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Calculus-Based Physics 1

Showing 1-75 of 225 answers

 An airplane acceleratesdown a runway at 3.20 m/s2 for 32.8 s until is finally liftsoff the ground. Determine the distance traveled before takeoff.
  • 1715 m
  • 1720 m Correct
  • 1725 m
  • none of the choices
252
 Is defined as the projection ofuniform circular motion on a straight line.
  • none of the choices
  • simple harmonic motion Correct
  • period
  • motion
374
 The ______ in simple harmonicmotion is proportional and opposite to the displacement.
  • displacement
  • acceleration Correct
  • period
  • angular harmonic motion
294
 The motion is repeated in thesame length of time.
  • none of the choices
  • acceleration
  • period
  • angular harmonic motion Correct
318
 When elastic bodies vibratethey produce the simplest type of periodic motion.
  • simple harmonic motion or SHM Correct
  • period
  • simple pendulum
  • none of the choices
167
1
________________ is defined as the forceswhich lies in the line of activity but do not intersect or forms a parallel ata common point.
  • Parallel Forces
  • Non-Concurrent Forces Correct
  • Forces
  • none of the choices
73
"Sum of all forces acting on a body is zero". This condition represents equilibrium's
  • First condition Correct
102
"Sum of all forcesacting on a body is zero". This condition represents equilibrium's
  • First condition Correct
  • Fourth condition
  • Second condition
  • Third condition
250
100 cm = ______ in?
  • 39.37 in Correct
62
100 inches = ____________ meter
  • 2.54 meter Correct
109
100 m = ______ yrd ?
  • 109.361 yrd Correct
137
1
120 centigrade = _____________ Fahrenheit ?
  • 248 Fahrenheit Correct
171
120 lbs = _____ kg?
  • 54.4 kg Correct
368
120.5 centigrade = _______________ kelvin ?
  • 393.65 kelvin Correct
221
122 meter = ______________ inches ?
  • 4803.15 inches Correct
133
150 Fahrenheit =_______ kelvin?
  • 338.706 kelvin Correct
321
150 gram = _______________ kilogram ?
  • 0.15 kg Correct
119
170 centigrade = ______________ fahrenheit ?
  • 338 fahrenheit Correct
164
175 m = _______________ yrd
  • 191.382 Correct
100
180 kelvin = ____________ fahrenheit ?
  • none of the choices Correct
123
185 fahrenheit = __________ centigrade ?
  • 85 centigrade Correct
169
200 Fahrenheit =_______ centigrade ?
  • 93.33 centigrade Correct
289
21 yard = __________ foot ?
  • 63 foot Correct
174
25.8 lbs = ___________ grams ?
  • 11702.68 grams Correct
94
250 kelvin = ___________ centigrade ?
  • none of the choice Correct
181
280 feet = _____________ meter ?
  • 85.344 meter Correct
87
350 Fahrenheit = _____________ Celsius
  • 176.667 Correct
84
460 Kelvin = ____________ Fahrenheit
  • 368.33 Correct
323
5.2 L = ________ gal ?
  • 1.37 gal Correct
300
50 kg = ____ g ?
  • 50,000 g Correct
160
1
500 g = __________ lbs?
  • 1.1 lbs Correct
90
1
520 mm = _______________ inch
  • 20.472 Correct
124
550 m =________ in ?
  • 21,653.5 in Correct
123
560 Kelvin = ______________ Celsius
  • 286.85 Correct
263
68 fahrenheit = _______________ kelvin ?
  • 293.15 kelvin Correct
63
700 yard = __________ cm ?
  • 64,008 cm Correct
78
86.3 liter = ____________ gal ?
