Does photoelectric current depend on frequency? Photoelectric effect can be explained as: it takes a specific energy to launch an electron from a metal surface. This energy is the work function which relies upon the metal. Electrons can pick up energy by collaborating with photons. Current is not dependent on the frequency of photons. What […]
Why is poverty a threat?
Why is poverty a threat? The indignity and sufferings of people living in poverty is a humanitarian tragedy. It is a challenge putting pressure on all societies. Poverty is the root cause of many problems, posing a severe and distinct threat to food security, climate change resilience, insecurity, democracy, human rights amongst others. What poverty […]
How do you arrange negative numbers in ascending order?
How do you arrange negative numbers in ascending order? Arrange the following integers in ascending order, putting the smallest first. Look at the negative numbers first. The smallest negative number is -35, then -2. Then look at the positive numbers. How are numbers arranged in increasing or decreasing order? Suppose for example, 81, 97, 123, […]
How can matter be transferred?
How can matter be transferred? In ecosystems, matter and energy are transferred from one form to another. Matter refers to all of the living and nonliving things in that environment. Nutrients and living matter are passed from producers to consumers, then broken down by decomposers. Decomposers break down dead plant and animal matter. How energy […]
What are the steps in set and drift?
What are the steps in set and drift? Set and drift are two terms used to describe the effect currents have on your boat…. Find the distance to your destination in nautical miles. Divide this distance by your average speed in knots. Multiply this time by the average speed (drift) of the current. From your […]
What are the four main blood vessels?
What are the four main blood vessels? The major blood vessels connected to your heart are the aorta, the superior vena cava, the inferior vena cava, the pulmonary artery (which takes oxygen-poor blood from the heart to the lungs where it is oxygenated), the pulmonary veins (which bring oxygen-rich blood from the lungs to the […]
What happens when two neutral charged objects are rubbed together?
What happens when two neutral charged objects are rubbed together? When an atom has an equal number of protons and electrons, the charges cancel each other and the atom is said to be neutral. Rubbed together in a dry environment, some items have lost electrons and become positively charged, while others have gained electrons and […]
How do you analyze timbre?
How do you analyze timbre? There are many ways to analyse timbre. Some of the components we might describe include: The strength of the note’s harmonics, and how these change over time (think of a muted trumpet, or wah-wah guitar) Overtones and noise components (including clicks, scrapes and breaths) What is the difference between tone […]
How do the equations y MX and Y KX compare?
When the concentration of solute inside and outside a cell is the same?
When the concentration of solute inside and outside a cell is the same? Tonicity and cells Tonicity of solution Solute concentration Water moves… Hypertonic Higher solute in solution than in cell Out of the cell Isotonic Equal amounts of solute in cell and solution Into and out of cell at the same time Hypotonic Lower […]