Physics

Some of the kinetic energy of a body in motion is used up in overcoming friction, which acts in the direction opposite to that of...

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v=2.3x10^13 s-1

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The positively charged particles in an atom's nucleus are called protons.

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You place a specimen of a specific dimension into tensile testing machine (such as made by Instron) and pull on it and measure...

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How and/or why would that happen? It is neutral. Not positive or negative. They will attract their opposites. Not a neutral item....

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No, alpha particles are helium nuclei, hence, they have a charge of +2 (elementary charges).

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Yes. Nd converging lens = concave lens

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gravity

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Kinetic energy refers to energy a mass has due to its motion. It is the amount of energy required to accelerate the mass from...

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Both?

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crusonator c.tassoulas

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The small amount of friction of the wheel molecules rubbing against the surface molecules is called "rolling friction". Also, the...

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The equation is H2CO3 --> H2O + CO2

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By newton s second law, F=ma; now suppose that net force acting on the body is zero , so that F=0; so, 0=ma; so either m=0 or...

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No, but a Ion cannon is.

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Usually through cables. The power produced by the generator (typically 24KV) is stepped up to the transmission voltage (typically...

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it doesn't

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Cracking does not work, it is the result of work which produces a force causing an object to crack. Like the earths mantle...

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Photon's carry electric radiation energy in 'empty space'. Photon's carry the sun's energy to earth. Photon's are related to...

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Not to my knowledge, they only vibrate if they are heated

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The result of unbalanced forces is a net force that can accelerate a body.

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Reflection is when a wave of light bounces away from the material, depending on the material it may maintain its strength....

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20 hours

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The air in your lungs expands in volume as you get closer to the surface of any water you swim in. This is because the air was...

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To convert from Kelvin to Celsius, just subtract 273.14.

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The sorption of a contaminant is one of the significant processes that can hinder the remediation of a ground water aquifer...

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Net Force

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There should be a note somewhere on the oven stating the frequency of the waves produced. It's normally around 2.5gigahertz. You...

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no

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Alexander Volta.

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Salt will only change volume to fill its container if it is a gas. Sodium chloride will do this at temperatures above its boiling...

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Objects use more energy when increasing in speed or starting while objects use less energy while going at a steady pace.

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Only one example that I have come across. That one is sound wave.

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Yes, friction can be the force that is preventing relative motion between two surfaces; this is called traction. That is why you...

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A tire has grip on it and so does a road so they can grip onto each other and the car can move. If there was no friction, then...

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2 x pi.

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Gravity is believed to travel at the speed of light. This follows from theory, especially the Special and the General Theory of...

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Hearing depends on sound waves which vibrate the ear drum and are translated into impulses which are fed to the brain.

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Temperature has not affect on the speed of sound.

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Net force is determined by adding all of the forces acting on an object, using a negative sign for forces opposing motion (like...

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How far the drop height is.

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it slows down their speed

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H = m s tH - heat energy in joulem- mass of the body in kgs - specific heat capacity J / kg / Kt - the temperature difference may...

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Bound together in newtons famous (and most powerful) equation:>force = mass * acceleration>Triangle refers to the fact that...

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Because when air goes bye bye, temperature gets bored and goes home.

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This question does not make sense

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Guy-lussac's law

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I think it is Buoyancy. Buoyant floats, neutral buoyancy neither floats nor sinks it is the same SG as the liquid in which it...

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Weight is the force acting downwards towards the earth. The mass of the object with always remain constant while the weight...

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Because it is a metal. That means it has lots of electrons that can move around fairly freely; these conduct most of the heat and...

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Electrical energy is usually transmitted over cables. It is usually transmitted at high voltages, to reduce the current, and thus...

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Because a ray that passes through the center of curvature falls perpendicular to the surface (along a normal to the surface),...

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Because Earth and other planets in our system are moving just like electrons move in their orbits.Electrons are negatively...

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According to the density tables, vehicular gasoline has a density of 737.22 kilograms per cubic meter. One cubic meter is...

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100 calories

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Ultrasonic signals (or even sonic ones - ones we can hear) are generated by a device called a transducer. The transducer has a...

