How do you write 42000 in scientific notation? 42,000 (forty-two thousand) is an even five-digits composite number following 41999 and preceding 42001. In scientific notation, it is written as 4.2 × 104. Which of the following Cannot be able to express in scientific notation? 4 x 10⁻⁴ is already in scientific notation. Hence 2.300000 can […]

How is geologic time organized on the geologic time scale? The geologic history of the Earth is broken up into hierarchical chunks of time. From largest to smallest, this hierarchy includes eons, eras, periods, epochs, and ages. The Phanerozoic is subdivided into three major divisions: the Cenozoic, Mesozoic, and Paleozoic Eras. What does the geologic […]

Does gravity affect all matter? Although gravity affects all things, the attraction between two objects depends on a few things. One is MASS and the other is DISTANCE. Gravity acts on all masses equally, even though the effects on both masses may be different because gravity causes all objects to fall at the same constant […]

Which of the following is an example of a pure substance? Iron, steel, and water are some of the examples of a pure substance. Air may be a homogeneous mixture that’s often considered to be a pure substance. As we know diamond, sucrose, honey, and air all are pure substances. Pure water has two hydrogens […]

Do the amounts of reactants and products in chemical equilibrium have to be the same Why or why not? Chemical equilibrium is a dynamic process. The forward and reverse reactions continue to occur even after equilibrium has been reached. The rates of the forward and reverse reactions must be equal. The amount of reactants and […]

Which of the following pairs of substances can be used to make a buffer solution? Buffers do so by being composed of certain pairs of solutes: either a weak acid plus a salt derived from that weak acid or a weak base plus a salt of that weak base. For example, a buffer can be […]

Can you see a solar eclipse from anywhere? Getting a chance to see a total solar eclipse is rare. The moon’s shadow on Earth isn’t very big, so only a small portion of places on Earth will see it. You have to be on the sunny side of the planet when it happens. What must […]

How do I calculate average velocity? The sum of the initial and final velocity is divided by 2 to find the average. The average velocity calculator uses the formula that shows the average velocity (v) equals the sum of the final velocity (v) and the initial velocity (u), divided by 2. How do you find […]

Is fungi a unicellular? Fungi can be single celled or very complex multicellular organisms. They are found in just about any habitat but most live on the land, mainly in soil or on plant material rather than in sea or fresh water. Are fungi single celled eukaryotes? Animals, plants, algae and fungi are all eukaryotes. […]

How do you find the x intercept and y intercept of an equation? Finding x-intercepts and y-intercepts To determine the x-intercept, we set y equal to zero and solve for x. Similarly, to determine the y-intercept, we set x equal to zero and solve for y. To find the x-intercept, set y = 0 \displaystyle […]