Category: Physics

What are circuits in physics? A circuit is a closed loop that electrons can travel in. A source of electricity, such as a battery, provides electrical energy in the circuit. The appliance may, for example, provide light or heat or mechanical energy. What is short circuit in physics? A short circuit (sometimes abbreviated to short […]

Does it take energy to freeze water? It takes 100 calories to heat 1 g. water from 0˚, the freezing point of water, to 100˚ C, the boiling point. However, 540 calories of energy are required to convert that 1 g of water at 100˚ C to 1 g of water vapor at 100˚ C. […]

How many half-lives until a drug is out of your system? Even further, 94 to 97% of a drug will have been eliminated after 4 to 5 half-lives. Thus, it follows that after 4 to 5 half-lives, the plasma concentrations of a given drug will be below a clinically relevant concentration and thus will be […]

Which continent is located at 40 North and 20 East? The 40th parallel north is a circle of latitude that is 40 degrees north of the Earth’s equatorial plane. It crosses Europe, the Mediterranean Sea, Asia, the Pacific Ocean, North America, and the Atlantic Ocean. What city is 41 degrees north and 74 degrees west? […]

What is a diatomic molecule example? Diatomic molecules are composed of only two atoms, of either the same or different chemical elements. Common diatomic molecules include hydrogen (H2), nitrogen (N2), oxygen (O2), and carbon monoxide (CO). The bond in a homonuclear diatomic molecule is non-polar due to the electronegativity difference of zero. Why are some […]

How can a wheel and axle help us? In addition to reducing friction, a wheel and axle can also serve as a force multiplier, according to Science Quest from Wiley. If a wheel is attached to an axle, and a force is used to turn the wheel, the rotational force, or torque, on the axle […]

What food has a high pH level? Fruits and fruit juices high in acid lemon juice (pH: 2.00–2.60) limes (pH: 2.00–2.80) blue plums (pH: 2.80–3.40) grapes (pH: 2.90–3.82) pomegranates (pH: 2.93–3.20) grapefruits (pH: 3.00–3.75) blueberries (pH: 3.12–3.33) pineapples (pH: 3.20–4.00) What should I eat if I have too much stomach acid? Here are five foods […]

What does d2y dx2 mean? second derivative How can you tell dy dx? Derivatives as dy/dx Add Δx. When x increases by Δx, then y increases by Δy : y + Δy = f(x + Δx) Subtract the Two Formulas. From: y + Δy = f(x + Δx) Subtract: y = f(x) To Get: y […]

What is the easiest kite to fly? Parafoil Kites What is the best shape for a kite to fly? Box kites can be rectangular, hexagonal, tetrahedral or other shapes with frames that provide three-dimensional cells. These shape combinations give good lift and stability. What is the best kite in the world? Best Overall: Prism Synapse […]

How does pH affect free energy of ATP hydrolysis? Due to the acid-base properties of ATP, ADP, and inorganic phosphate, the hydrolysis of ATP has the effect of lowering the pH of the reaction medium. How does the hydrolysis of ATP perform work? The energy released from ATP hydrolysis into ADP + Pi performs cellular […]