What are the forces acting on a basketball? A basketball approaches a hoop From the moment it leaves a player’s hand, the only forces acting on it are gravity (vertically downwards) and air resistance (opposing the direction of motion). Gravity causes the ball to accelerate downwards throughout its flight. How high can you throw a […]
Is it okay to sit down after eating?
Is it okay to sit down after eating? Good posture can help alleviate stomach discomfort related to reflux. Slouching or, even worse, lying down right after eating can encourage food to move back up and out of your stomach into your esophagus. How do you kill bacteria in the small intestine? We then kill the […]
What are the three most important plant nutrients?
What are the three most important plant nutrients? Soil is a major source of nutrients needed by plants for growth. The three main nutrients are nitrogen (N), phosphorus (P) and potassium (K). Together they make up the trio known as NPK. Other important nutrients are calcium, magnesium and sulfur. What is the difference between mobile […]
Why we move from top to bottom in a group?
Why we move from top to bottom in a group? Answer. Explanation: when we move from top to bottom in a modern periodic table the atomic size increases because the number of electron and proton and neutron increased. Does atomic radius increase from top to bottom? The atomic radius of atoms generally increases from top […]
How did Piaget and Vygotsky view the path of cognitive development?
How did Piaget and Vygotsky view the path of cognitive development? Vygotsky believed that the child is a social being, and cognitive development is led by social interactions. Piaget, on the other hand, felt that the child was more independent and that development was guided by self-centered, focused activities. What is the correct order of […]
How accurate are IR thermometers?
How accurate are IR thermometers? To make things worse, infrared thermometers have an accuracy of ±3 degrees. That means your recorded temperature could potentially indicate hypothermia or fever, even if your body temperature is actually normal. Why does my infrared thermometer read low temperature? The “Lo” could be caused by measuring room or “air” temperature […]
Can a charged body attract neutral body?
Can a charged body attract neutral body? The answer is YES. Charged particles indeed attract uncharged ones. The negatively charged body can be thought to be an electron rich specie. When brought near the uncharged body, it repels the free electrons from the uncharged body towards its farther end. What happens to weight of the […]
Is mayonnaise a mixture?
Is mayonnaise a mixture? Mayonnaise is an emulsion, which is a mixture of two liquids that normally can’t be combined. Combining oil and water is the classic example. Chemically, emulsions are colloids, heterogeneous mixtures composed of tiny particles suspended in another immiscible (unmixable) material. Is smoke a homogeneous mixture? Smoke is a heterogeneous mixture as […]
Which is more permeable silt or sand?
Which is more permeable silt or sand? For example, a sandy soil will have larger porosity than silty sand, because the silt will fill in the gaps between the sand particles. But it would a lower permeability because the water would have a “harder” time getting through because there would be less space for it […]
Is light or dark wood floors better?
Is light or dark wood floors better? There will be a higher chance of scratches and scrapes, which light hardwood can hide better than dark hardwood. While you’re free to mix and match styles, many homeowners find that darker hardwood flooring lends itself to a more rustic design, while lighter wood is used to create […]