Practical background and basic concepts of flat vector ppt (Changchun version) courseware

The actual background and basic concepts of flat vectors. Read page 74 of the textbook and consider the following questions: 1. What are the characteristics of physical quantities such as time, distance, and work? What is it called? 2. What are the characteristics of physical quantities such as force, displacement and velocity? What is it called? 3. What is a vector? Quantity? Detection: 1. Is age, height, length and area a vector or a quantity? (5 points) 2. What are the two elements of a vector? (5 points) 3. The gravity of an object is 18N, please draw a schematic (1cm means 10N) (5 points)

We are professional manufacturer, which is established in 2005 and focus on export business to Europe, USA and Australia.

We specialized in producing various kinds of Paper napkins, like Lunch Paper Napkin. We can produce like 30cm x 30cm, 33cm x 33cm etc.

We provide customized logo printing service. We can print 1 or 2 color logo on the napkins. The water ink that we used has passed European Food contact grade test.

We supply different kinds of materials for Luncheon napkin paper products, like Virgin wood pulp, Recycled Pulp, Bamboo Pulp (Tree free).

The Material that we used are 100% biodegradable and compostable, Chlorine free and reach European food contact grade standard.

Lunch Napkin PaperLunch Paper NapkinLunch Napkin Paper

Lunch Paper Napkin

Lunch Napkins,Printed Napkin Paper,Custom Napkin Paper,Disposable Lunch Napkins

Bobo Tissue Product Manufacturer ,