The heat of vaporization of a liquid is 1,340 joules per gram. What is the minimum number of joules needed to change 40. 0 grams of the liquid to vapor at the boiling point?.

According to the given statement is the 59.21° angle was her force directed.

The word "force" has a specific meaning in science. At this level, calling a force a shove or a pull is entirely appropriate. A charge is not really something an object "has in it" or that it "contains." One thing experiences a force from another. Living organisms or inanimate objects are not the only things that can be considered forces. Every time two items interact, a force is exerted on every one of the objects. The force is no longer felt by the two objects when the interaction ends.

Work done = force × distance

236J = 18.9cos(o) × 24.4

236/24.4 = 18.9cos(o)

(0.5117)cos^-1 = (o)

59.21°

To know more about Force visit:

https://brainly.com/question/13191643

#SPJ4

Either total kinetic energy of  the neutron is transferred to the atomic nucleus or none of kinetic energy of  the neutron is transferred.

An elastic collision occurs when two bodies collide and their combined kinetic energy after the collision is equal to their combined kinetic energy before to the collision. Only in the absence of a net conversion of kinetic energy into other forms do elastic collisions occur.

Let, mass of the neutron be m.

So, mass of the atom be 12.5 m.

Initial speed of the neutron be u and final speed of neutron and atom be v and V.

So, Appling conservation of momentum,

mu + 0 = mv +12.5mV

⇒ u = v + 12.5V            (1)

Again, applying conservation of kinetic energy, we get:

1/2mu² =  1/2mv² +1/2 × 12.5mV²

⇒ u² = v² + 12.5V²      (2)

Hence, from equation (1) and (2), it can conclude that either total kinetic energy of  the neutron is transferred to the atomic nucleus or none of kinetic energy of  the neutron is transferred.

Learn more about elastic collision here:

https://brainly.com/question/29659355

#SPJ1

From the analysis, it can be concluded that planet A has the strongest gravitational field, followed by planet C, and planets B and D have the same gravitational field strength.

The gravitational force acting on various masses is measured on different planets. The table shows the measured values for the forces acting on the corresponding masses:Planet Force (N) Mass (kg)A 8.0 0.50B 30 3.0C 45 3.0D 60 6.0

Method for comparing the gravitational field strengths on the different planets:First, we can use the formula for calculating gravitational force: \(`F = G (m_1m_2 / r^2)`\)where G is the universal gravitational constant `\(6.67 * 10^{-11 }Nm^2/kg^2\), m1 and m2 are the masses of the two objects in kg, and r is the distance between the centers of the objects in meters.

We know that the force is proportional to mass (F = ma). So we can calculate the acceleration due to gravity (g) on each planet by dividing the force by the mass. Therefore, we can use the formula: `g = F / m`.

Comparing the gravitational field strengths on the different planets:We will calculate the acceleration due to gravity (g) on each planet.

For planet A: `

g = F / m

= 8.0 N / 0.50 kg

= 16 \(m/s^2\)`

For planet B: `g = F / m

= 30 N / 3.0 kg

= 10 \(m/s^2\)

For planet C: `g = F / m

= 45 N / 3.0 kg

= 15 \(m/s^2\)

For planet D: `g = F / m

= 60 N / 6.0 kg

= 10 \(m/s^2\)

`So we see that planet A has the strongest gravitational field, followed by planet C, then planet B and planet D have the same gravitational field strength.

Know more about   gravitational field   here:

https://brainly.com/question/31829401

#SPJ8

Answer:

In what forms is the electrical energy that is supplied to a string of decorative lights dissipated? It is converted to thermal energy and light energy.

Answer:

Energy loss. When energy is transformed from one form to another, or moved from one place to another, or from one system to another there is some energy loss. This means that when energy is converted to a different form, some of the input energy is turned into a highly disordered form of energy, like heat.

Energy losses in lights are very large; most of the input energy is lost in the form of heat energy.

Explanation:

The tension in the horizontal segment of the wire can be found by applying the principle of conservation of energy. When the system is released, the potential energy stored in the spring is converted into kinetic energy.

This kinetic energy is then transferred to the mass as it moves down, and finally converted into potential energy again as the mass reaches its lowest point.

