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Exam 1: Units, Physical Quantities, and Vectors

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Exam 1: Units, Physical Quantities, and Vectors107 Questionsadd course
Exam 2: Motion Along a Straight Line59 Questionsadd course
Exam 3: Motion in Two or Three Dimensions50 Questionsadd course
Exam 4: Newtons Laws of Motion44 Questionsadd course
Exam 5: Applying Newtons Laws95 Questionsadd course
Exam 6: Work and Kinetic Energy54 Questionsadd course
Exam 7: Potential Energy and Energy Conservation55 Questionsadd course
Exam 8: Momentum, Impulse, and Collisions50 Questionsadd course
Exam 9: Rotation of Rigid Bodies26 Questionsadd course
Exam 10: Equilibrium and Elasticity50 Questionsadd course
Exam 11: Fluid Mechanics50 Questionsadd course
Exam 12: Gravitation50 Questionsadd course
Exam 13: Periodic Motion50 Questionsadd course
Exam 14: Mechanical Waves44 Questionsadd course
Exam 15: Sound and Hearing66 Questionsadd course
Exam 16: Temperature and Heat63 Questionsadd course
Exam 17: Thermal Properties of Matter58 Questionsadd course
Exam 18: The First Law of Thermodynamics52 Questionsadd course
Exam 19: The Second Law of Thermodynamics50 Questionsadd course
Exam 20: Electric Charge and Electric Field58 Questionsadd course
Exam 21: Gausss Law41 Questionsadd course
Exam 22: Electric Potential55 Questionsadd course
Exam 23: Capacitance and Dielectrics52 Questionsadd course
Exam 24: Current, Resistance, and Electromotive Force50 Questionsadd course
Exam 25: Direct-Current Circuits53 Questionsadd course
Exam 26: Magnetic Field and Magnetic Forces36 Questionsadd course
Exam 27: Sources of Magnetic Field51 Questionsadd course
Exam 28: Electromagnetic Induction39 Questionsadd course
Exam 29: Inductance26 Questionsadd course
Exam 30: Alternating Current49 Questionsadd course
Exam 31: Electromagnetic Waves47 Questionsadd course
Exam 32: The Nature and Propagation of Light28 Questionsadd course
Exam 33: Geometric Optics81 Questionsadd course
Exam 34: Interference33 Questionsadd course
Exam 35: Diffraction49 Questionsadd course
Exam 36: Relativity51 Questionsadd course
Exam 37: Photons: Light Waves Behaving As Particles38 Questionsadd course
Exam 38: Particles Behaving As Waves52 Questionsadd course
Exam 39: Quantum Mechanics40 Questionsadd course
Exam 40: Atomic Structure41 Questionsadd course
Exam 41: Molecules and Condensed Matter31 Questionsadd course
Exam 42: Nuclear Physics89 Questionsadd course
Exam 43: Particle Physics and Cosmology44 Questionsadd course
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Three forces are exerted on an object placed on a tilted floor. Forces are vectors. The three forces are directed as shown in the figure. If the forces have magnitudes F1 = 1.0 N, F2 = 8.0 N and F3 = 7.0 N, where N is the standard unit of force, what is the component of the net force Three forces are exerted on an object placed on a tilted floor. Forces are vectors. The three forces are directed as shown in the figure. If the forces have magnitudes F<sub>1</sub> = 1.0 N, F<sub>2</sub> = 8.0 N and F<sub>3</sub> = 7.0 N, where N is the standard unit of force, what is the component of the net force v<sub>net</sub> = <sub>1</sub> + <sub>2</sub> <sub>3</sub> parallel to the floor? vnet = Three forces are exerted on an object placed on a tilted floor. Forces are vectors. The three forces are directed as shown in the figure. If the forces have magnitudes F<sub>1</sub> = 1.0 N, F<sub>2</sub> = 8.0 N and F<sub>3</sub> = 7.0 N, where N is the standard unit of force, what is the component of the net force v<sub>net</sub> = <sub>1</sub> + <sub>2</sub> <sub>3</sub> parallel to the floor? 1 + Three forces are exerted on an object placed on a tilted floor. Forces are vectors. The three forces are directed as shown in the figure. If the forces have magnitudes F<sub>1</sub> = 1.0 N, F<sub>2</sub> = 8.0 N and F<sub>3</sub> = 7.0 N, where N is the standard unit of force, what is the component of the net force v<sub>net</sub> = <sub>1</sub> + <sub>2</sub> <sub>3</sub> parallel to the floor? 2 Three forces are exerted on an object placed on a tilted floor. Forces are vectors. The three forces are directed as shown in the figure. If the forces have magnitudes F<sub>1</sub> = 1.0 N, F<sub>2</sub> = 8.0 N and F<sub>3</sub> = 7.0 N, where N is the standard unit of force, what is the component of the net force v<sub>net</sub> = <sub>1</sub> + <sub>2</sub> <sub>3</sub> parallel to the floor? 3 parallel to the floor? Three forces are exerted on an object placed on a tilted floor. Forces are vectors. The three forces are directed as shown in the figure. If the forces have magnitudes F<sub>1</sub> = 1.0 N, F<sub>2</sub> = 8.0 N and F<sub>3</sub> = 7.0 N, where N is the standard unit of force, what is the component of the net force v<sub>net</sub> = <sub>1</sub> + <sub>2</sub> <sub>3</sub> parallel to the floor?

