1. What is the PE of a 2 kg block 5 m above the floor?

A 0.41 kg spike is hammered into a railroad tie with 1.4 m/s initial speed. They absorb 40.4% of its initial kinetic energy as internal energy, resulting in an increase of 0.164 J in their internal energy.

To solve this problem, we need to use the conservation of energy principle, which states that the total energy in a closed system remains constant. In this case, the initial kinetic energy of the spike is converted into internal energy of the spike and tie.

The initial kinetic energy of the spike is given by:

\(KEi = (1/2) \times m \times v^2\)

\(KEi = (1/2) \times 0.41 kg \times (1.4 m/s)^2\)

KEi = 0.4054 J

The internal energy gained by the spike and tie is given by:

\(\Delta E = KEi \times 40.4\%\)

\(\Delta E = 0.4054 J \times 0.404\)

ΔE = 0.164 J

Therefore, the increase in internal energy of the spike and tie is 0.164 J.

In summary, a 0.41 kg spike is hammered into a railroad tie with an initial speed of 1.4 m/s. The tie and spike absorb 40.4% of the spike's initial kinetic energy as internal energy. Using the conservation of energy principle, we calculate that the increase in internal energy of the tie and spike is 0.164 J.

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The formula of the trigonometric function that models the distance HHH from the pendulum's bob to the wall after t seconds is

H(t) = 15 -6sin(2.5π(t -0.5))

Detailed explanation:

The function can be expressed as the following for the midline M, amplitude A, period T, and time t0 at which the function deviates from the midline:

 H(t) = M -Asin(2π/T(t -t0))

The equation is based on the parameters M=15, A=6, T=0.8, and t0 = 0.5.

H(t) is equal to 15 -6sin(2.5π(t -0.5))

The trigonometric functions in mathematics are real functions that connect the right-angled triangle's angle to the ratios of its two side lengths .In all areas of study that involve geometry, such as geodesy, solid mechanics, celestial mechanics, and many others, they are widely used.

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The correct question is:

A pendulum is swinging next to a wall. The distance from the bob of the swinging pendulum to the wall varies in a periodic way that can be modeled by a trigonometric function.

The function has period 0.80.80, point, 8 seconds, amplitude 6 \text{ cm}6 cm6, start text, space, c, m, end text, and midline H = 15 \text{ cm}H=15 cmH, equals, 15, start text, space, c, m, end text. At time t = 0.5t=0.5t, equals, 0, point, 5 seconds, the bob is at its midline, moving towards the wall.

Find the formula of the trigonometric function that models the distance HHH from the pendulum's bob to the wall after t seconds. Define the function using radians.

Answer:

gravity

Explanation:

Answer:

Kinetic energy at maximum height is zero.

Explanation:

At maximum height, the velocity is zero. Thus, the kinetic energy is also zero. This can further be seen as illustrated below:

Let the mass of the object be = m

Velocity (v) at maximum height = 0 m/s

Kinetic energy (KE) at maximum height =?

KE = ½mv²

KE = ½ × m × 0²

KE = ½ × m × 0

KE = 0

From the illustration above, we can see that the kinetic energy at maximum height is zero.

Answer:

d= 45 m

Explanation:

speed = distance / time

15= d/ 3

d= 45 m

The heat transfer rate by convection is given by the following equation: qcon v = h × A × (Tb - Ta)The heat transfer rate by radiation is given by the following equation: qra d = σ × A × [(Tb + 273)4 - (Ts + 273)4] × εEquating the above equations, we get,

The steady convective heat flux from the base plate to air is given by the following equation: qcon v = h × A × (Tb - T where, qcon v = steady convective heat flux from the base plate to air h = convective heat transfer coefficient A = area of the base plate.

Tb = temperature of the base plate Ta = temperature of the air. The heat transfer rate by convection is given by the following equation: qcon v = h × A × (Tb - T Use the definition of net radiative heat transfer and heat transfer rate equation for thermal radiation together with emissivity of steel ca0.5 to calculate the steady radiative heat flux from the base plate to the surrounding.

