USE C++ programming language 1) State whether the following declarations are valid or invalid. Give reasons for the invalid declarations and draw memory layout for the valid declarations i)int var, *ptr; ptr = &var; ii)float fvar; int *ptr = &fvar;
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USE C++
1) State whether the following declarations are valid or invalid. Give reasons for the invalid declarations and draw memory layout for the valid declarations
i)int var, *ptr;
ptr = &var;
ii)float fvar;
int *ptr = &fvar;
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- USE C++ programming language 1) State whether the following declarations are valid or invalid. Give reasons for the invalid declarations and draw memory layout for the valid declarations i)int var = 25;int *ptr = &var; ii)int var = 30;int* ptr = var;Explain these c++ statements void bar(int panam) {panam +=1;}(General math) a. A balance has the following weights: 100 lb, 50 lb, 10 lb, 5 lb, and 1 lb. The number of 100 lb and 50 lb weights required to weigh an object weighing WEIGHT pounds can be calculated by using the following C++ statements: //Determinethenumberof100lbweightsw100=int( WEIGHT/100)//Determinethenumberof50lbweightsw50=int( ( WEIGHTw100100 )/50) Using these statements as a starting point, write a C++ program that calculates the number of each type of weight needed to weigh a 789 lb object. b. Without compiling or running your program, manually check the effect of each statement in the program and determine what’s stored in each variable as each statement is encountered. c. After verifying that your algorithm works correctly, compile and run your program. Verify that the results your program produces are correct. After verifying that your program is working correctly, use it to determine the weights required to weigh a 626 lb object.
- (Hydraulics) a. Design, write, compile, and run a C++ program that calculates and displays the velocity of water flowing out of the tube shown in Figure 2.19. The velocity of water flowing into the tube is 1 ft/sec, the input tube radius is 0.75 in, and the output tube radius is 0.5 in. The output velocity is given by this formula: vout=vin( r in r out )2 v outistheoutputvelocity.v inistheinputvelocity.routistheradiusoftheoutputtube.r inistheradiusoftheinputtube. b. Manually check the values computed by your program. After verifying that your program is working correctly, modify it to determine the output velocity for a tube having an input radius of 1 in and an output radius of .75 in, when water is flowing into the tube at a rate of 1.5 ft/sec.State whether each of the following is true or false. If false, explain why.a) Structures may contain variables of only one data typeQuestion 05 Write C# programs to convert the following equations into corresponding C# statements (values of variables should be inputted by the user).
- What Is The Purpose Of Main( ) Function(General math) The perimeter, approximate surface area, and approximate volume of an in-ground pool are given by the following formulas: perimeter=2( length+width)volume=lengthwidthaveragedepthundergroundsurfacearea=2( length+width)averagedepth+lengthwidth Using these formulas as a basis, write a C++ program that accepts the length, width, and average depth measurements, and then calculates the pool’s perimeter, volume, and underground surface area. In writing your program, make these two calculations immediately after entering the input data:lengthwidthandlength+width. The results of these two calculations should be used as needed in the assignment statements for determining the perimeter, volume, and underground surface area without recalculating them for each equation. Verify your program’s results by doing a hand calculation, using the following test data :length=25feet,width=15feet,andaveragedepth=5.5feet. After verifying that your program is working, use it to complete the following chart:Please write code in c++ . Please follow the instructions given in the question .
- (Thermodynamics) a. Design, write, compile, and run a program that determines the work,W, performed by a piston engine providing a force of 1000 N over a distance of 15 centimeters. The following formula is used to determine the work performed: W=Fd F is the force provided by the piston in Newtons. d is the distance the piston moves in meters. b. Manually check the values computed by your program. After verifying that your program is working correctly, modify it to determine the work performed by six pistons, each providing a force of 1500 N over a distance of 20 centimeters.USE C++ programming language 1) State whether the following declarations are valid or invalid. Give reasons for the invalid declarations and draw memory layout for the valid declarations i)int *ptr = &var;int var = 25; ii)double* dptr1, dptr2;double dvar = 25.2;dptr1 = &dvar;dptr2 = &dvar;State which of the following are true and which are false. If false, explain your answer.c) The statement printf("a = 5;"); is a typical example of an assignment statement