Answer:
Value of angle between vector a and b is  .
.
Explanation:
Vectors a and b have scalar product 6.00
Let  be the angle between a and b.
 be the angle between a and b.

ab cos  = 6 ...(1)
 = 6 ...(1)
Vectors a and b have magnitude of vector product 9.00

ab sin  = 9 ...(2)
 = 9 ...(2)
Dividing equation (2) by (1) we get

tan  = 1.5
 = 1.5

 =
 = 
Thus, value of angle between vector a and b is  .
.
 
        
             
        
        
        
<h2>Amoeba / Unicellular</h2><h2>Segmented worm / Earthworm</h2><h2>Unsegment worm / Tapeworm</h2><h2>Snail / Molluscs</h2><h2>Butterfly / A pair of antenna</h2><h2 /><h3><em>Unicellular: </em><u><em>aboema</em></u><em>: a </em><u><em>one-celled</em></u><em>, microscopic organism belonging to any of several families of rhizopods that move and feed using pseudopodia and reproduce by fission</em></h3><h3><em /></h3><h3><em>Segmented worms: segmented worms include the common </em><u><em>earthworm</em></u><em> and leeches.</em></h3><h3><em /></h3><h3><u><em>Unsegented worms:</em></u><em> unsegmented Worms Phylum Platyhelminthes & Nematoda. Worms. Worms are divided into three different phyla: Phylum Platyhelminthes, the flatworms. These include marine flatworms, flukes, and </em><u><em>tapeworms</em></u><em>.</em></h3><h3><em /></h3><h3><u><em>Molluscs</em></u><em>: molluscs examples: – </em><u><em>snails</em></u><em>, slugs, limpets, whelks, conchs, periwinkles, etc. Class Bivalvia – clams, oysters, mussels, scallops, cockles, shipworms, etc. The Class Scaphopoda contains about 400 species of molluscs called tooth or tusk shells, all of which are marine.</em></h3><h3><em /></h3><h3><u><em>Antennas</em></u><em>: </em><u><em>Nearly all insects have a pair of antennae</em></u><em> on their heads. They use their antennae to touch and smell the world around them. ... Insects are the only arthropods that have wings, and the wings are always attached to the thorax, like the legs.</em></h3>
        
             
        
        
        
5m
Explanation:
Given parameters: 
Weight of object = 50N 
Work done in lifting object = 250J 
Unknown:
Vertical height = ? 
Solution: 
The work done on an object is the force applied to lift a body in a specific direction. 
    Work done = force x distance
   Weight is a force in the presence of gravity; 
   Work done = weight x height of lifting 
Height of lifting = 
  Height of lifting =  = 5m
 = 5m
The vertical height through which the object was lifted is 5m
learn more: 
Work done brainly.com/question/9100769
#learnwithBrainly
 
        
             
        
        
        
Answer:
stryo:  1
wood: 1
ice: 1
brick: 2
aluminum: 2.7
Explanation:
d= mass/ total volume
(fyi: for aluminum, they did the subtraction wrong to find the total volume. it is actually 5 or 5.00) 
 
        
             
        
        
        
Hello there! 
For this:
1). Convert 10km to meters! 
2). Convert the 30 minutes into seconds! 
3). Use the following formula to solve for speed! 
speed= distance/time 
Note: The units should automatically work out to m/s. :) 
My goal is to make sure you understand the problem, which is why I won't be giving you the answer. It'll be more work now, but less work in the future! :) 
Hope this helped!
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