Category: Physics

Is the flat side of a battery negative? The polarity of batteries is what helps them supply current to a device. The plus sign, or +, indicates the positive terminal. The negative end of the battery should be flat, and it may or may not be marked with a minus, or -, symbol. What is […]

Can a peregrine falcon kill a human? A peregrine has between 4 to 8 times as much mass as a baseball, and can move at twice the speed of a fastball. That’s between 16 and 32 times the kinetic energy of a baseball. It is difficult to estimate the time of the collision accurately, but […]

What will be the resistance of 100w 210v lump? Resistance of the bulb: 625 Ω is the resistance of a bulb rated 100w ,250v. What is the resistance of the bulb marked as 20w 220v? Answer. putting values we get R= 242 ohm. What is the resistance of a bulb at 500w 220V? R=(220V)2100W=484Ω. What […]

What are 4 factors that affect weather? Although many factors combine to influence weather, the four main ones are solar radiation, the amount of which changes with Earth’s tilt, orbital distance from the sun and latitude, temperature, air pressure and the abundance of water. What region of Earth has the least insolation? The sun’s rays […]

What is causality theory? Causality is a genetic connection of phenomena through which one thing (the cause) under certain conditions gives rise to, causes something else (the effect). The essence of causality is the generation and determination of one phenomenon by another. A cause is an active and primary thing in relation to the effect. […]

What does molar heat capacity depend on? Like the heat capacity of an object, the molar heat capacity of a substance may vary, sometimes substantially, depending on the starting temperature T of the sample and the pressure P applied to it. What is the unit of molar heat capacity? The molar heat capacity is the […]

What is the greatest degree of precision? pipette How precise is a cm ruler? We can say that the measuring instrument is readable to ±0.05 cm. The ±0.05 cm means that your measurement may be off by as much as 0.05 cm above or below its true value. This value is called the uncertainty or […]

What measurement represents volume? Volume is the measure of the amount of space occupied by an object. The standard SI unit of volume is defined by the base unit of length (Figure 3). The standard volume is a cubic meter (m3), a cube with an edge length of exactly one meter. Which choice best describes […]

Who proposed punctuated equilibrium? Stephen Jay Gould What is punctuated equilibrium quizlet? Punctuated equilibrium. A theory that states species stay the same for a long time, then new species evolve suddenly due to global changes and mass extinction. Coordinated stasis. A pattern where most species appear at about the same time. Mass extinction. What is […]

How do you calculate heat of combustion? The heat of combustion is calculated by multiplying the mass of the water times the specific heat of the water times the change in temperature. This entire equation is multiplied by -1, because heat of combustion is negative because heat is being lost or released. What is combustion […]