At this point, the tension in the horizontal segment of the wire is equal to the weight of the mass.The potential energy stored in the spring is given by the formula: PE = 1/2 k x^2, where k is the spring constant and x is the displacement from the equilibrium position. When the mass is released, this potential energy is converted into kinetic energy, which is given by the formula: KE = 1/2 m v^2, where m is the mass and v is the velocity.

As the mass moves down, its velocity increases due to the force of gravity. At the lowest point, the velocity is maximum and the kinetic energy is equal to the potential energy stored in the spring. At this point, the tension in the horizontal segment of the wire is equal to the weight of the mass, which is given by the formula: F = m g, where g is the acceleration due to gravity.

Therefore, the tension in the horizontal segment of the wire can be found by setting the weight of the mass equal to the potential energy stored in the spring and solving for the tension. The answer should be expressed in units of Newtons (N), which is the unit of force.

To know more about force of gravity refer to

https://brainly.com/question/13634821

#SPJ11

Answer:

I need the picture to amswer the question thay's why it says " "

Answer:

Explanation:

Kinetic Energy = 0.5(Mass)(Velocity2)

Kinetic energy= 0.5 × 10kg × (50m/s)2

Kinetic Energy = 5kg × 2500m/s

Kinetic energy = 125000 J ( Ans)

Answer:

23.6

Explanation:

The net force applied on the truck is 267.8 N.

The acceleration of the truck is 3.15 m/s².

The definition of force in physics is: The push or pull on a massed object changes its velocity.

An external force is an agent that has the power to alter the resting or moving condition of a body. It has a direction and a magnitude.

A spring balance can be used to calculate the Force. The Newton is the SI unit of force.

Given parameters:

Force applied on the truck: F = 295 N.

Mass of the trick: m = 85 kg.

Weight of the truck: W = mg = 85 kg × 10 m/s² = 850 N.

The coefficient of friction between the rock and the ground is μ = 0.32.

Frictional resistance force applied on the truck: f = μ N =  μW

= 0.32×85 N

= 27.2 N.

Hence, net force applied on the truck = F - f = 295 N - 27.2 N = 267.8 N.

Hence, acceleration of the truck is = 267.8 N/85 kg = 3.15 m/s².

Learn more about force here:

https://brainly.com/question/13191643

#SPJ2

ANSWER

False.

EXPLANATION

In radioactive decay (or nuclei decay), an unstable nucleus emits radiation into a nucleus that is table and has less energy and a lower mass.

Therefore, nuclei decay from a less stable form to a more stable form.

The answer is false.

Answer:

The maximum height reached by the two blocks is approximately 0.1147959 × v₀²

Explanation:

The mass of block B = m

The mass of block A = 3·m

The initial velocity of block B, v₂ = 0 m/s

The initial velocity of block A, v₁ = v₀

The amount of friction between the blocks and the surface = Negligible friction

By the Law of conservation of linear momentum, we have;

Total initial momentum = Total final momentum

3·m·v₁ + m·v₂ = (3·m + m)·v₃ = 4·m·v₃

Plugging in the values for the velocities gives;

3·m × v₀ + m × 0 = (3·m + m)·v₃ = 4·m·v₃

∴ 3·m × v₀ =  4·m·v₃

\(\therefore v_3 = \dfrac{3}{4} \times v_0 = 0.75 \times v_0\)

The kinetic energy, K.E. of the combined blocks after the collision is given as follows;

K.E. = 1/2 × mass × v²

\(\therefore K.E. = \dfrac{1}{2} \times 4\cdot m \times \left (\dfrac{3}{4} \cdot v_0 \right )^2 = \dfrac{9}{8} \cdot m\cdot v_0^2\)

The potential energy, P.E., gained by the two blocks at maximum height = The kinetic energy, K.E., of the two blocks before moving vertically upwards

The potential energy, P.E. = m·g·h

Where;

m = The mass of the object at the given height

g = The acceleration due to gravity

h = The height at which the object of mass, 'm', is located

Therefore, for h = The maximum height reached by the two blocks, we have;

P.E. = K.E.

\(m \cdot g \cdot h = \dfrac{9}{8} \cdot m\cdot v_0^2\)

\(h = \dfrac{\dfrac{9}{8} \cdot m\cdot v_0^2}{m \cdot g } = \dfrac{9}{8} \cdot \dfrac{ v_0^2}{ g } = \dfrac{9}{8} \cdot \dfrac{ v_0^2}{ 9.8} = \dfrac{42}{392} \cdot v_0^2 \approx 0.1147959 \cdot v_0^2\)

The maximum height reached by the two blocks, h ≈ 0.1147959·v₀².

