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Question 1 5 pts In dynamics, reaction forces are not constant but can change direction. True...
Question 5 5 pts What is a constraint force? A constraint relationship between two bodies. O...
Question 5 5 pts What is a constraint force? A constraint relationship between two bodies. O A force that constrains a rigid body. A force between bodies inside and outside of the system boundary. O A force associated with maintaining a constraint. Question 6 5 pts What is an external force? O A force that acts on an external surface. A force generated between a body outside and one inside the system boundary. O An active force. A constraint force....
1) Which term best describes an object's resistance to a change in motion A) Force B)...
1) Which term best describes an object's resistance to a change in motion A) Force B) Inertia C) Acceleration D) Resistance 2) Two skaters, Cathy and Mike, are standing on a frozen pond. Mike has twice the mass as Cathy. If Mike pushes to the left on Cathy, what can be said about the forces and accelerations on each person? A) Cathy experiences a force and acceleration to the left, while Mike experiences an equal force in the opposite direction....
Question 3 5 pts What occurs at the end of the compression phase of a collision?...
Question 3 5 pts What occurs at the end of the compression phase of a collision? O The bodies separate from each other. O The two bodies have the same velocity along the line of action of the reaction force. The bodies come to rest. The impulses attain their minimum values. O None of the above. Question 4 5 pts How many relations comprise the equations of motion? O The same as the number of coordinates. The same as the...
Question 4 4 pts Which statement concerning the function of a battery is true? O A...
Question 4 4 pts Which statement concerning the function of a battery is true? O A chemical reaction in the battery provides energy for the moving electrons. The battery pushes protons around the circuit to generate electricity. Charges move because the battery makes them attracted to the resistors. Electric forces in the battery don't have much of an effect on moving charges. Question 5 4 pts Africtional force of 7 N acts on a mass for 21 m as it...
Question 13 1 pts A horizontal force of 5 N accelerates a 4-kg object from rest...
Question 13 1 pts A horizontal force of 5 N accelerates a 4-kg object from rest at 0.5 m/s2. What friction force acts on the object? +3N -3N O+2N 0-2N Question 14 1 pts An object that is acted upon by a net force of 20 N is moving with an acceleration of 10 m/s2 What is the mass of the object? O2 kg O 20 kg O 0.2 kg 10 kg Question 15 1 pts A person weighing 823...
(Dynamics Examination) ist 1, S: 4 If a partide moves along a curve with a constant...
(Dynamics Examination) ist 1, S: 4 If a partide moves along a curve with a constant speed, then its tangential component of acceleration is A: zero. B: positive. C. constant D: negative. 2. 单选题的重点 The position, s. is given as a function of angular positione. as s = 10 sin(28). The velocity, v, is A: 20 sin(2) B: 20 cos(20) C: 20 w cos(20) D: 20 w sin(2) 3. S10 The 15-kg disk is pinned at and is initially at...
Can someone solve these? ill award a thumbs up Force Balance and Free body Diagrams 9....
Can someone solve these? ill award a thumbs up
Force Balance and Free body Diagrams 9. (2) True or false: Dynamic equilibrium involves a net force equal to zero and the object at rest 10. (2) True or false: A hockey puck sliding on a frictionless Ice rink at constant velocity is in dynamic equilibrium. 11. (2) True or False: A stoplight hanging motionless from a wire is in dynamic equilibrium For questions 12, 13 and 14 draw and label...
QUESTION 1 A crate at rest resting on a floor: Normal force direction will be: along...
QUESTION 1 A crate at rest resting on a floor: Normal force direction will be: along the angle of the ramp with respect to the horizontal towards the center of earth parallel to the surface of the ramp perpendicular to the surface of the ramp 1 points QUESTION 2 A box is at rest on a wooden surface. The frictional force direction in this case will be: Opposite to the direction of the applied force perpendicular to the surface...
Find the magnitude of the shear force V (kN) 5 pts Question 3 A joint between...
