Yes, the statement is false. Lenses may be planar, convex, or concave, but they cannot be both convex and concave at the same time. Each lens can only have one of these shapes.
A false statement about a heat pump could be that it only works in warm climates. In reality, heat pumps are versatile heating and cooling systems that can operate effectively in a wide range of climates, including cooler regions.
Matter cannot be subdivided is a false statement. Matter can be broken down into smaller particles such as atoms, which are the building blocks of matter.
False. The wavelength of a wave is measured from crest to crest or trough to trough, representing the distance between two corresponding points on a wave cycle.
True. When a wave reflects from a fixed boundary, it changes direction of travel as it rebounds back from the boundary. The wave may also be inverted depending on the type of boundary. Additionally, the wave can experience a phase shift upon reflection.
If the statement is false, then "This statement is false", is a lie, making it "This statement is true." The statement is now true. But if the statement is true, then "This statement is false" is true, making the statement false. But if the statement is false, then "This statement is false", is a lie, making it "This statement is true." The statement is now true. But if the statement is true, then... It's one of the biggest paradoxes ever, just like saying, "I'm lying right now."
Yes, a statement can be true or false but without knowing what the statement is no-one can possibly say whether it is true or it is false.
A counterexample is a specific case in which a statement is false.
Let us consider "This statement is false." This quotation could also be read as "This, which is a statement, is false," which could by extent be read as "This is a statement and it is false." Let's call this quotation P. The statement that P is a statement will be called Q. If S, then R and S equals R; therefore, if Q, then P equals not-P (since it equals Q and not-P). Since P cannot equal not-P, we know that Q is false. Since Q is false, P is not a statement. Since P says that it is a statement, which is false, P itself is false. Note that being false does not make P a statement; all things that are statements are true or false, but it is not necessarily true that all things that are true or false are statements. In summary: "this statement is false" is false because it says it's a statement but it isn't.
False
False. A declaration is a public statement.
A counter example is a statement that shows conjecture is false.
False
false
The below statement is false. The above statement is true. I am lying. I am lying when I say I am lying.
More ATP is produced than is used.
True. In glycolysis, 2 ATP molecules are consumed during the energy investment phase, but a net gain of 2 ATP molecules is produced during the energy payoff phase, resulting in a total net gain of 2 ATP molecules.