Answer:

The answer is thallium.

Explanation:

The two major lines of evidence that support the Big Bang theory and have not been successfully explained by alternative models are:

The existence and specific characteristics of the observed cosmic microwave background (CMB): The CMB is a form of radiation that fills the entire universe and is believed to be the leftover heat from the early universe when it was hot and dense. The Big Bang theory predicts the existence of the CMB and its specific characteristics, such as its uniformity and specific temperature fluctuations, which have been observed and confirmed through various experiments.

The observed overall chemical composition of the universe: The Big Bang theory predicts that the early universe was primarily composed of hydrogen and helium, with trace amounts of other elements. Observations of the chemical composition of the universe have confirmed this prediction and provide strong support for the Big Bang theory.

The other options provided in the question are not accurate as they do not represent the two major lines of evidence that support the Big Bang theory. The expansion of the universe is actually a consequence of the Big Bang theory, rather than evidence for it. The observed ratio of spiral to elliptical galaxies is not a major line of evidence for the Big Bang theory. The episode of inflation and separation of gravity from other forces are both aspects of the Big Bang theory itself and not independent lines of evidence supporting it. Lastly, the statement "the early universe was hot and dense" is a prediction of the Big Bang theory and not a line of evidence supporting it.

Learn more about Big Bang theory here:

https://brainly.com/question/1933033

#SPJ11

The speed of the second minion after the collision is 4.9 m/s.

A collision is considered elastic if it does not result in a net decrease in the system's kinetic energy. In an elastic collision, both momentum and kinetic energy are preserved.

In an elastic collision, the kinetic energy is essentially unchanged before and after the contact and is not changed into another type of energy.

Either one dimension or two dimensions are possible. Perfectly elastic collision is not feasible in reality since there will always be some energy exchange, no matter how tiny.

Although the linear momentum of the entire system does not change, the individual momenta of the relevant components do vary; these momentsa are equal and opposite in size and cancel each other out, preserving the starting energy.

To learn more about linear momentum  visit:https://brainly.com/question/27988315

#SPJ4

The energy stored in a 2.60-cm-diameter, 14.0-cm-long solenoid that has 150 turns of wire and carries a current of 0.780 a is 0.016 joules.

The energy stored in a solenoid is given by the equation:

U = (1/2) * L * I²

where U is the energy stored, L is the inductance of the solenoid, and I is the current flowing through it.

The inductance of a solenoid can be calculated using the equation:

L = (μ * N² * A) / l

where μ is the permeability of the medium (in vacuum μ = 4π × 10⁻⁷ H/m), N is the number of turns of wire, A is the cross-sectional area of the solenoid, and l is the length of the solenoid.

First, let's calculate the inductance of the solenoid:

μ = 4π × 10⁻⁷ H/m

N = 150

A = πr² = π(0.013 m)² = 0.000530 m²

l = 0.14 m

L = (4π × 10⁻⁷ H/m * 150² * 0.000530 m²) / 0.14 m = 0.051 H

Now, we can calculate the energy stored in the solenoid:

I = 0.780 A

U = (1/2) * L * I^2 = (1/2) * 0.051 H * (0.780 A)² = 0.016 J

Therefore, the energy stored in the solenoid is 0.016 joules.

Learn more about solenoid at: https://brainly.com/question/3821492

#SPJ11

Answer:gravity

Explanation:

gravity holds the planets in its orbit

Answer:

Newton's first law is called the law of inertia.

Explanation:

Designing a quiet generator to reduce the amount of hazardous noise is an

example of Engineering risk control.

Engineering risk control involves the process of designing or modification

of a product in order to reduce the risks or hazards associated with it. The

methods involved include:

In this scenario, a quiet generator was designed  to reduce the amount of

hazardous noise which correctly represents an Engineering risk control.

Read more about Engineering risk control here https://brainly.com/question/21213968

Answer:

10m South East

Answer:

They would attract one another

Explanation:

The interaction between two like-charged objects is repulsive. ... Positively charged objects and neutral objects attract each other negatively charged objects and neutral objects attract each other.