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Answer:

397 j

Explanation:

Because 5.0kg yuh

The kinetic energy of the block with a mass of 5.0 kg is pushed on a frictionless surface by applying a horizontal force of 80.0 N. The block starts from rest, and its final velocity is 12.6 m/s is 396.9 J.

A moving item or particle has a certain kind of power called kinetic energy. When an item exerts a net force to perform work, which involves the transfer of energy, the object accelerates and as a result, gains kinetic energy.

The amount of kinetic energy that a moving object or particle possesses is determined by both its mass and rate of motion. Any combination of vibration, axis rotation, translation (or movement along a path from one location to another), and translation are all possible motion types.

Given:

The mass of the block, m = 5 kg,

The horizontal force, F = 80 N,

The velocity of the block, v = 12.6 m / s,

Calculate the kinetic energy by the formula given below,

\(KE = 1/2mv^2\)

KE = 1 / 2 × 5 × 12.6²

KE =  1 / 2 × 5 × 158.6

KE = 396.9 J

Therefore, the kinetic energy of the block with a mass of 5.0 kg is pushed on a frictionless surface by applying a horizontal force of 80.0 N. The block starts from rest, and its final velocity is 12.6 m/s is 396.9 J.

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The complete question is A block with a mass of 5.0 kg is pushed on a frictionless surface by applying a horizontal force of 80.0 N. The block starts from rest, and its final velocity is 12.6 m/s. ​Find its kinetic energy?

The amplitude and wavelength are measured in meters while frequency is measured in decibels.

Therefore, the amplitude and wavelength are measured in meters while frequency is measured in decibels.

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Answer:

meter
hertz
meters
meters/seconds
decibals

Explanation:

Answer:

??

Explanation:

La fórmula: P = W/t  ó  W = P x t. donde:

P = potencia

W = trabajo

t = tiempo

Otra fórmula de potencia es: P= I x V

Proceso de carga de un capacitor - condensador

Una fórmula muy importante que también hay que tener en cuenta es: V = q/C que indica que el voltaje es proporcional a la carga que hay en un condensador.

De la fórmula de potencia P= I x V y considerando que la corriente es constante (corriente continua), entonces la potencia es proporcional al voltaje.  Si el voltaje aumenta en forma lineal, la potencia aumentará igual. Ver el siguiente diagrama.

Como la potencia varía en función del tiempo, no se puede aplicar la fórmula W = P x t, para calcular la energía transferida. Pero observando el gráfico, se ve que esta energía se puede determinar midiendo el área bajo la curva de la figura.

Energía Almacenada en un Condensador - Capacitor

El área bajo la curva es igual a la mitad de la potencia en el momento “t”, multiplicada por “t”.

Entonces: W = (P x t) / 2. Pero se sabe que P = V x I. Si se reemplaza esta última fórmula en la anterior se obtiene: W = (V x I x t) / 2, y como I x t = CV = Q, entonces para saber cuanta energía (W) hay en un condensador usamos una de las siguientes fórmulas:

W = (CV2/2) julios

W = (QV/2) julios

W  = (Q2/2C) julios

, donde:

W = Trabajo (Energía) en julios

C = Capacidad en faradios

V = voltaje en voltios en los extremos del condensador

Q = carga del condensador

Answer with the given explanations below: First the given formula that looks like this is: or where:

P = power

W = work

t = time

Next with another given power formula that looks like this is:

This is the charging process of a capacitor - capacitor #1.

Then it's a very important given formula that it must also be taken into account is: which it was indicated that the voltage is proportional to the charge on a capacitor.

In the following below, from the given power formula that looks like this is: and we are considering that the current is the constant (direct current), and then the power is proportional to the voltage. If the voltage increases linearly, the power will increase the same. See the following diagram. (I'm sorry, Yhungbabe, I don't have the diagram to show you in order to refer to the total energy stored in the capacitor because I havenèt learned the energy stored in the capacitor)

Anyway, since the power varies as a function of the time, the given formula that looks like this is: cannot be applied to calculate the energy transferred. But looking at the graph, it seems that this energy can also be determined by measuring the area under the curve of the figure.

This is The Energy Stored in a Capacitor - Capacitor #2.

The area under the curve is equal to the half of the power at time "t", being multiplied by "t".

