps Leyes de « Timer Notes Evaluate Feedback & Two forces F1 and F2 are acting on a mass, m = 3.0 kg. The force F1 = 5.01 + 7.0J + 4.0K, in N. The acceleration of the mass is given by a = 3.01 + 3.0J + 5.0K, in m/s2. Calculate the Magnitude of F2 (in Newtons). Submit Answer Tries 0/40 e Post Discussion Send Feedbac
Main Menu Contents | Grades Course Contents » Correction Exams » • Timer Notes Evaluate Feedback Print A positive charge of 4.50 C is fixed in place. From a distance of 4.80 cm a particle of mass 6.20 g and charge +3.50 C is fired with an initial speed of 80.0 m/s directly toward the fixed charge. How close to the fixed charge does the particle get before it comes to rest and starts traveling away? Submit Answer Tries 0/20...
ZO19 Introductory Physics II Main Menu Contents Grades Course Contents » HOMEwORK » Set 2 ( .) Timer □ Notes Feedback 을 Print Evaluate Two parallel plates, each of area 3.27 cm2, are separated by 4.30 mm. The space between the plates is filled with air. A voltage of 5.25 V is applied between the plates. Calculate the magnitude of the electric field between the plates. Submit Answer Tries 0/20 Calculate the amount of the electric charge stored on each...
Main Menu Contents Grades Course Contents » ... » Homework 03 » Position vs < Timer Notes Evaluate by Feedback Print Info Position 10 Time FO 10 12 14 16 18 Identify the place on the above position vs. time graph when each of the following is true: The object is the farthest from the origin. When the object has the largest negative velocity. When the object undergoes the largest acceleration. When the object has the highest speed.
Main Menu contents | Grades I Course Contents » Homework » Homework set # 2 ( ework set #2( Timer Notes Evaluate Feedback 을 Print » Supersonic airplane turning . A supersonic airplane is flying horizontally at a speed of 2780 km/h. What is the centripetal acceleration of the airplane, if it turns fra North to East on a circular path with a radius of 61.5 km? Submit Answer Tries 0/20 How much time does the turn take? Submit Answer...
Introductory Physics II Main Menu Contents Grades Course Contents HOMEWORK » Set 2 Timer Notes EvaluateFeedbackPri A capacitor consists of two closely spaced metal conductors of large area, separated by a thin insulating foil. It has an electrical capacity of 3800.0 uF and i charged to a potential difference of 87.0 V. Calculate the amount of energy stored in the capacitor. Suimi Ansae Tries o/20 Calculate the charge on this capacitor when the electrical energy stored in the capacitor is...
Main Menu Contents Grades Timer Notes Evaluate Feedback Print Info Course Contents ... w1 3 10.14T - Dynamics of Rotational Motion Rotational Inertia Suppose you exert a force of 212 N tangential to a 0.290-m-radius 89.0-kg grindstone (a solid disk). What torque is exerted? Su Tes /10 What is the angular acceleration assuming neglige opposing friction? Submit A Tries 0/10 What is the angular acceleration if there is an opposing frictional force of 16.9 N exerted 1.41 cm from the...
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