Why does a piece of tile or stone feel colder than a piece of wood even though both are at same temperature? Answer. Answer: Stone conducts heat at least 10 times better than wood – so it sucks the heat away from your hand. In tile, which is a thermal conductor, the flow causes the […]
Which metal is used in clinical thermometer?
Which metal is used in clinical thermometer? Mercury is the only one in liquid state at room temperature. It’s used in thermometers because it has high coefficient of expansion. Hence, the slightest change in temperature is notable when it’s used in a thermometer. What are five sites for measuring body temperature? The most common ones […]
Does rubber shrink when heated?
Does rubber shrink when heated? Polymers like rubber shrink on heating as their molecular chains curl up, and water shrinks when warmed from its freezing point to around 4°C. After that, though, it behaves normally, and expands on warming. In contrast, so-called negative thermal expansion (NTE) materials never behave themselves. Why does rubber shrink when […]
How many types of indicators are there?
How many types of indicators are there? Types of Indicators Artificial and Natural indicators are the two types of Chemical indicators. Litmus, red cabbage, turmeric, china rose are a number of the present indicators around us. What is another type of indicator? An indicator prepared from natural substances is known as natural indicator. Examples are […]
Is Zoom safe to use?
Is Zoom safe to use? Zoom is still safe to use in most cases. HOW MUCH IS zoom monthly? Zoom Pricing Name Price Basic Free Pro $14.99per host per month Business $19.99per host per month Enterprise $19.99per host per month Which is better Google meet or zoom? Two of the best services out there are […]
Where is the tropical zone?
Where is the tropical zone? The tropics are regions of the Earth that lie roughly in the middle of the globe. The tropics between the latitude lines of the Tropic of Cancer and the Tropic of Capricorn. The tropics include the Equator and parts of North America, South America, Africa, Asia, and Australia. Which zones […]
How is energy conserved in an electric motor Class 10?
How is energy conserved in an electric motor Class 10? The faster the wire is moving, the greater this “back EMF” becomes. When the back EMF equals the source voltage, the current through the wire goes to zero (in the ideal case) and the motor can revolve no faster. What is the working principle of […]
How fast does ultrasound travel through air?
How fast does ultrasound travel through air? It is important in image resolution. Figure 7. Sound waves must have a medium to pass through. The speed at which a sound wave travels through a medium is called the propagation speed or velocity….C. The Basic Process in Greater Depth. Material Velocity (m/s) air 331 fat 1450 […]
What is an example of a phasic receptor?
What is an example of a phasic receptor? Examples of such tonic receptors are pain receptors, joint capsule, and muscle spindle. A phasic receptor is a sensory receptor that adapts rapidly to a stimulus. An example of a phasic receptor is the Pacinian corpuscle. What is a rapidly adapting receptor? Rapidly adapting receptors (RARs) occur […]
What are two examples of sustainable resources?
What are two examples of sustainable resources? Examples of Sustainable Development Wind Energy. Solar Energy. Crop Rotation. Water efficient fixtures. Green Spaces. How a city can be sustainable? This means the main ways cities can become greener are to: Reduce the amount of energy and resources used through improving the efficiency of systems, for example […]