What type of electromagnetic waves is used in radar? Radar uses radio waves which are electromagnetic waves and travel at a speed of 300,000,000 m/s. What are the 2 types of radar? Radars can be classified into the following two types based on the type of signal with which Radar can be operated. Pulse Radar. […]
How does distance from the ocean affect climate?
How does distance from the ocean affect climate? Distance from the sea – Oceans heat up and cool down much more slowly than land. This means that coastal locations tend to be cooler in summer and warmer in winter than places inland at the same latitude and altitude. Why are coastal areas more stable climates? […]
What is the most acidic fruit?
What is the most acidic fruit? Here are the 13 most acidic fruits and their pH value as observed by the Clemson University: Lemon Juice (2.00 – 2.60) Limes (2.00 – 2.80) Blue Plums (2.80 – 3.40) Grapes (2.90 – 3.82) Pomegranates (2.93 – 3.20) Grapefruits (3.00 – 3.75) Blueberries (3.11 – 3.33) Pineapples (3.20 […]
What are the three levels of the federal court system?
What are the three levels of the federal court system? The federal court system has three main levels: district courts (the trial court), circuit courts which are the first level of appeal, and the Supreme Court of the United States, the final level of appeal in the federal system. What are two examples of cases […]
Why is hydrogen so special?
Why is hydrogen so special? Hydrogen is a colorless gas that is so much lighter than air that it can actually escape the gravitational pull of the earth and shoot off into space. Hydrogen is also the first element on the periodic table and has only on proton and one electron. Hydrogen does not have […]
What are the energy conversion devices?
What are the energy conversion devices? Devices Dynamo. Mechanical energy into electrical energy. Electric motor. Electrical energy into mechanical energy. Microphone. Sound energy into electrical energy. Loud speaker. Electrical energy into sound energy. Electric Bulb. Electrical energy into light and heat energy. Solar cell. Candle. Sitar. Which of the following is an example of a […]
Does voltage stay the same in series?
Does voltage stay the same in series? 2. In a series circuit the current is the same at any particular point on the circuit. 3. The voltage in a series circuit, however, does not remain constant. Why does voltage decrease in a series circuit? In series circuits, the resistor with the greatest resistance has the […]
What is the fifth state of matter?
What is the fifth state of matter? There are four states of matter common in everyday life — gases, liquids, solids, and plasmas. However, there is also a fifth state of matter — Bose-Einstein condensates (BECs), which scientists first created in the lab 25 years ago. Is plasma The Fifth Element? Science is also getting […]
Why can hydrogen only have two valence electrons?
Why can hydrogen only have two valence electrons? Because hydrogen only has one electron surrounding its nucleus, its valence shell is the first energy shell, which only needs two electrons to be full. Hydrogen tends to form covalent bonds because a single covalent bond will fill its shell. How many valence electrons are present in […]