Why do land breezes occur at night? Land breezes usually occur at night because during the day the sun will heat land surfaces, but only to a depth of a few inches. At night, water will retain more of its heat than land surfaces because water has a high heat capacity. How are sea and […]
What kind of charging occurs when you slide your body across a plastic surface?
What kind of charging occurs when you slide your body across a plastic surface? Electrostatics: When a person slides across a plastic surface, the plastic produces a net negative charge and your body surface a net positive charge. What will happen if you switch the battery so that the positive end is on the right […]
Is P and N directly proportional?
Is P and N directly proportional? Boyle’s law states that pressure (P) and volume (V) are inversely proportional. Gay-Lussac’s law states that pressure (P) and temperature (T) are directly proportional. Avagadro’s law states that the amount (n) of a substance is directly proportional to the volume (V). How do you solve for V in PV […]
Where is the waste product of carbon dioxide being created?
Where is the waste product of carbon dioxide being created? During cellular respiration animal cells combine oxygen with food molecules to release energy to live and function. Remember that cellular respiration produces carbon dioxide as a waste product. Animals use energy to grow, reproduce, and to function. They release the carbon dioxide into the air […]
Why does river discharge increase downstream?
Why does river discharge increase downstream? Changes Downstream As one moves along a stream in the downstream direction: Discharge increases, as noted above, because water is added to the stream from tributary streams and groundwater. As discharge increases, the width, depth, and average velocity of the stream increase. Why are river profiles concave? River profiles […]
What are examples of spore bearing plants?
What are examples of spore bearing plants? Algae, mosses, and ferns are some examples of plants that produce spores. Although they belong to different clades, they share the same type of reproduction, which is thought to be quite common in the Kingdom Plantae until some groups evolved into seed-bearing plants as another form of reproduction. […]
What liquid will water float on?
What liquid will water float on? Lighter liquids (like water or vegetable oil) are less dense than heavier liquids (like honey or corn syrup) so they float on top of the heavier liquids. The same amount of two different liquids you used in the container will have different densities because they have different masses. Does […]
How is China doing on climate change?
How is China doing on climate change? China, along with 196 countries, agreed to help reduce rising global temperatures and set a goal temperature of 1.5 degrees celsius above pre-industrial temperatures. China has agreed to its NDC goal of reducing the CO2 intensity of its gross domestic product by 60% by 2030. What countries contribute […]
What is simple harmonic motion write its any four characteristics?
What is simple harmonic motion write its any four characteristics? (i) In SHM, acceleration of the particle is directly proportional to its displacement, and directed towards the mean position. (ii) It can be represented by a single harmonic function of sine or cosine. (iii) Total energy of the particle executing SHM remains conserved. (iv) It […]
Is 100 degrees Celsius hot?
Is 100 degrees Celsius hot? No. We can say that the temperature of boiling water is 100°C(or 100 K) more than the temperature of ice cold water. The highest temperature obtained in the large hadron collider is 5.5 trillion degrees Celsius while the temperature on the surface of sun is 5600°C. However, sun has much […]