Why heat is a matter?

Why heat is a matter? Matter has mass and occupies volume. Heat, light, and other forms of electromagnetic energy do not have measurable mass and can’t be contained in a volume. Matter can be converted into energy, and vice versa. Why are plant leaves different? Why do tree leaves have different shapes? The shape of […]

What is the first step in photosynthesis?

What is the first step in photosynthesis? The first stage of photosynthesis is called the light reactions. During this stage, light is absorbed and transformed to chemical energy in the bonds of NADPH and ATP. Is it true that only plants can make their own food? Green plants are the only organisms in the world […]

How can pressure and flow rate be controlled?

How can pressure and flow rate be controlled? For every pressure, the pump will only deliver one specific flow rate. Therefore, to control the flow of a centrifugal pump, simply set the output pressure to the point on the P-V diagram that allows the pump to deliver the desired flow rate. The output pressure of […]

What are symptoms of a bad expansion valve?

What are symptoms of a bad expansion valve? Inconsistent air flow – Sometimes a bad expansion valve will provide an inconsistent performance in its ability to regulate the flow of refrigerant throughout the system. If this occurs, the air coming out of the vent may be too cold or too warm. Can you clean an […]

Why is my resting pulse 80?

Why is my resting pulse 80? What does your heart rate tell you? Having a resting heart rate of 80 is not bad because it falls within the normal range. Heart rate or pulse rate is the number of times your heart beats in a minute. It tells you how hard your heart must work […]

Do dodgeball balls hurt?

Do dodgeball balls hurt? The classic dodgeball is like a springy, underinflated basketball. It hurts a little bit if you get a good hit in, about as much as a slap, but it doesn’t do any serious or lasting damage. Is the body part that should be avoided hitting while playing dodgeball? A player may […]

Which one of the following is created by wind?

Which one of the following is created by wind? Answer. Answer: EROSION BY WIND. Wind performs two kinds of erosional work: abrasion and deflation. Where earth materials are deposited when a river enters an ocean? As a river meets the sea, the sediment it carries is deposited in a fan-like formation called a delta. As […]

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