Jorge Bayard
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About
My academic background consists of a bachelor's degree in physics with postgraduate studies in physics and physics teaching. As a teacher, I am able to work with students at different levels. I have researched the methodology of solving problems in physics and mathematics.
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Recent Activity

Answered a Question in Science
The potential difference between two points in an electric field is equal to the work done to move a unit electric charge between these points. When an electric charge is released into a potential... 
Answered a Question in Science
Consider the Y axis in the vertical direction and the X axis in the horizontal direction. In the vertical direction, the ball moves with a uniformly varied movement, and in the horizontal direction... 
Answered a Question in Science
The acceleration is a characteristic of the variable motions; that is, where the speed is not constant. The acceleration of a movement is the rate with which the speed varies, per unit of time.... 
Answered a Question in Math
A right cone, is a solid of revolution generated by the rotation of a right triangle, around one leg. The circle described by the other leg is called the base of the cone and the upper... 
Answered a Question in Science
Suppose the mirror on the right is the mirror #1 and on the left is #2. If we are at a point in the bisecting line between the mirrors, we have: First case: 30 degrees The light incide on the... 
Answered a Question in Science
Between these two devices are several differences. There are differences between the roles they develop, the type of electric current used to generate power, and the operating principle. The... 
Answered a Question in Science
In outer space the birds can not fly because there is no atmosphere. The flight of a bird is possible thanks to the "force of lift," A lift force is only achieved when an object, with a specific... 
Answered a Question in Science
First, let's use the speed equation for any time of the vertical movement: v = v0 ± gt Where: v; is the speed for each moment. v0; is the initial velocity of the rock. g = 9.8... 
Answered a Question in Science
First we will calculate the speed of movement of the escalator. Since the length is 10 m, and the travel time is 65 s, the speed of a step is: v = d/t = 10/65 = 0.15 m/s If the person walks up or... 
Answered a Question in Science
The pendulum is a physical system which can oscillate under the action of gravity or other physical action such as an elastic force. In its simplest form, it consists of a body of mass m, suspended... 
Answered a Question in Science
Studies of electricity and magnetism began in ancient times independently with the contribution of many scientists. Electricity is the branch that studies the processes related to the electric... 
Answered a Question in Science
Two of the units of measure most commonly used in maritime transport are "the nautical mile", to measure distance and the "knot", to measure speed. These units are also used in air navigation. A... 
Answered a Question in Science
Wettability is the ability of a liquid to spread out and leave a trace on a solid. This characteristic of liquids is related to the molecular interactions between the liquid molecules and the... 
Answered a Question in Science
The kinetic energy of a body is the energy that it has due to its movement and is defined as the work needed to accelerate a body of mass m from rest to a speed v. The expression to calculate the... 
Answered a Question in Science
This is a motion in two dimensions, which can be decomposed into two movements, which are the following: . A uniform rectilinear motion in the horizontal direction(x), having a constant speed. . A... 
Answered a Question in Science
In electrical installations, the resistors can be connected in two ways, which are in series and in parallel. Each form has its own characteristics in terms of the voltage V, the current I and... 
Answered a Question in Science
Although it is common to use both concepts interchangeably, there are actually differences between them. The two concepts describe a curvilinear movement where the body returns to its starting... 
Answered a Question in Math
A mixed number consists of an integer part and a fraction. In fact the mixed number can be seen as the sum of the integer part plus the fractional part. For example, the mixed number 3 (1/5), can... 
Answered a Question in Math
The diameter is an important parameter of a circumference. Geometrically, the diameter is defined as a secant line to the circumference that passes through its center. Another important parameter... 
Answered a Question in Science
If we refer to the gravitational action on the human body, actually, being in the water it is like being in space. In space, the gravitational action of the earth on our body is very small, due to... 
Answered a Question in Science
The basic function of a resistor is the dissipation of electromagnetic energy. In an electric circuit, the electric current consist in, to set in motion the charged particles of a conductor; from... 
Answered a Question in Science
If the car travels equal distances in equal intervals of time, in a straight line, we have that it performs a uniform rectilinear motion (MRU). For this type of movement, the speed does not vary in... 
Answered a Question in Math
a) To calculate the height in a vertical motion, we apply the following formula: h = (v^2 – v0^2)/2g (1) where: v → is the velocity at any instant of... 
Answered a Question in Science
The difference between a heavy body and light body is its mass; a heavy object has more mass than a light one. According to the second law of motion (Newton's second law), the variation experienced... 
Answered a Question in Science
The name of this device is "burette". These instruments are containers with tubular and elongated shape with a uniform internal diameter. Depending on the volume of the instrument they may be... 
