Determine whether of the following two arguments is valid ?
Given : If you work hard, then you pass the course.
Given : You did not pass the course.
Conclusion : You did not work hard .

determine whether of the following two arguments is valid ? Given : If you work hard, then you pass the course. Given : You did not work hard. Conclusion : You did not pass the course.

If you strike a tuning fork hard, you get a louder sound.

How will you test whether a given rod is a magnet or not?

Check whether the given sentence is a statement or not: "May you live long !"

How would you confirm that a colourless liquid given to you is pure water ?

You are reshelving books in a library. You lift a book from the floor to the top shelf. The kinetic energy of the book on the floor was zero and the kinetic energy of the book on the top shelf is zero, so no change occurs in the kinetic energy even though you did some work in lifting the books. Is the work-kinetic energy theorem violated?

In Physics, work is not done when you push a wall.

How will you test whether a given rod is made of iron or not?

How will you test whether a given rod is made of iron or copper?