How accurate is a DEXA scan for bone density? Depending on the study you read, the variability between DXA scans can be as high as 5% to 6%. Although 5% to 6% might sound like a small amount, changes in bone growth are measured down to the hundredth and even thousandth decimal point. Can a […]
How does the work is done in an object?
What happens to a rock when heat and pressure were added?
What happens to a rock when heat and pressure were added? Metamorphic rocks form when heat and pressure transform an existing rock into a new rock. Contact metamorphism occurs when hot magma transforms rock that it contacts. Regional metamorphism transforms large areas of existing rocks under the tremendous heat and pressure created by tectonic forces. […]
What are the six principles of the life span developmental approach?
What are the six principles of the life span developmental approach? Baltes’ lifespan perspective emphasizes that development is lifelong, multidimensional, multidirectional, plastic, contextual, and multidisciplinary. Think of ways your own development fits in with each of these concepts as you read about the terms in more detail. What are the 8 stages of Erikson’s theory? […]
What are the six major types of investigation?
What are the six major types of investigation? A six-step, structured approach to incident investigation (Fig 1) helps to ensure that all the causes are uncovered and addressed by appropriate actions. Step 1 – Immediate action. Step 2 – Plan the investigation. Step 3 – Data collection. Step 4 – Data analysis. Step 5 – […]
What is the farthest swim ever?
What is the farthest swim ever? The longest distance ever swum without flippers in open sea is 225 km (139.8 miles) by Veljko Rogošić (Croatia) across the Adriatic Sea from Grado to Riccione (both Italy) from 29-31 August 2006. The attempt took him 50 hours 10 mins. The distance swum is by GPS. Has anyone […]
When the sun warms the sidewalk on a hot sunny day what type of energy conversion occurs?
What percentage of TDEE is neat?
What percentage of TDEE is neat? The remaining 30% of TDEE is physical activity, which then gets broken down into exercise activity thermogenesis (EAT) and nonexercise activity thermogenesis (NEAT). EAT accounts for about 5% of TDEE, while NEAT can contribute as much as 15%. What are the three methods of expending energy? Abstract. Daily energy […]
Is the cell membrane fully permeable?
Is the cell membrane fully permeable? The cell wall is fully permeable to smaller molecules with the size of 30-60 kDa. The membrane is selectively permeable and controls the movement of the substance into and outside the cell. Functions include protection from the external environment. Do animal cells have a selectively permeable membrane? Cell Membranes. […]
What is the formula of ammonium nitrate?
What is the formula of ammonium nitrate? NH4NO3 What happens when you mix water and ammonium nitrate? If you gently heat ammonium nitrate that has dissolved in water, the solution breaks down to release nitrous oxide, commonly called laughing gas. Because solid ammonium nitrate can undergo explosive decomposition when heated in a confined space, its […]