  • 22.798 gal Correct
84
A 300-lb box is held at rest on a smooth plane by a force P inclined at an angle θ with the plane as shown in the figure. If θ = 45°, determine the value of P and the normal pressure N exerted by the plane. NOTE : see fig 7 from the LIST OF FIGURE in Week-1
  • P = 212.13 lb , N = 409.81 lb Correct
174
A 300-lb box is held at rest on a smooth plane by aforce P inclined at an angle =CE=B8 with the plane as shown in the figure. If =CE=B8 45=C2=B0, determine the value of P and the normal pressure N exerted by the plane.NOTE : see fig 7 from the LIST OF FIGURE in Week-1
  • P = 21213 lb , N = 40981 lb
  • P = 21213 lb , N = 40981 lb
  • P = 21213 lb , N = 40981 lb Correct
  • none of the choices
94
A 5.0 m-long uniform beam is held in position by a cord as shown in the diagram. If the tension in the cord is 8.0 N, what is the weight of the beam?
  • 18 N Correct
102
A 5.0 m-long uniformbeam is held in position by a cord as shown in the diagram. If the tension inthe cord is 8.0 N, what is the weight of the beam?                                                      
  • 18 N Correct
  • 96 N
  • 48 N
  • 80 N
140
A body at rest or moving with uniform velocity will have acceleration
  • min
  • 1
  • 0 Correct
  • max
152
1
A bolt connecting the main and rear frame of a mountain bike requires of 15 N.m to tighten. If you are capable of applying 40N of force to a wrench in any given direction, what is the minimum length of the wrench that will result in the required torque?
  • 0.375 m Correct
225
A bolt connecting the main and rear frame of amountain bike requires of 15 N.m to tighten. If you are capable of applying 40Nof force to a wrench in any given direction, what is the minimum length of thewrench that will result in the required torque?
  • 375 m
  • 0375 m Correct
  • 375 m
  • none of the choices
161
A car starts from rest and accelerates uniformly over a time of 5.21 seconds for a distance of 110 m. Determine the acceleration of the car.
  • 8.10 m/s2 Correct
303
2
A car starts from restand accelerates uniformly over a time of 5.21 seconds for a distance of 110 m.Determine the acceleration of the car.
  • 8110 m/s2 
  • 810 m/s2  Correct
  • none of the choices
  • 810 m/s2 
329
1
A cylinder weighing 400 lb. is held against a smoothincline by means of the weightless rod AB in the figure. Determine the forces Pand N exerted on the cylinder by the rod and the incline.NOTE : see fig-6 from the LIST OF FIGURE in Week-1
  • P = 09038 N , N = 41860 lb Correct
  • P = 9038 N , N = 41860 lb
  • none of the choices
  • P = 9038 N , N = 41860 lb
112
A feather is dropped on the moon from a height of 1.40 meters. The acceleration of gravity on the moon is 1.67 m/s2 . Determine the time for the feather to fall to the surface of the moon.
  • 1.29 sec Correct
237
A feather is dropped onthe moon from a height of 1.40 meters. The acceleration of gravity on the moonis 1.67 m/s2. Determine the time for the feather to fall to thesurface of the moon.
  • none of the choices
  • 139 sec
  • 139 sec
  • 129 sec Correct
73
1
A millimeter is about the thickness of a dime.
  • True Correct
  • False
86
A race car accelerates uniformly from 18.5 m/s to 46.1 m/s in 2.47 seconds. Determine the acceleration of the car.
  • 11.2 m/s2 Correct
361
1
A race car accelerates uniformly from 18.5 m/s to46.1 m/s in 2.47 seconds. Determine the acceleration of the car. 
  • 121 m/s2 
  • 112 m/s2 
  • none of the choices
  • 112 m/s2  Correct
89
A shot at an initial velocity at an angle above the horizon.
  • projectile Correct
108
A shot at an initial velocity at an angle abovethe horizon.
  • free fall
  • kinematics
  • none of the choices
  • projectile Correct
69
A uniform rod of length 50cm and mass 0.2kg is placed on a fulcrum at a distance of 40cm from the left end of the rod. At what distance from the left end of the rod should a 0.6kg mass be hung to balance the rod?
