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Calculus-Based Physics 1

Showing 76-150 of 222 answers

Does a bridge anchored resting on two pillars have any torque?
  • Yes, but it is at equilibrium Correct
Does a bridge anchoredresting on two pillars have any torque?
  • No, it isn't moving
  • No, Bridge can't have torque
  • Yes, but it will soon break because of the torque
  • Yes, but it is at equilibrium Correct
Equilibrium is the tendency of a force to cause an object to rotate about an axis.
  • False Correct
Equilibrium is the tendency of a force tocause an object to rotate about an axis.
  • True
  • False Correct
Equilibrium occurs when…
  • all of the choices Correct
Equilibrium occurswhen...
  • the net force onthe object is zero
  • all the forcesacting on an object are balanced
  • all of the choices Correct
  • the sumof the upward forces equals the sum of the downward forces
Forces P and F acting along the bars shown in the figure maintain equilibrium of pin A. Determine the values of P. NOTE : see fig-14 from the LIST OF FIGURE in Week1
  • P = -14.76 kN Correct
Forces P and F acting along the bars shown in the figure maintainequilibrium of pin A. Determine the values of P. NOTE : see fig-14 from the LIST OF FIGURE in Week1 
  • P = 476 kN
  • none of the choices
  • P = -1476 kN Correct
  • P = 1476 kN
Free-falling objects always encounter airresistance.
  • True
  • False Correct
Freezing point of water at sea level
  • 100 centigrade
  • 112 centigrade
  • 0 centigrade Correct
  • 50 centigrade
If ∠A = 89 o and ∠C = 56o, find the value of ∠B
  • 35 Correct
If a body is in rest or in uniform velocity, it is said to be in
  • Equilibrium Correct
If a body is in rest orin uniform velocity, it is said to be in
  • Constant force
  • Equilibrium Correct
  • Rest
  • Uniform motion
If net force acting on body is zero then body is said to be.
  • In equilibrium Correct
If net force acting onbody is zero then body is said to be.
  • none of the choices
  • In equilibrium Correct
  • Imbalanced
  • not in equilibrium
If the body is in equilibrium under the action of a number of the forces, then the algebraic sum of the moments of the forces about any point is equal to one
  • False Correct
If the polygon is closed, theresultant is a vector of zero magnitude and has no direction. This is calledthe ________ vector.
  • none of the choices
  • full
  • empty Correct
  • both A and B
If=E2=88=A0A = 89 o and =E2=88=A0C = 56o, find the value of =E2=88=A0B.
  • 55
  • 35 Correct
  • 25
  • 45
Ifthe body is in equilibrium under the action of a number of the forces, then thealgebraic sum of the moments of the forces about any point is equal to one.
  • True
  • False Correct
Ifthere is a great number of forces, the ___________ to this system wouldpotentially be simpler if the forces that are  applied to the system are easy to break into components.
  • logical solution
  • graphical solution
  • algebraic solution Correct
  • none of the choices
In a certain non-concurrent force system it is found that summation of fx=-80lb, summation of fy=160lb and summation Mo=480lb-ft in a counterclockwise sense. Determine the point at which the resultant intersects the y-axis. NOTE: see figure 2 from the LIST OF FIGURE in Week-1
  • 6 ft Correct
In a certain non-concurrent force system it is found that summation of fx=-80lb, summation of fy=160lb and summation Mo=480lb-ft in a counterclockwise sense. Determine the point at which the resultant intersects the y-axis.NOTE: see figure 2 from the LIST OF FIGURE in Week-1
  • 7 ft
  • 6 ft Correct
  • none of the choices
  • 8 ft
In order to add ______ quantities, one has merely to make the algebraic addition.
  • Scalar Correct
In order to add ______quantities, one has merely to make the algebraic addition.
  • Vector
  • Resultants
  • Scalar Correct
  • magnitude
In practice, every three calendar years will have 365 days, and every fourth year is a “leap year”, which has 366 days, to make up for the extra quarter day over four years.
  • True Correct