Find the magnitude of the shear force V (kN)
5 pts Question 3 A joint between two concrete slabs A and B is filled with a flexible epoxy that bonds securely to the concrete (see figure). The height of the joint is h 140 mm, its length is L 1.0m, and its thickness is t 16 mm. Under the action of shear forces V, the slabs displace vertically through the distance d 0.035 mm relative to each other. What is...
1 pts Question 1 Select all of the following that are true about magnets and magnetic...
1 pts Question 1 Select all of the following that are true about magnets and magnetic fields. the source of magnetic fields is net motion of charged particles the South pole of a bar magnet can be separated from the North pole to make two monopoles like magnetic poles IS and S, or N and N) repel and opposites attract IN and S) □ magnetic field lines always form closed loops magnetic fields are scalars a straight wire with current...
Question 5 5 pts What is a constraint force? A constraint relationship between two bodies. O A force that constrains a rigid body. A force between bodies inside and outside of the system boundary. O A force associated with maintaining a constraint. Question 6 5 pts What is an external force? O A force that acts on an external surface. A force generated between a body outside and one inside the system boundary. O An active force. A constraint force....
1) Which term best describes an object's resistance to a change in motion A) Force B) Inertia C) Acceleration D) Resistance 2) Two skaters, Cathy and Mike, are standing on a frozen pond. Mike has twice the mass as Cathy. If Mike pushes to the left on Cathy, what can be said about the forces and accelerations on each person? A) Cathy experiences a force and acceleration to the left, while Mike experiences an equal force in the opposite direction....
Question 3 5 pts What occurs at the end of the compression phase of a collision? O The bodies separate from each other. O The two bodies have the same velocity along the line of action of the reaction force. The bodies come to rest. The impulses attain their minimum values. O None of the above. Question 4 5 pts How many relations comprise the equations of motion? O The same as the number of coordinates. The same as the...
Question 4 4 pts Which statement concerning the function of a battery is true? O A chemical reaction in the battery provides energy for the moving electrons. The battery pushes protons around the circuit to generate electricity. Charges move because the battery makes them attracted to the resistors. Electric forces in the battery don't have much of an effect on moving charges. Question 5 4 pts Africtional force of 7 N acts on a mass for 21 m as it...
Question 13 1 pts A horizontal force of 5 N accelerates a 4-kg object from rest at 0.5 m/s2. What friction force acts on the object? +3N -3N O+2N 0-2N Question 14 1 pts An object that is acted upon by a net force of 20 N is moving with an acceleration of 10 m/s2 What is the mass of the object? O2 kg O 20 kg O 0.2 kg 10 kg Question 15 1 pts A person weighing 823...
(Dynamics Examination) ist 1, S: 4 If a partide moves along a curve with a constant speed, then its tangential component of acceleration is A: zero. B: positive. C. constant D: negative. 2. 单选题的重点 The position, s. is given as a function of angular positione. as s = 10 sin(28). The velocity, v, is A: 20 sin(2) B: 20 cos(20) C: 20 w cos(20) D: 20 w sin(2) 3. S10 The 15-kg disk is pinned at and is initially at...
Can someone solve these? ill award a thumbs up
Force Balance and Free body Diagrams 9. (2) True or false: Dynamic equilibrium involves a net force equal to zero and the object at rest 10. (2) True or false: A hockey puck sliding on a frictionless Ice rink at constant velocity is in dynamic equilibrium. 11. (2) True or False: A stoplight hanging motionless from a wire is in dynamic equilibrium For questions 12, 13 and 14 draw and label...
Find the magnitude of the shear force V (kN)
5 pts Question 3 A joint between two concrete slabs A and B is filled with a flexible epoxy that bonds securely to the concrete (see figure). The height of the joint is h 140 mm, its length is L 1.0m, and its thickness is t 16 mm. Under the action of shear forces V, the slabs displace vertically through the distance d 0.035 mm relative to each other. What is...
1 pts Question 1 Select all of the following that are true about magnets and magnetic fields. the source of magnetic fields is net motion of charged particles the South pole of a bar magnet can be separated from the North pole to make two monopoles like magnetic poles IS and S, or N and N) repel and opposites attract IN and S) □ magnetic field lines always form closed loops magnetic fields are scalars a straight wire with current...
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