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Recent Physics Questions

• Gravity?

  11 min ago - Gravity n. 1. The natural force of attraction exerted by a ce...

• What is the driving force for the hydrologic cycle?

  13 min ago - The driving force for the hydrologic cycle is the sun, which ...

• How can you use the periodic table to find the number of neutrons in an atom?

  13 min ago - The atomic # is the number of protons in an atom of an elemen...

• What is the formula for the period of oscillation?

  14 min ago - The formula for the period of oscillation is T = 2p(m/k)1/2. ...

• What is kinetic energy proportional to?

  14 min ago - The average molecular kinetic energy is proportional to the a...

• What is the equation for potential energy?

  14 min ago - Mass x acceleration from gravity x height. In physics, potent...

• What SI unit is used to measure the number if representative particles in a substance?

  18 min ago - Chemists measure the amount of a substance using a unit calle...

• What tells us that the observed frequency of light emitted by objects moving away from us is lower?

  19 min ago - An observed redshift due to the Doppler effect occurs wheneve...

• Is it physically possible for someone to rip someone else's head off?

  19 min ago - Yes it's possible. People have been killed by having this hap...

• What is the curve on water called?

  20 min ago - That would be called the crest. When the curve resembles a sa...

• Which ball has greater acceleration if a tennis ball and a solid steel ball with the same diameter are dropped the same time. In the absence of air resistance?

  20 min ago - Free Fall is the motion with no acceleration and is provided ...

• Electric magnet?

  20 min ago - An electromagnet is a type of magnet whose magnetic field is ...

• What is the kinetic energy equation?

  20 min ago - The following equation is used to represent the kinetic energ...

• How do you find the velocity?

  22 min ago - Velocity is distance divided by time. So if something travele...

• Which ball has the greater force acting on it if a tennis ball and a solid steel ball the same size are dropped at the same time?

  22 min ago - Gravity as the force acting on the objects is the same for bo...

• What is the equation to find the strength and direction of an electric field?

  23 min ago - The equation is Maxwell's Correction to Ampere's Law. I'm sor...

• What factors is frequency dependent on?

  24 min ago - The electricity system’s frequency is dependent on balance be...

• Is it true a ball will go the farthest if thrown almost horizontally?

  24 min ago - Launching a projectile at 45 degrees results in the farthest ...

• Can you calculate the acceleration if you push with a 20-N horizontal force on a 2-kg block on a horizontal friction-free air table?

  27 min ago - F = ma 20N = 2(a) a = 10 m/s^2 -------------------- F = ma 4N...

• What is the average air speed velocity of an laden swallow?

  27 min ago - The average cruising airspeed velocity of an unladen European...

• What radioactive element was discovered by marie curie?

  29 min ago - Marie and Pierre Curie discovered Polonium and Radium. May th...

• Why are only neutral mutations useful for molecular clocks?

  29 min ago - By measuring of variations in life, they gain insight into th...

• What is a floating abode?

  29 min ago - A floating abode is the same as a houseboat. It is just when ...

• How Do isotonic and isometric differ?

  29 min ago - Isometric projection is a method for visually representing th...

• What is the measure of the average speed of the particles of a substance?

  30 min ago - The average speed for a particle can be found by dividing the...

• Can you calculate the acceleration of a 350000-kg jumbo jet just before takeoff when the thrust on the aircraft is 70000 N?

  30 min ago - Using Newton's law, the acceleration would be the force divid...

• What is the momentum formula?

  30 min ago - The classic formula for momentum is mass times velocity. The ...

• What are accelerations produced by?

  32 min ago - The acceleration of an object is dependent upon two variables...

• What is the most precise way to increase the amount of white space between two paragraphs?

  32 min ago - To increase white space between paragraphs, the CSS white spa...

• What is Newton's second law of motion?

  32 min ago - Newton's second law states that F=ma (Force=mass x accelerati...

• Can you Calculate the acceleration of a 2,000-kg single-engine airplane just before takeoff when the thrust of its engine is 500N?

  34 min ago - Thrust = Mass x Acceleration, therefore, 2000kg = 19600n, so ...

• What is a charged particle called?

  34 min ago - A charged particle is called a proton. Thanks, ChaCha.

• What is the rate at which velocity changes called?

  34 min ago - Acceleration and deceleration describe generally how velocity...

• Is this true or false: Momentum is not conservative when interacting objects don't move along a straight line?

  35 min ago - Conservation of angular momentum is a powerful general law th...

• What is the difference between fusion and fission?

  36 min ago - Fission is the act or process of splitting into parts. Fusion...

• What is the Hund's Rule?

  37 min ago - Hund's rule: every orbital in a subshell is singly occupied w...

• Why does fire burn up and not down?

  37 min ago - The density of the hot gas is less than the density of the su...

• What is van der waals forces?

  37 min ago - The van der Waals force is the sum of attractive or repulsive...

• What is a poor electrical conductor?

  38 min ago - Glass is a very poor conductor of electricity. Thanks for usi...

• If a temperature remains constant, what will happen to the pressure of a gas if you decrease the volume of the container that holds it?

  38 min ago - Boyle's law leads us to find that the pressure of the gas wil...

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