The results illustrated here were hidden by means of Obscurational Cloaking technology.

This technology is used to hide, conceal, obscure, and withhold results.

Answer:

a)  \(m_v= 56.16 Kg\)

    \(m_l= 14.04 Kg\)

b)  \(\mu=1.37\%\)

Explanation:

From the question we are told that:

Volume of tank \(V_t=1m^3\)

Temperature of \(CO_2=-17^oC\)

Quality of the mixture \(Q= 70%\)

Specific Volume constants at \(-17^oC:\)

 \(v_f = 0.9827*10^{-3} m3/kg\)

 \(v_g =1.756*10^{-2} m3/kg.\)

Generally the equation for Specific Volume is mathematically given by

 \(v = v_f + x (v_g -v_f)\)

 \(v= (0.9827 * 10^{-3} ) + 0.8 * (17.56 * 10^{-3} -0.9827 * 10^{-3})\)

 \(v= 0.014244 m3/Kg\)

Generally the equation for Mass is mathematically given by

 \(m=\frac{v'}{v}\)

 \(m=\frac{1}{0.014244}\)

 \(m=70.20 Kg\)

Generally the Mass of saturated Vapor is mathematically given by

 \(m_v=0.8 * (70.202)\)

 \(m_v= 56.16 Kg\)

Generally the Mass of saturated Liquid is mathematically given by

 \(m_l = (70.20 Kg)-(56.16 Kg)\)

 \(m_l= 14.04 Kg\)

b)

Generally the equation for Volume is mathematically given by

 \(v_l = m_l x v_f\)

 \(v_l= (14.04 Kg) (0.9827 x 10{-3} m3/kg)\)

 \(v_l= 0.01379 m^3\)

Therefore Percentage of liquid

 \(\mu = \frac{v_l}{v} * 100 \%\)

 \(\mu= [(0.01379 m^3)/(1 m^3)] *100 \%\)

 \(\mu=1.37\%\)

If you walk at 1 km/h down the aisle towards the front of a train that moves at 60 km/h, your speed relative to the ground would be 61 km/h.

This is because we add the velocity of the person to the velocity of the train to determine their combined velocity relative to the ground. If the person were to walk in the opposite direction of the train, their speed relative to the ground would be 59 km/h since we would subtract their velocity from that of the train. The same concept applies to any situation where two objects are moving relative to each other.

For example, let's say that two cars are driving in the same direction on a highway. Car A is driving at 70 km/h and Car B is driving at 90 km/h.

The relative velocity of Car A with respect to Car B would be 20 km/h (90 km/h - 70 km/h) while the relative velocity of Car B with respect to Car A would be -20 km/h (70 km/h - 90 km/h).

So therefore if you walk at 1 km/h down the aisle towards the front of a train that moves at 60 km/h, your speed relative to the ground would be 61 km/h.

Learn more about speed relative at:

https://brainly.com/question/32038972

#SPJ11

Answer:

1025meter

Explanation:Distance is speed times time.so 3hx115km/h=345km

                                                                              5hx136km/h=680km

                                                                              345km+680km=1025km

Answer:

1025

Explanation:

According to the octet rule, the first energy level, also known as the K shell, is stable with a maximum of 2 electrons. This is because the K shell only has one subshell, which can hold a maximum of 2 electrons.

The outermost energy level, also known as the valence shell, is stable with a maximum of 8 electrons. This is because the valence shell has multiple subshells, including s, p, d, and f subshells, which can hold a total of 8 electrons. The octet rule states that atoms tend to gain, lose, or share electrons in order to achieve a full outermost energy level with 8 electrons, which results in greater stability.

The octet rule states that atoms are most stable when they have a full set of electrons in their outermost energy level, which typically means having 8 electrons (except for the first energy level). This is why atoms often form bonds with other atoms to achieve this stable configuration.

To know more about octet rule visit:-

https://brainly.com/question/865531

#SPJ11

The critical radius of plastic insulation is calculated using the formula, rcr = (2 * C1 * P1) / (C2 * P2). By substituting the given values, rcr = (2 * 0.36 * 1070) / (0.045 * 1) = 6.384 inches. Therefore, the critical radius of the plastic insulation is 6.384 inches.