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A baseball has a radius of 3.6 cm and a mass of 145 g. The cork and rubber center is the size of a quarter. Cork from...

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It turns out that the bandgap of "bulk silver(I) oxide" is zero. There is no band gap. What this means is that silver(I) oxide,...

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Metals that possess d-valence electrons exhibit magnetic properties and can be easily magnetised. Iron, nickel, and cobalt are...

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1. It depends on the conditions of course, but if dry ice is kept in a closed container it will sublimate (change from solid to...

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Yes, it can happen. when the velocity is momentarily zero while an object is changing from moving in the positive direction...

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Tantalum is refined by chemical processing. Current methods provide for the floridation of the metal and the recovery of its pure...

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AnswerEveryday things that expose us to radiation are: 1. The microwave 2. Anything electrical a. Above graound power lines ...

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The water has two ways to go after being in a puddle. One way is that it can drain down into the ground through the dirt....

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no design matters. it is the force of water resistance and upthrust that are level that allows any boat to float

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Light exhibits the qualities of both a particle and a wave. Wave-particle duality is a fundamental concept of quantum mechanics,...

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Well there's many possible ways to calculate your height like for example using a measuring stick or going to the doctors which...

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One would think that if a hole is drilled, eventually we will reach the other side of the earth. But actually doesnot happen. The...

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Radiation is the main transfer made. Conduction across an air space is poor. While convection will take heat up the chimney ,...

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Wren

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The Period

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I am not sure if you would want to decrease the friction on your hands, because in the case of using a screwdriver, for example,...

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Kenetic Energy Is A Form Of Motion and movement. ---- Or so others can uderstand, Kenetic energy is energy "in use" or energy...

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Ice is less dense than water so it floats on water. This is useful because it insulates the remainder of the water but also means...

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This could be due to the fact that a sodium vapour lamp contains neon gas and when a current is passed through the two electrodes...

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A cubic centimeter of silicone weighs 2.3 grams.

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One millirem is 1 x 10-3 rem, which can also be written as 1E-3 rem. Note that 1 x 10-3 is not the same as 1.0 x 10-3 which is...

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A force is anything that changes an object's state of motion or rest, a push or pull of an object. While a net force makes...

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Water simply adds another element of refraction to a diamond. The stone's sparkle is based on the excellence of its cut and the...

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The motors inside an air conditioning module have to rotate and create gust, or wind, which is part of pascal's principle.

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Metals in general were not discovered by scientists. No-one knows who discovered the first piece of metal. It may have been part...

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Archimedes Principle states that the buoyant force on an object is equal to the weight of the fluid displaced by that object.

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It can. If the core isn't large enough for the number of windings and the amount of current flowing through those windings, the...

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elasticity

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If an object floats in water, we can immediately conclude that it is less dense than the water. So, we've already gained a bit of...

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Work = force x distance. If distance = 0, work = 0 because force x 0 = 0.

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-1.6*10-19 Coulombs

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An interference pattern will not be generated by two close stars because 1) they are not point sources and 2) the light they emit...

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A compound is a substance made of two or more elements chemically combined in a specific ratio. For example water (H2O) . This...

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Mechanics - motion and its causes ex. falling objects, friction, weigh, spinning, rocket motion Electromagnetism - electricity,...

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Basically, each molecule has well defined energy levels (vibrational, rotational, ecc.) which are related to the molecule...

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Water is denser than air so it is a better conductor of sound. It is so good at allowing sound to travel further that scientists...

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Plasma is a state of matter that does not have a definite shape or volume; its properties is different from gases in which plasma...

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Basically, the rate at which the water will cool depends on the difference between the water's temperature, and the temperature...

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number of particles passing through a cross sectional area in a given time interval.I am working on laser machining. Which area...

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i would say yes, if the temperature of the beverage is different from the temp. of the environment it is in.by shaking or...

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A banked turn is the term used to describe a car riding along a circle with inclined edges. The angle at which a turn is banked...

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The average speed is 38.75 m per minute. You first have to get the rate of speed per minute in each equation. Then add the...

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