BigKrill just signed up and they study Economics 💵

TypicalSparrow just signed up and they study Information Technology 👩‍💻

MaleSalmon just signed up and they study Real Estate Management 🏘️

LightSilverfish just signed up and they study Information Technology 👩‍💻

ConceptualSpider just signed up and they study Hotel Management 🏨

AmericanHare upvoted the question #3996.

RationalCamel just signed up and they study Psychology 😌

LooseReptile just signed up and they study Real Estate Management 🏘️

MarginalTapir just signed up and they study Information Technology 👩‍💻

CautiousOwl downvoted the question #5873.

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

Is defined as the projection ofuniform circular motion on a straight line.

none of the choices
simple harmonic motion Correct
period
motion

The ______ in simple harmonicmotion is proportional and opposite to the displacement.

displacement
acceleration Correct
period
angular harmonic motion

The motion is repeated in thesame length of time.

none of the choices
acceleration
period
angular harmonic motion Correct

When elastic bodies vibratethey produce the simplest type of periodic motion.

simple harmonic motion or SHM Correct
period
simple pendulum
none of the choices

________________ 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

"Sum of all forces acting on a body is zero". This condition represents equilibrium's

First condition Correct

"Sum of all forcesacting on a body is zero". This condition represents equilibrium's

First condition Correct
Fourth condition
Second condition
Third condition

100 cm = ______ in?

39.37 in Correct

100 inches = ____________ meter

2.54 meter Correct

100 m = ______ yrd ?

109.361 yrd Correct

120 centigrade = _____________ Fahrenheit ?

248 Fahrenheit Correct

120 lbs = _____ kg?

54.4 kg Correct

120.5 centigrade = _______________ kelvin ?

393.65 kelvin Correct

122 meter = ______________ inches ?

4803.15 inches Correct

150 Fahrenheit =_______ kelvin?

338.706 kelvin Correct

150 gram = _______________ kilogram ?

0.15 kg Correct

170 centigrade = ______________ fahrenheit ?

338 fahrenheit Correct

175 m = _______________ yrd

191.382 Correct

180 kelvin = ____________ fahrenheit ?

none of the choices Correct

185 fahrenheit = __________ centigrade ?

85 centigrade Correct

200 Fahrenheit =_______ centigrade ?

93.33 centigrade Correct

21 yard = __________ foot ?

63 foot Correct

25.8 lbs = ___________ grams ?

11702.68 grams Correct

250 kelvin = ___________ centigrade ?

none of the choice Correct

280 feet = _____________ meter ?

85.344 meter Correct

350 Fahrenheit = _____________ Celsius

176.667 Correct

460 Kelvin = ____________ Fahrenheit

368.33 Correct

5.2 L = ________ gal ?

1.37 gal Correct

50 kg = ____ g ?

50,000 g Correct

500 g = __________ lbs?

1.1 lbs Correct

520 mm = _______________ inch

20.472 Correct

550 m =________ in ?

21,653.5 in Correct

560 Kelvin = ______________ Celsius

286.85 Correct

68 fahrenheit = _______________ kelvin ?

293.15 kelvin Correct

700 yard = __________ cm ?

64,008 cm Correct

86.3 liter = ____________ gal ?

22.798 gal Correct

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

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

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

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

A body at rest or moving with uniform velocity will have acceleration

min
1
0 Correct
max

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

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

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

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

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

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

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

A millimeter is about the thickness of a dime.

True Correct
False

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

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

A shot at an initial velocity at an angle above the horizon.

projectile Correct

A shot at an initial velocity at an angle abovethe horizon.

free fall
kinematics
none of the choices
projectile Correct

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

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

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

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

All free-falling objects (on Earth) accelerate at a rate of _____________.

9.8m/s2 Correct

All free-falling objects (on Earth) accelerateat a rate of _____________.

none of the choices
98m/s
98m/s2
98m/s2 Correct

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

An object that is falling under the sole influence of gravity.

free falling object Correct

An object that is falling under the soleinfluence of gravity.

range
none of the choices
free falling object Correct
free fall

An object thrown upward with velocity will rise to a height

trajectory height Correct

An object thrown upward with velocity will riseto a height.

free fall
trajectory height Correct
motion
range

At sea level, the freezing temperature of water is 32 degrees Fahrenheit and the boiling point of water is 212 degrees Fahrenheit

True Correct

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

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

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

Defined as the cross product of the lever arm distance vector and the force vector.

none of the choices Correct

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

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

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

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

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