In reality we are dealing with two sets ofindependent equations for the x and y directions and can envision the problemas a superposition of two completely independent motions that together areequivalent to the projectile motion.
  • True Correct
  • False
In the United States, the National Physical Laboratory (NPL), a division of United States Department of Commerce, regulates commercial measurements.
  • False Correct
In triangle DEF, side e = 8 cm, f = 10 cm, and the angle at D is 60°. Find side d.
  • 9.17 Correct
Inpractice, every three calendar years will have 365 days, and every fourth yearis a "leap year", which has 366 days, to make up for the extra quarter day overfour years.
  • True Correct
  • False
Inthe United States, the National Physical Laboratory (NPL), adivision of United States Department of Commerce, regulates commercial measurements.
  • True
  • False Correct
Intriangle DEF, side e = 8 cm, f = 10 cm, and the angle at D is 60=C2=B0.  Find side d.
  • 824
  • 721
  • 857
  • 917 Correct
It is a bob suspended from a very light string or rod.
  • simple pendulum Correct
It is a bob suspended from avery light string or rod.
  • simple pendulum Correct
  • none of the choices
  • period
  • waves
It is autonomous of the body's mass.
  • none of the choices
  • free fall Correct
  • projectile
  • free falling object
It is autonomous of the body’s mass
  • free fall Correct
It is decimalized system of measurement based on the metre and the gram.
  • Si units
  • None of the choices
  • Metric system Correct
  • English system
It is made of base unit for example, density.
  • derived units Correct
  • None of the choices
  • Base units
  • Metric units
It is tendency of a force to cause an object to rotate abut an axis.
  • Torque Correct
It is The Internationally recognized standard metric system.
  • English System
  • None of the choices
  • International System of Units Correct
  • Metric System
It is the science of describing the motion of objects using words, diagrams, numbers, graphs, and equations
  • kinematics Correct
It is the world’s most widely used system of units, both in everyday commerce and in science.
  • SI units Correct
It isthe science of describing the motion of objects using words, diagrams, numbers,graphs, and equations
  • statics
  • kinematics Correct
  • none of the choices
  • dynamics
Itis the world's most widely used system of units, both in everyday commerce andin science.
  • Metric system
  • English system
  • None of the choices
  • SI units Correct
Laws to regulate measurement were originally developed to prevent fraud.
  • True Correct
  • False
Once we know how long the projectile stayed in the air, finding the _____________ from the horizontal motion is simple.
  • range Correct
Once we know how long the projectile stayed inthe air, finding the _____________ from the horizontal motion is simple.
  • range Correct
  • trajectory height
  • free falling object
  • none of the choices
One atmosphere is equivalent to 14.7 pounds per square inch.
  • True Correct
One____________ would be to resolve a pair of forces using the parallelogram ortriangle method into a resultant.
  • logical method
  • none of the choices
  • algebraic method
  • graphical method Correct
Oneatmosphere is equivalent to 14.7 pounds per square inch.
  • True
  • False
Quantities that are fully described by a magnitude.
  • scalars Correct
Quantities that are fully described by both magnitude and a direction.
  • vectors Correct
Quantitiesthat are fully described by a magnitude.
  • scalars Correct
  • vectors
  • direction
  • none of the choices
Quantitiesthat are fully described by both magnitude and a direction.
  • acceleration
  • velocity
  • vectors Correct
  • scalars
Sinceall of these forces are not entirely parallel, the position of the resultantcan be established    using the ________or ________ methods. 
  • graphical, logical
  • graphical, algebraic Correct
  • none of the choices
  • analytical, graphical
Standard unit of length in metric system.
  • kilometer
  • decimeter
  • centimeter
  • None of the choices Correct
Standard unit of mass in metric system.
  • gram Correct
  • milligram
  • decigram
  • centigram
standard unit of volume in metric system
  • liter Correct