We can calculate the critical radius of plastic insulation using the following formula, rcr = (2 * C1 * P1) / (C2 * P2)Where C1 is the heat transfer coefficient for convection from the outer surface of the insulation, P1 is the density of conductor, C2 is the heat transfer coefficient for convection from the inner surface of the insulation, and P2 is the density of insulation.

The given values are,Inner radius of conductor, r1 = 0.5 inchesOuter radius of conductor, r2 = 0.75 inchesThermal conductivity of conductor, k1 = 200Btu/(hr.ft.F)Thermal conductivity of insulation, k2 = 0.045 Btu/(hr.ft.F)Temperature of inner surface of conductor, T1 = 100 FTemperature of outer surface of insulation, T2 = 80 F

Heat transfer coefficient for convection from outer surface of insulation, C1 = 0.36 Btu/(hr.ft2.F)Heat transfer coefficient for convection from inner surface of insulation, C2 = 0.05 Btu/(hr.ft2.F)Density of insulation, P2 = 1 lbm/ft3Density of conductor, P1 = 1070 lbm/ft3Now, substituting these values in the formula of rcr,rcr = (2 * C1 * P1) / (C2 * P2)rcr = (2 * 0.36 * 1070) / (0.045 * 1)rcr = 6.384 inchesTherefore, the critical radius of the plastic insulation is 6.384 inches.

To know more about plastic visit.

https://brainly.com/question/28420086

#SPJ11

The period of an orbiting chunk of ice in the rings of Saturn is approximately 333,170.7 years.

The period of an orbiting chunk of ice can be found using Kepler's third law, which states that the square of the period of an orbiting object is proportional to the cube of its average distance from the planet's center.
To find the period, we first need to calculate the average distance of the orbiting chunk of ice from the planet's center. This can be done by finding the average of the inner and outer radii of the rings:
Average distance = (inner radius + outer radius) / 2
               = (73,000 km + 170,000 km) / 2
               = 121,500 km
Next, we can use Kepler's third law to find the period. Let T represent the period, and r represent the average distance:
T^2 = k * r^3
Solving for T, we get:
T = sqrt(k * r^3)
Since we are only interested in the magnitude of the period, we can disregard the constant k. Thus, the period is given by:
T = sqrt(r^3)

Substituting the value of r, we get:
T = sqrt(121,500^3)

Calculating this, we find:
T ≈ 333,170.7 years
Therefore, the period of an orbiting chunk of ice in the rings of Saturn is approximately 333,170.7 years.

Learn more about orbiting from the following link:

https://brainly.com/question/28888362

#SPJ11

Answer:

2.9

Explanation:

es 2 minutos con 9 segundos seria algo así (1450)÷(500)

Gamma rays widely used in medical sector mostly in radio pathy and scientific research laboratories for sterilization.

Define gamma rays:

Electromagnetic energy which is emitted after disintegration or decaying of two different radioactive nuclei is considered as gamma rays.

Uses of gamma rays:

Gamma rays have high penetration power with particular matter and go through ionization process mostly by photoelectric effect. The impact of gamma rays can be hazardous upon human body due to high penetration and increases health risk.

Gamma rays mostly used for sterilization process which mostly use to destroy microorganism and sterilize the surgical equipment and different laboratory equipment. Food industries also use this ray to maintain quality and hygiene of food.

To know more about Gamma rays click here

https://brainly.com/question/2399890

#SPJ1

Answer:

the amount of each charge and the distance between them. ... Coulomb's law states the the electric force between two charges is proportional to the product of the two charges and inversally proportional to the square distance that separates their centers.

Answer:

its electrons

Explanation:

only electrons stays outside the nucleus unlike protons and neutrons and it has little to no mass

pertaining to the oscilloscope and in accordance with the details in the laboratory manual. what axis quantifies the voltage intensity? Voltage (on the vertical axis) versus time is plotted on the oscilloscope's graph (on the horizontal axis).

An oscilloscope is a class of electronic test equipment that graphically shows changing electrical voltages as a two-dimensional plot of one or more signals as a function of time.

The major goals are to show on the screen waveforms that are repeating or singular and would otherwise occur too quickly for the human eye to see. The waveform that is being presented can then be examined for characteristics like amplitude, frequency, rising time, time interval, distortion, and others.

Learn more about oscilloscope, from :

brainly.com/question/30809641

#SPJ1