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True or False?

Answer 17

Question 18

The class named Graphics2D is a superclass of the class named Graphics .

True or False?

Answer 18

Question 19

Translating the origin from the default position at the upper-left corner of a Canvas object to the center of the Canvas object is equivalent to creating a new coordinate frame as explained by Kjell.

True or False?

Answer 19

Question 20

The default direction for increasing vertical coordinate values in a Canvas object is down the screen.

True or False?

Answer 20

Question 21

The default direction for increasing horizontal coordinate values in a Canvas object is from right to left across the screen.

True or False?

Answer 21

Question 22

According to Kjell, a line drawn on the screen using an object of the Line2D.Double class is a true line segment.

True or False?

Answer 22

Question 23

Objects instantiated from the classes named Point2D.Double and Line2D.Double are well suited for inclusion in mathematical operations.

True or False?

Answer 23

Question 24

Creation of 2D and 3D graphics requires that you always display the points.

True or False?

Answer 24

Question 25

A vector is a geometrical object that has two properties: length and direction." He also tells us, "A vector does not have a position.

True or False?

Answer 25

Question 26

A vector must always specify a position.

True or False?

Answer 26

Question 27

Three real numbers are required to represent a vector in a 2D system.

True or False?

Answer 27

Question 28

A column matrix can be used to represent a point and can also be used to represent a vector.

True or False?

Answer 28

Question 29

Different column matrices can be used to represent the same vector in different reference frames, in which case, the contents of the matrices will bedifferent.

True or False?

Answer 29

Question 30

The two (or three) real number values contained in a column matrix to represent a point specify an absolute location in space relative to the currentcoordinate frame.

True or False?

Answer 30

Question 31

The two (or three) real number values contained in a column matrix to represent a vector (in 2D or 3D) specify a displacement of a specific distance from an arbitrary point in an arbitrary direction.

True or False?

Answer 31

Question 32

With regard to a vector, in 2D, the two values contained in a column matrix represent the displacements along three orthogonal axes.

True or False?

Answer 32

Question 33

In the case of 2D, the length of the vector is the length of the hypotenuse of a right triangle formed by the x and y displacement values.

True or False?

Answer 33

Question 34

In 2D, the direction of a vector can be determined from the angle formed by the x-displacement and the line segment that represents the hypotenuse of aright triangle formed by the x, y, and z displacements.

True or False?

Answer 34

Question 35

A point is an absolute location , but a vector is a displacement .

True or False?

Answer 35

Question 36

This program instantiates objects from the following non-static top-level classes belonging to the class named GM2D01 :

  • GM2D01.ColMatrix
  • GM2D01.Line
  • GM2D01.Point
  • GM2D01.Vector

Questions & Answers

A golfer on a fairway is 70 m away from the green, which sits below the level of the fairway by 20 m. If the golfer hits the ball at an angle of 40° with an initial speed of 20 m/s, how close to the green does she come?
Aislinn Reply
cm
tijani
what is titration
John Reply
what is physics
Siyaka Reply
A mouse of mass 200 g falls 100 m down a vertical mine shaft and lands at the bottom with a speed of 8.0 m/s. During its fall, how much work is done on the mouse by air resistance
Jude Reply
Can you compute that for me. Ty
Jude
what is the dimension formula of energy?
David Reply
what is viscosity?
David
what is inorganic
emma Reply
what is chemistry
Youesf Reply
what is inorganic
emma
Chemistry is a branch of science that deals with the study of matter,it composition,it structure and the changes it undergoes
Adjei
please, I'm a physics student and I need help in physics
Adjanou
chemistry could also be understood like the sexual attraction/repulsion of the male and female elements. the reaction varies depending on the energy differences of each given gender. + masculine -female.
Pedro
A ball is thrown straight up.it passes a 2.0m high window 7.50 m off the ground on it path up and takes 1.30 s to go past the window.what was the ball initial velocity
Krampah Reply
2. A sled plus passenger with total mass 50 kg is pulled 20 m across the snow (0.20) at constant velocity by a force directed 25° above the horizontal. Calculate (a) the work of the applied force, (b) the work of friction, and (c) the total work.
Sahid Reply
you have been hired as an espert witness in a court case involving an automobile accident. the accident involved car A of mass 1500kg which crashed into stationary car B of mass 1100kg. the driver of car A applied his brakes 15 m before he skidded and crashed into car B. after the collision, car A s
Samuel Reply
can someone explain to me, an ignorant high school student, why the trend of the graph doesn't follow the fact that the higher frequency a sound wave is, the more power it is, hence, making me think the phons output would follow this general trend?
Joseph Reply
Nevermind i just realied that the graph is the phons output for a person with normal hearing and not just the phons output of the sound waves power, I should read the entire thing next time
Joseph
Follow up question, does anyone know where I can find a graph that accuretly depicts the actual relative "power" output of sound over its frequency instead of just humans hearing
Joseph
"Generation of electrical energy from sound energy | IEEE Conference Publication | IEEE Xplore" ***ieeexplore.ieee.org/document/7150687?reload=true
Ryan
what's motion
Maurice Reply
what are the types of wave
Maurice
answer
Magreth
progressive wave
Magreth
hello friend how are you
Muhammad Reply
fine, how about you?
Mohammed
hi
Mujahid
A string is 3.00 m long with a mass of 5.00 g. The string is held taut with a tension of 500.00 N applied to the string. A pulse is sent down the string. How long does it take the pulse to travel the 3.00 m of the string?
yasuo Reply
Who can show me the full solution in this problem?
Reofrir Reply
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Source:  OpenStax, Game 2302 - mathematical applications for game development. OpenStax CNX. Jan 09, 2016 Download for free at https://legacy.cnx.org/content/col11450/1.33
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