Then with the given formula below that looks like this is:

But it's known that If this is the last given formula is being replaced in the previous one, we obtain the new given formula that looks like this is: and as another new given formula that looks like this is: there's so to find out how much energy (W) that there's in a capacitor that we use in one of the new given formulas that looks like in the listed below are:

joules

joules

joules  

Now finally where:

W = Work (In The Energy) in Joules

C = Capacity in the farads

V = voltage in the volts at the ends of the capacitor

Q = a capacitor charge

I apologize for the late answer and the replies, so anyway, I use the online language translator in order to translate Spanish to English for you in order to understand my work given below, so, I hope my answer with the given explanation below here is very helpful to your own question about how to calculate the total energy stored in the capacitor with the image has been provided, please mark me as Brainliest and have a great rest of the day! :D

Sincerely,

Jason Ta,

The Ambitious of The Brainly And The Role of The TDSB And WHCI Student of The High School.

Answer:

187.5 m/s (i think)

Explanation:

If you use the formula V= T times displacement you can find this out by doing the following-

Displacement equals 75 m

T equals 2.5 hrs

75x2.5= 187.5

and since velocity is measured in m/s, it becomes

187.5 m/s

The answer is:

An/a inelastic collision

Answer:

Acceleration

Explanation:

Its speed or velocity change

Answer:

Mid-ocean ridges around the globe are linked by plate tectonic boundaries and the trace of the ridges across the ocean floor appears similar to the seam of a baseball.

Explanation:

Projectile motion is exemplified by actions like throwing a ball straight up,  a ball and giving it speed at an angle to the horizontal, or simply dropping something and letting it fall freely. Gravity is the only force acting on the object during projectile velocity.

Horizontal distance traveled by the ball is 29.86 m

Launch angle x  = 44 °

time period of flight = 2.5s

Time period of Projectile T = \(\frac{2u sin x}{g}\)  , g=acceleration due to gravity

2.5 = \(\frac{2 X u sin 44}{9.2}\)

Where u=initial velocity = 16.66 m/s

Range of Projectile is given by

R = \(\frac{u^{2} sin 2x }{g}\)

R= \(\frac{16.66^{2} sin 2x44}{9.2}\)

R =  29.86 m

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(a) The gas of interstellar medium can be detected from the radiations of photons of  wavelength 21 cm.

(b) The gas of interstellar medium can be detected from the absorption lines present in the light from distant stars, which must be caused by a medium of density and temperature other than that of the stars emitting the lights.

Interstellar medium is the matter and radiation that exist in the space between the star systems in a galaxy.

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Answer:

natural is the answer

Friction is a natural force which exist

Answer:

wave length

Explanation:

Answer:

the advantage gained by the use of a mechanism in transmitting force specifically : the ratio of the force that performs the useful work of a machine to the force that is applied to the machine.

Explanation:

Mechanical advantage is a measure of the force amplification achieved by using a tool, mechanical device or machine system. The device trades off input forces against movement to obtain a desired amplification in the output force. The model for this is the law of the lever.

To find the speed at which a bicycle and its rider, with a combined mass of 120 kg, have the same momentum as a 1700 kg car traveling at 5.2 m/s, we can apply the principle of conservation of momentum. The speed of the bicycle and rider is found to be approximately 73.333 m/s.

The momentum of an object is given by the product of its mass and velocity. To have the same momentum as the car, the total momentum of the bicycle and rider must equal the momentum of the car. Mathematically, we can express this as (mass of bicycle and rider) * (velocity of bicycle and rider) = (mass of car) * (velocity of car). Solving for the velocity of the bicycle and rider, we find that it is approximately 88.5 m/s.

This means that the bicycle and rider, despite having a significantly smaller mass, must travel at a higher speed to have the same momentum as the car.To find the speed at which the bicycle and its rider have the same momentum as the car, we can set up the equation for momentum:

Momentum of the bicycle and rider = Momentum of the car

The momentum of an object is given by the product of its mass and velocity:

(mass of the object) × (velocity of the object) = momentum

the speed of the bicycle and rider as 'v' (in m/s). The mass of the bicycle and rider is 120 kg. The mass of the car is 1700 kg, and it is traveling at a velocity of 5.2 m/s.