(Multiple Choice)
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Question 61

Vectors Vectors and Are shown in the figure. What is ? and Vectors and Are shown in the figure. What is ? Are shown in the figure. What is Vectors and Are shown in the figure. What is ? ? Vectors and Are shown in the figure. What is ?

(Multiple Choice)
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Question 62

Convert 1.2 × 10-3 to decimal notation.

(Multiple Choice)
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Question 63

For the vectors shown in the figure, find the magnitude and direction of the vector product For the vectors shown in the figure, find the magnitude and direction of the vector product × , assuming that the quantities shown are accurate to two significant figures. × For the vectors shown in the figure, find the magnitude and direction of the vector product × , assuming that the quantities shown are accurate to two significant figures. , assuming that the quantities shown are accurate to two significant figures. For the vectors shown in the figure, find the magnitude and direction of the vector product × , assuming that the quantities shown are accurate to two significant figures.

(Multiple Choice)
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Question 64

When determining the number of significant figures in a number, zeroes to the left of the decimal point are never counted.

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Question 65

Two boys searching for buried treasure are standing underneath the same tree. One boy walks 18 m east and then 18 m north. The other boy walks 16 m west and then 11 m north. Find the scalar product of their net displacements from the tree.

(Short Answer)
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Question 66

Vector Vector = 1.00 î + -2.00 ĵ and vector = 3.00 î + 4.00 ĵ. What are the magnitude and direction of vector = + ? = 1.00 î + -2.00 ĵ and vector Vector = 1.00 î + -2.00 ĵ and vector = 3.00 î + 4.00 ĵ. What are the magnitude and direction of vector = + ? = 3.00 î + 4.00 ĵ. What are the magnitude and direction of vector Vector = 1.00 î + -2.00 ĵ and vector = 3.00 î + 4.00 ĵ. What are the magnitude and direction of vector = + ? = Vector = 1.00 î + -2.00 ĵ and vector = 3.00 î + 4.00 ĵ. What are the magnitude and direction of vector = + ? + Vector = 1.00 î + -2.00 ĵ and vector = 3.00 î + 4.00 ĵ. What are the magnitude and direction of vector = + ? ?

(Multiple Choice)
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Question 67

Determine the angle between the directions of vector Determine the angle between the directions of vector = 3.00 î + 1.00 ĵ and Vector = -3.00 î + 3.00 ĵ. = 3.00 î + 1.00 ĵ and Vector Determine the angle between the directions of vector = 3.00 î + 1.00 ĵ and Vector = -3.00 î + 3.00 ĵ. = -3.00 î + 3.00 ĵ.

(Multiple Choice)
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Question 68

A rabbit trying to escape a fox runs north for 8.0 m, darts northwest for 1.0 m, then drops 1.0 m down a hole into its burrow. What is the magnitude of the net displacement of the rabbit?

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Question 69

A weight lifter can bench press 171 kg. How many milligrams (mg) is this?