standard unit of volume in metric system.
  • kiloliter
  • centiliter
  • milliliter
  • liter Correct
Such an object will rise until its velocity is ______________.
  • 0 or zero Correct
Such an object will rise until its velocity is______________.
  • 0 or zero Correct
  • 5
  • 2
  • 3
Suzie applies a force of 40.0 N at an angle of 60 degrees up from the horizontal to a wooden rod using a spring scale. If she generates a torque of 73.0 N*m, how long was the rod?
  • 2.11 m Correct
Suzie applies a force of 40.0 N at an angle of60 degrees up from the horizontal to a wooden rod using a spring scale. If shegenerates a torque of 73.0 N*m, how long was the rod?
  • 211 m
  • 211 m
  • 211 m Correct
  • none of the choices
The ______ in simple harmonic motion is proportional and opposite to the displacement.
  • acceleration Correct
The 300-lb force and the 400-lb force shown in the figure are to be held in equilibrium by a third force F acting at an unknown angle θ with the horizontal. Determine the values of F. NOTE : see fig-10 from the LIST OF FIGURE in Week-1
  • F = 205.31 lb Correct
The 300-lb force and the 400-lb force shown in the figure are to be heldin equilibrium by a third force F acting at an unknown angle =CE=B8 with the horizontal.Determine the values of F. NOTE : see fig-10 from the LIST OF FIGURE in Week-1
  • 531 lb
  • F = 2031 lb
  • none of the choices
  • F = 20531 lb Correct
The angle between the two Force is scalar is one of the three quantities of torque magnitude.
  • True Correct
The cable and boom shown in the figure support a loadof 600 lb. Determine the tensile force T in the cable and the compressive for Cin the boom.NOTE : see fig-5 from the LIST OF FIGURE in Week-1
  • T = 43924 lb , C = 53794 lb Correct
  • T = 4324 lb , C = 5394 lb
  • T = 4924 lb , C = 5794 lb
  • none of the choices
the cylinders in the figure have the indicated weights and dimensions. Assuming smooth contact surfaces, determine the reactions at A, B, C, and D on the cylinders. NOTE : see fig-13 from the LIST OF FIGURES in Week-1
  • . A = 347.39 kN, B = 600 kN, C = 400.85 kN, D = 347.39 kN Correct
The cylinders in the figure have the indicated weightsand dimensions. Assuming smooth contact surfaces, determine the reactions at A,B, C, and D on the cylinders.NOTE : see fig-13 from the LIST OF FIGURES in Week-1 
  • A = 4739 kN, B = 60 kN, C = 4085 kN, D = 4739 kN
  • A = 34739 kN, B = 600 kN, C = 40085 kN, D = 34739 kN Correct
  • A = 3739 kN, B = 6000 kN, C = 400085 kN, D = 3739 kN
  • none of the choices
The distance of the mass below or above from the center position, or rest position.
  • displacement Correct
The distance of the mass below or above from thecenter position, or rest position.
  • waves
  • none of the choices
  • periodic motion
  • displacement Correct
The effect of a certain non-concurrent force system is defined by the following data: summation of fx=90kN, summation of fy=-60kN, and summation of Mo=360kN counter clockwise. Determine the point at which the resultant intersects the x-axis. Note: see Fig 1, from the LIST OF FIGURE from week-1.
  • 6 m Correct
The effect of a certainnon-concurrent force system is defined by the following data: summation of fx=90kN, summation of fy=-60kN, and summation of Mo=360kN counterclockwise. Determine the point at which the resultant intersects the x-axis.Note: see Fig 1, from the LIST OF FIGURE from week-1.
  • 8 m
  • 7 m
  • 6 m Correct
  • none of the choices
The figure represents the concurrent force system acting at a joint of a bridge truss. Determine the value of P and F to maintain equilibrium of the forces.
  • P = 165.45 lb, F = 412.44 lb Correct
The figure represents the concurrent force system acting at a joint of abridge truss. Determine the value of P and F to maintain equilibrium of theforces.NOTE : see fig-9 from the LIST OF FIGURE in Week-1
  • none of the choices
  • P = 26545 lb, F = 47244 lb
  • P = 6545 lb, F = 1244 lb
  • P = 16545 lb, F = 41244 lb Correct
This course is taught by the mentor:
Professor Leonila Lastimosa

Leonila Lastimosa

Doctor of Medicine at University of San Jose.

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