How far will the football travel before it lands? How far will the football travel before it lands? Round your answer to the nearest tenth. Lacie kicks a football from ground level at a velocity of 13.9 m/s and at an angle of 25.0° to the ground. You have determined that the football would travel […]
What is the main function of a cell wall?
What is the main function of a cell wall? The cell wall surrounds the plasma membrane of plant cells and provides tensile strength and protection against mechanical and osmotic stress. It also allows cells to develop turgor pressure, which is the pressure of the cell contents against the cell wall. What kind of molecules pass […]
What are the two parts of cell division?
What are the two parts of cell division? There are two types of cell division: mitosis and meiosis. Most of the time when people refer to “cell division,” they mean mitosis, the process of making new body cells. Meiosis is the type of cell division that creates egg and sperm cells. How many DNA is […]
How does disruption in the food chain affect the ecosystem?
How does disruption in the food chain affect the ecosystem? Endangerment and extinction of species A disruption in the food chain usually also implies that many animals and plants may become endangered or even extinct. Depending on the severity of the decrease in population due to disruptions in the food chain, whole ecosystems may significantly […]
What causes dynamo effect?
What causes dynamo effect? Currents in Earth’s core generate a magnetic field according to a principle known as the dynamo effect. In this dynamo mechanism, fluid motion in Earth’s outer core moves conducting material (liquid iron) across an already existing weak magnetic field and generates an electric current. How does a dynamo work? A voltage […]
How many water molecules are there on Earth?
How many water molecules are there on Earth? Avogadro’s number tells us there are 6.022 x 1023 molecules of water per mole of water. So, next we calculate how many molecules there are in a drop of water, which we determined contains 0.002775 moles: molecules in a drop of water = (6.022 x 1023 molecules/mole) […]
What is the ratio of amplitudes?
What is the ratio of amplitudes? The actual amplitude in any year, expressed as a proportion of the average amplitude taken over a long period is called the amplitude ratio. It affords a measure of departure from normal seasonal variation. What is the ratio of their frequencies? ∴ Ratio of frequencies remains same =1:1. What […]
Does exercising after eating help lose weight?
What percent of 16 year olds get in car accidents?
What percent of 16 year olds get in car accidents? Teen traffic fatalities About 3,000 teens die every year in traffic accidents, and approximately 20 percent of 16 year-olds will be involved in an accident in their first year of driving. What is the most dangerous day of the week to drive? Saturday What time […]
What are the three types of seafloor sediments?
What are the three types of seafloor sediments? There are three kinds of sea floor sediment: terrigenous, pelagic, and hydrogenous. Terrigenous sediment is derived from land and usually deposited on the continental shelf, continental rise, and abyssal plain. Where is the highest density water in the world? So, the density of ocean water increases and […]