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1.     The density of a substance is 2500 kg/m3. What volume will 250 kg of this substance occupy?

A.   0.001 m3                                                                                                     C. 0.10 m3

B.    0.01 m3                                                                    D. 1.0 m3

 

2.     In a typical hydraulic press, a force of 20 N is exerted on the small piston of area 0.050 m². The force exerted by the large piston on the load if it has an area of 0.50 m² will be

A.   200 N                                                                        C. 50 N

B.    100 N                                                                        D. 10 N 


Consider the following situation׃ the force exerted on the small piston of a hydraulic lift is 160 N. The areas of the small piston and the large piston are 0.5 m2 and 1.0 m2, respectively. 


1.     What is the pressure exerted on the large piston?

A.   80 Pa                                                                        C. 320 Pa

B.    160 Pa                                                                      D. 640 Pa

 

2.     What is the output force on the large piston?

A.   80 N                                                                          C. 320 N

B.    160 N                                                                        D. 640 N

 

3.     Which term in Bernoulli’s theorem is referred to as the pressure head?

A.   mgh    C. v2/2g

B.     P𝑚/𝜌     D.    P/pg

The brain volumes (centemeters cubed) of 20 brains have a mean of 1115.9 cm cubed and a standard deviation of 120.9 cm cubed. Use the given standard deviation and the range rule of thumb to identify the limits separating values that are significantly low or significantly high. For such​ data, would a brain volume of 1377.7 cm cubed be significantly​ high?


obtain the equation of motion for Foucault pendulum

Problem 3: A multi-graph is a graph which may have more than one edge (parallel edges) between a pair of vertices. Suppose that these graphs may also have self-loops (an edge from a vertex to itself). Given such a graph G as an input, print the adjacency list representation of an equivalent undirected graph G’, in which all the multiple edges between two vertices are replaced by a single edge, and all self-loops are removed. Your algorithm should run in O(n+m) time. Input Format: The input is a text file which gives the adjacency list representation of the multigraph. The first line specifies the number of vertices and edges n and m. The next m lines specify the m edges, one edge per line. Assume the vertices are numbered 0 to n-1.

Output Format: The adjacency list representation of the new graph G’.

Sample Input (for the graph above): 3 6

0 0

0 2

2 2

0 2

0 2

0 1

Sample Output: Adjacency list representation of G’: 0: 1 2 1: 0 2: 0


0.5M potassium hydroxide solution is needed in the qualitative determination of anthraquinone glycosides in plants. what is the moles of solute


What Are Mitochondria, and What Role Do They Play in Metabolism?


 Given an input undirected graph, create and print the adjacency list and adjacency matrix representations of the graph. Input Format: The input is a text file which describes an undirected graph. The first line of the file specifies n & m, the number of vertices and number of edges in the graph respectively. The next m lines specify the m edges of the graph, one line per edge. An edge is described by its end points. If the number of vertices is n, assume that the vertices of the graph are numbered (0,1,..n-1). Output Format: Print the adjacency list and adjacency matrix representation of the graph. In the adjacency list representation, for a given vertex, the order of its adjacent vertices does not matter.


Design a 'book' class with title, author,publisher, price and author's royalty as instance variables. Provide getter and setter properties for all variables. Also define a method royalty() to calculate royalty amount author can expect to receive the following royalties :10% of the retail price on the first 500 copies ;12.5% for the next, 1000 copies sold, then 15% for all further other copies sold


You can’t see clearly underwater with the naked eye, but you can if you wear a face mask or goggles (with air between your eyes and the mask or goggles). Why is there a difference? Could you instead wear eyeglasses (with water between your eyes and the eyeglasses) in order to see underwater? If so, should the lenses be converging or diverging? Explain.



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