For the bicycle and rider:

(120 kg) × (v) = momentum

For the car:

(1700 kg) × (5.2 m/s) = momentum

Since the two momenta are equal, we can equate them:

(120 kg) × (v) = (1700 kg) × (5.2 m/s)

Now we can solve for 'v':

v = (1700 kg × 5.2 m/s) / 120 kg

v ≈ 73.333 m/s

Therefore, the bicycle and rider would have the same momentum as the car when they are traveling at a speed of approximately 73.333 m/s.

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When Diego is in the race, he would be using only aerobic exercise.

The term aerobic exercise has to do with the type of exercise that require brisk repetitive movements in which the consumption of oxygen is elevated during the process.

A person tends to breath faster and more deeply when carrying out an aerobic exercise and the rapid movements is the reason why there is an intense demand for oxygen in the process.

As such, when Diego is in the race, he would be using aerobic exercise.

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The correct answer is option B. This statement is false.

Antoine Lavoisier in the year 1789 gave few of his postulates.

One of the major discovery was based on mass. He said "mass can never be created nor destroyed, it remains the same all time".

This was a major discovery that outlined the figure of mass as constant.

With this discovery he also gave a postulates about mass in chemical reaction.

In chemical reaction, there are many irreversible changes takes place and many times it is forming a whole new product.

In such condition also mass remains the same.

This is how the conservation of mass came into light.

The law states that "in chemical reaction the mass can never be changed. The mass of product will be the mass of reactants, only, the form might change."

For example, if we take 5 g of salt and 25 ml water as reactants and we mix them together then after mixing them together the salt will be 5 g only and the water will also remain 25 ml.

This is the law of conservation of mass which states mass of reactants is equal to the mass of product. And thus, the statement given in the question is false.

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A sugar water solution does not conduct electricity because it does not have free ions that can carry electric charge.

When sugar dissolves in water, it does not dissociate into ions, which are necessary for the flow of electricity through a solution.Electricity conduction requires the presence of free-moving ions to carry the electric charge. In a sugar water solution, there are no free-moving ions, and therefore, it cannot conduct electricity. Therefore, a sugar water solution does not conduct electricity and is considered to be a non-electrolyte.

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Answer:

-1

Explanation:

count 3 spaces in T and go to the object and it should be at -1. I hope this is correct and helps you!

Answer:

Explanation:

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Rewrite using the commutative property of multiplication.

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Multiply

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Answer:

0.00025 kilometers

Explanation:

divide the length value by 1e+6

Answer:

250 mm = 0.00025 km.

Explanation:

250 mm equal 0.00025 km

Conversion details

To convert mm to km use the following formula:

1 mm equals 0.000001 km

So, to convert 250 mm to km, multiply 0.000001 by 250 i.e.,

250 mm = 0.000001 * 250 km = 0.00025 km

(hope this helps can i plz have brainlist :D hehe)

In order to find the horizontal and vertical components of the given vector, we can use the formulas below:

So, if the magnitude of the resultant vector is 145 m/s and the angle is 55°, we have:

The 50 kg mass on 4 m2  on will exert more pressure.

Pressure is described as the force applied perpendicular to the surface of an object per unit area over which that force is distributed.

Mathematically pressure = force / area

From Newton's second law

force = mass x acceleration where Acceleration due to gravity = 9.8m/s²

Comparing both pressures where

P1 = 100x 9.8 / 10

p1 = 100 pa

p2 = 50 x  9.8/ 4

p2 = 125 pa

Therefore The 50 kg mass on 4 m2  on will exert more pressure since it exerts more pressure.

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Answer:

The answers anaphase. anaphase is the fourth phase of mitosis

In order to determine the density of a cylinder, we need to know its mass and volume. The mass of the cylinder is given as 29.2 grams, but the volume is not provided. Without the volume, it is impossible to calculate the density of the cylinder.

As for whether or not the cylinder will float in water, that also depends on its density. If the density of the cylinder is less than the density of water (1), then it will float. However, without knowing the density of the cylinder, it is impossible to determine whether or not it will float in water.