  • 45 cm Correct
227
A uniform rod of length 50cm and mass 0.2kg isplaced on a fulcrum at a distance of 40cm from the left end of the rod. At whatdistance from the left end of the rod should a 0.6kg mass be hung to balancethe rod?
  • none of the choices
  • 45 cm
  • 54 cm
  • 45 cm Correct
355
Add the following vectors and determine the resultant. 3.0 m/s, 45 deg and 5.0 m/s, 135 deg
  • 5.38 m/s Correct
79
Add the following vectors anddetermine the resultant. 3.0 m/s, 45 deg and 5.0 m/s, 135 deg
  • 638 m/s
  • 538 m/s Correct
  • 438 m/s
  • 338 m/s
65
1
All free-falling objects (on Earth) accelerate at a rate of _____________.
  • 9.8m/s2 Correct
79
All free-falling objects (on Earth) accelerateat a rate of _____________.
  • none of the choices
  • 98m/s
  • 98m/s2
  • 98m/s2 Correct
101
An airplane accelerates down a runway at 3.20 m/s2 for 32.8 s until is finally lifts off the ground. Determine the distance traveled before takeof
  • 1720 m Correct
84
An object that is falling under the sole influence of gravity.
  • free falling object Correct
131
1
An object that is falling under the soleinfluence of gravity.
  • range
  • none of the choices
  • free falling object Correct
  • free fall
127
An object thrown upward with velocity will rise to a height
  • trajectory height Correct
59
An object thrown upward with velocity will riseto a height.
  • free fall
  • trajectory height Correct
  • motion
  • range
133
At sea level, the freezing temperature of water is 32 degrees Fahrenheit and the boiling point of water is 212 degrees Fahrenheit
  • True Correct
75
Commonly defined as the amount of heat energy required to raise the temperature of one gram of water by one degree celsius.
  • none of the choices
  • joules
  • gravity
  • calorie Correct
155
2
Cords are loop around a small spacer separating two cylinders each weighing 400 lb. and pass, as shown in the fig-12 from the LIST OF FIGURE in Week-1 over a frictionless pulley to weights of 200 lb. and 400 lb. Determine the angle θ.
  • θ = 60 degrees Correct
168
Cords are loop around a small spacer separating twocylinders each weighing 400 lb. and pass, as shown in the fig-12 from the LIST OF FIGURE in Week-1  over africtionless pulley to weights of 200 lb. and 400 lb. Determine the angle =CE=B8. 
  • =CE=B8 = 76 degrees
  • none of the choices
  • =CE=B8 = 60 degrees Correct
  • =CE=B8 = 70 degrees
109
Defined as the cross product of the lever arm distance vector and the force vector.
  • none of the choices Correct
106
Determine the magnitude of P and F necessary to keep the concurrent force system in the figure in equilibrium. NOTE : see fig-8 from the LIST OF FIGURE in week-1
  • P = -133.25 N, F = 86.37 N Correct
240
Determine the magnitude of P and F necessary to keepthe concurrent force system in the figure in equilibrium.NOTE : see fig-8 from the LIST OF FIGURE in week-1
  • P = -13325 N, F = 8637 N Correct
  • P = -13325 N, F = -8637 N
  • none of the choices
  • P = 13325 N, F = -8637 N
138
Determine the resultant of the force system shown inthe figure and its x and y intercepts.NOTE: see fig-3 from the LIST OF FIGURE in WEEK-1
  • 164311 lb
  • none of the choices
  • 161314 lb Correct
  • 163114 lb
205
1
Determine the values of =CE=B1 and =CE=B8 so that the forcesshown in the figure will be in equilibrium.
  •  =CE=B1 =657 degrees and =CE=B8 = 296 degrees
  •  =CE=B1 =457 degrees and =CE=B8 = 5896 degrees
  •  =CE=B1 =4657 degrees and =CE=B8 = 2896 degrees Correct
  • none of the choices
93
Determine the values of α and θ so that the forces shown in the figure will be in equilibrium
  • α =46.57 degrees and θ = 28.96 degrees Correct
137
1
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