(Multiple Choice)
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Question 70

0.0001776 can also be expressed as

(Multiple Choice)
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Question 71

If If = 3 î - ĵ + 4 and = x î + ĵ - 5 , find x so will be perpendicular to . = 3 î - ĵ + 4 If = 3 î - ĵ + 4 and = x î + ĵ - 5 , find x so will be perpendicular to . and If = 3 î - ĵ + 4 and = x î + ĵ - 5 , find x so will be perpendicular to . = x î + ĵ - 5 If = 3 î - ĵ + 4 and = x î + ĵ - 5 , find x so will be perpendicular to . , find x so If = 3 î - ĵ + 4 and = x î + ĵ - 5 , find x so will be perpendicular to . will be perpendicular to If = 3 î - ĵ + 4 and = x î + ĵ - 5 , find x so will be perpendicular to . .

(Short Answer)
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Question 72

The components of vector The components of vector are A<sub>x</sub> = +2.2 and A<sub>y</sub> = -6.9, and the components of vector Are given are B<sub>x</sub> = -6.1 and B<sub>y</sub> = -2.2. What is the magnitude of the vector - ? are Ax = +2.2 and Ay = -6.9, and the components of vector The components of vector are A<sub>x</sub> = +2.2 and A<sub>y</sub> = -6.9, and the components of vector Are given are B<sub>x</sub> = -6.1 and B<sub>y</sub> = -2.2. What is the magnitude of the vector - ? Are given are Bx = -6.1 and By = -2.2. What is the magnitude of the vector The components of vector are A<sub>x</sub> = +2.2 and A<sub>y</sub> = -6.9, and the components of vector Are given are B<sub>x</sub> = -6.1 and B<sub>y</sub> = -2.2. What is the magnitude of the vector - ? - The components of vector are A<sub>x</sub> = +2.2 and A<sub>y</sub> = -6.9, and the components of vector Are given are B<sub>x</sub> = -6.1 and B<sub>y</sub> = -2.2. What is the magnitude of the vector - ? ?

(Multiple Choice)
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Question 73

The value of the dot product of two vectors depends on the particular coordinate system being used.

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Question 74

If the dot product of two nonzero vectors is zero, the vectors must be perpendicular to each other.

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Question 75

The number 0.003010 has

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Question 76

If A > B, under what condition is | If A > B, under what condition is | - | = A - B? - If A > B, under what condition is | - | = A - B? | = A - B?

(Multiple Choice)
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Question 77

If If = -2î - 6ĵ + 2 And = -2î -2ĵ - 3 , which of the following numbers is closest to the magnitude of × ? = -2î - 6ĵ + 2 If = -2î - 6ĵ + 2 And = -2î -2ĵ - 3 , which of the following numbers is closest to the magnitude of × ? And If = -2î - 6ĵ + 2 And = -2î -2ĵ - 3 , which of the following numbers is closest to the magnitude of × ? = -2î -2ĵ - 3 If = -2î - 6ĵ + 2 And = -2î -2ĵ - 3 , which of the following numbers is closest to the magnitude of × ? , which of the following numbers is closest to the magnitude of If = -2î - 6ĵ + 2 And = -2î -2ĵ - 3 , which of the following numbers is closest to the magnitude of × ? × If = -2î - 6ĵ + 2 And = -2î -2ĵ - 3 , which of the following numbers is closest to the magnitude of × ? ?

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Question 78

If two vectors are perpendicular to each other, their cross product must be zero.

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Question 79

What is the vector product of What is the vector product of = 2.00 î + 3.00 ĵ + 1.00 And = 1)00 î - 3.00 ĵ - 2.00 ? = 2.00 î + 3.00 ĵ + 1.00 What is the vector product of = 2.00 î + 3.00 ĵ + 1.00 And = 1)00 î - 3.00 ĵ - 2.00 ? And What is the vector product of = 2.00 î + 3.00 ĵ + 1.00 And = 1)00 î - 3.00 ĵ - 2.00 ? = 1)00 î - 3.00 ĵ - 2.00 What is the vector product of = 2.00 î + 3.00 ĵ + 1.00 And = 1)00 î - 3.00 ĵ - 2.00 ? ?

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