Answered a Question in Science
The portion A is which represents the phase in which water molecules have the least amount of kinetic energy. The molecules of a body are constantly moving at different speeds; this movement is... 
Answered a Question in Science
First, we must find the initial velocity that the ball must have on earth, to reach the height of 2 m. The height is calculated using the following equation: H(earth) = (v^2 – v0^2)/2g (earth)... 
Answered a Question in Science
The speed of the vertical motion is calculated by the following expression: v = vi ± gt v → is the velocity at any instant of movement. vi → is... 
Answered a Question in Science
The density of a body is defined as the ratio of the mass m, and the volume V occupied by the body. ρ = m/V ρ → Density m → mass of the body.... 
Answered a Question in Science
The relative density (ρr) is the relationship between the density of a substance (ρs), with another density which is taken as reference. For liquids and solids, it is taken as reference the density... 
Answered a Question in Science
In this case, we consider that the impulse of the force (FΔt), is equal to the variation in the amount of body movement (mΔv). F(t –t0) = m(v – v0) ... 
Answered a Question in Science
The waves produced in the water have the same frequency of the sound produced by the speaker. The strobe emits light with a frequency that can be regulated by the user. Since the room is dark, you... 
Answered a Question in Reference
The right way to translate the phrase “Ay Dios mio”, is “Oh my God” because in Spanish, the singular form of the word “God” is "Dios". In the case of the phrase "Oh My Gods", the actual translation... 
Answered a Question in Science
When two quantities of water are mixed at different temperatures, a heat transfer occurs during the process. In this case the mass of colder water, absorbs a quantity of heat equal to that released... 
Answered a Question in Science
If the mixture has only sand and small pieces of iron, must spread the mixture on a flat surface, so that a layer is obtained as small as possible. Then, you are spending on a permanent magnet over... 
Answered a Question in Science
To study the dependence of the magnetic force with the angle between the current and the magnetic field direction, it is necessary to have, a uniform magnetic field, i.e. a field with induction... 
Answered a Question in Science
The answer is (D), the oscilloscope. An oscilloscope is an electronic instrument, which is used for graphical representation of electrical signals that vary over time. In an oscilloscope, the... 
Answered a Question in Math
Should be considered, the following equation: (1/2)x + (1/3)x = 35 Where the variable x represents our incognita. Isolating x we have: 1/3 + 1/2 = 5/6 (5/6)x = 35 x = (6)(35)/5 x = 42 km 
Answered a Question in Math
The unit vector of a given vector is defined as the ratio between the vector and its absolute value. r̂ = r̄/r̄ where: r̂ → Unit vector in the direction of r̄ r̄ →... 
Answered a Question in Math
You can do this by establishing equality of reasons. In this case we have that, two inches account for 25 miles; and the question is; How many inches, represent 60 miles? This can be stated as... 
Answered a Question in Science
The motion of the car has a constant acceleration. In this case we will use the expression of the acceleration and the expression of distance for the uniformly varied movement. The acceleration is... 
Answered a Question in Science
There are two types of nuclear reactions, in which large amounts of energy are released. These reactions are nuclear fission and nuclear fusion. Nuclear fusion, which is what happens in the sun, is... 
Answered a Question in Science
Electrons can move by the action of the electric force, or the magnetic force. In the case of the electric field, it is established, by covenio, that regions around the positive charges are... 
Answered a Question in Science
The distance traveled by each brother in a time t, is equal to its speed by time: d = vt So we can say that: The oldest brother travels, in time t, a distance d1 = v1 t The younger brother travels,... 
Answered a Question in Math
Consider that: 1. The triangle has three sides equal, so that each inner angle is 60° 2. The altitude, forms a right angle to the opposite side, so that there are two new right triangles whose... 
Answered a Question in Science
When a charged particle q enters with a speed v, in a uniform magnetic field B, experiences a magnetic force given by: Fm = q (v x B) Assuming that the velocity is perpendicular to the field; the... 
Answered a Question in Math
First, the maximum power of the variable must be 2. The first analysis is done for the coefficient of the term in x^2 and the independent term; the square root of these numbers must be accurate.... 
Answered a Question in Math
We know that two lines are perpendicular if their slopes are mutually reciprocal. Two lines with slopes m1 and m2 are perpendicular if they meet the following: m1 = 1/m2 With this in mind and,... 
Answered a Question in Math
To convert tons to pounds, first we convert tons in kilograms knowing that: 1 ton(metric) = 1000 kg then: 2 tons(metric) = 2 x 1000 kg = 2000 kg Now we convert kilograms into pounds, knowing that:... 
Answered a Question in Math
It seems that aims to determine the general rule or general term of this succession. There is no calculation method for this operation; the procedure involves the observation of the behavior of its...
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