As increase the number of branches in parallel circuit, the overall current in the power sourcea- stays the sameb- increasesc- decreases

The final temperature of the water is equal to 55°C.

Heat energy is the energy used to increase the temperature of an object (ΔT), which depends on the amount of heat used (Q) and the specific heat (c) of the object.

This heat energy is expressed in the formula:

                               Q = m. c. ΔT  

So, the temperature change formula:

ΔT = Q/mc

This question is given:

Q = 5000 J

m = 2.38892 x 10⁻²

c = 4186 j/kgC

T₁ = 5°C

So, the temperature is:

ΔT = Q/mc

ΔT = 5000/2.38892 x 10⁻² x 4186

ΔT = 5000/100

ΔT = 50°C

For the final temperature:

ΔT = T₂ - T₁

T₂ = ΔT + T₁

T₂ = 50°C + 5°C

T₂ = 55°C

Learn more about heat energy at https://brainly.com/question/20382572

#SPJ4

The Lorentz force is a force that acts on a charged particle in an electric field. The force is proportional to the charge of the particle and the strength of the electric field. The direction of the force is perpendicular to both the electric field and the velocity of the particle.

In the case of a cathode ray tube, the beam of electrons is negatively charged. When the electrons pass through the electric field between the plates, they experience a force that is directed towards the positive plate. This force deflects the beam of electrons towards the positive plate. The amount of deflection is proportional to the strength of the electric field and the charge of the particles. Increasing the deflecting voltage across the plates increases the strength of the electric field, which in turn increases the amount of deflection of the beam.

The deflection of the beam can be used to control the position of the beam on the screen of the cathode ray tube. This is how images are created on a cathode ray tube display.

To know more about cathode ray tube, click here:-

https://brainly.com/question/32443811

#SPJ11

Answer:

117

Explanation:

the formula is P1V1 over T1 is equals to P2V2 over T2

Answer:

A magnetic field surrounds any electric charge in motion. ... The distance between the lines indicates relative strength of the magnetic field. The closer the lines are, the stronger the magnetic field is. Iron filings and a compass may be used to trace the shape, strength, and direction of magnetic field lines.

Explanation:

Answer:

According to our principle, when an object is slowing down, the acceleration is in the opposite direction as the velocity. Thus, this object has a negative acceleration.

An object is moving to the left and is slowing down. its acceleration is acting in opposite direction of motion, that is, in right direction.

The rate at which velocity changes with time in terms of both speed and direction is referred to as acceleration. A point or object moving in a straight line is accelerated if it accelerates or decelerates. Even if the speed is constant, motion on a circle is accelerated because the direction is constantly changing. Both effects contribute to acceleration in all other types of motion.

Acceleration is a vector quantity because it has both a magnitude and a direction. Velocity is a vector quantity as well. The change in the velocity vector in a time interval divided by the time interval is defined as acceleration.

Hence, an object is moving to the left and is slowing down. its acceleration is acting in opposite direction of motion.

Learn more about acceleration here:

brainly.com/question/12550364

#SPJ2

The satellite travels approximately 1,798.07 km in 1 hour. The circumference of the satellite's orbit is 8,600π km, and the satellite orbits Mars every 15 hours.

To find out how far the satellite travels in 1 hour, we need to determine its orbital circumference.

The circumference of a circular orbit can be calculated using the formula:

C = 2πr

where C is the circumference and r is the radius of the orbit.

In this case, the satellite is orbiting Mars, which has a radius of approximately 3,300 km. The satellite is 1,000 km above the surface of Mars. Therefore, the radius of the satellite's orbit is the sum of the radius of Mars and the distance above the surface:

r = 3,300 km + 1,000 km = 4,300 km

Now we can calculate the circumference:

C = 2π(4,300 km) = 8,600π km

Since the satellite orbits Mars every 15 hours, the distance traveled in 1 hour is 1/15th of the circumference:

\(\begin{equation}\text{Distance traveled in 1 hour} = \frac{1}{15} \cdot 8600\pi \text{ km}\)

Calculating this value gives us:

Distance traveled in 1 hour ≈ 1,798.07 km

Therefore, the satellite travels approximately 1,798.07 km in 1 hour.

To know more about the circumference refer here :

https://brainly.com/question/17191505#

#SPJ11

You need the atomic mass of calcium, oxygen and carbo, the balanced chemical equation and the molar ratio between Calcium carbonate and calcium oxide.

1. If you know the atomic mass of the elements, you can calculate the molar mass of Calcium Carbonate (CaCO3) and the mass of Calcium Oxide (CaO).

2. The balanced equation is CaCO3 -> CaO + CO2

3. The molar ratio between CaCO3 and CaO is 1:1, which means that the descomposing of one mole of calcium carbonate produce one mole of calcium oxide.

4- The last thing you should do is to conver the 4.7 kg of CaCO3 to moles and with the molar ratio calculate the mass of CaO

Explanation:

Any confusions you may ask!

Explanation:

What do we call a word that tells about an action ?

The final speed of the skier depends on the slope's angle, the coefficient of friction, and the distance traveled. More information is needed to calculate the final speed accurately.

The final speed of the skier depends on several factors such as the slope's angle, the coefficient of friction between the skier and the snow, and the distance traveled. Without knowing these parameters, it is impossible to calculate the final speed accurately. However, we can use the conservation of energy principle to estimate the final speed.

According to the principle of conservation of energy, the total energy of the system remains constant. Initially, the skier has only potential energy, which is converted into kinetic energy as the skier slides down the slope. Assuming there is no significant air resistance, the total mechanical energy of the skier remains constant. Therefore, the kinetic energy gained by the skier equals the potential energy lost by the skier.

The potential energy of the skier is given by mgh, where m is the mass of the skier, g is the acceleration due to gravity, and h is the height of the slope. When the skier reaches the bottom of the slope, the potential energy is converted entirely into kinetic energy, which is given by (1/2)mv^2, where v is the final velocity of the skier. Setting these two equations equal, we can solve for v.

v = sqrt(2gh)

where sqrt represents the square root function.

In conclusion, the final speed of the skier can be estimated using the above equation if the height of the slope is known. However, for a more accurate calculation, other factors such as friction should also be considered.

learn more about speed here:

https://brainly.com/question/28224010

#SPJ11

Answer:

72.324 J

Explanation:

Formula for gravitational potential energy is given by;

GPE = mgh.

Where;

m = mass

g = acceleration due to gravity

h = height

We are given;

m = 4.1 kg

h = 1.8 m

Thus;

GPE = 4.1 × 9.8 × 1.8 = 72.324 J

Answer:

The comparison of unknown quantity with known quantity is called measurement

Answer:

the size, length or amount of something is a measurement.

Explanation:

Measurements help in daily life and are important to development, accuracy and making decisions.

There are six isomeric alkenes with the formula \(C_5H_10\). These compounds differ in the connectivity of atoms and the location of the double bond.

Alkenes are a class of organic compounds that contain a carbon-carbon double bond (-C=C-). They are also called olefins, which means "oil-forming" in reference to their ability to form oily substances upon reaction with other chemicals. Alkenes have the general formula of CnH2n and are unsaturated hydrocarbons, meaning they have fewer hydrogen atoms compared to their saturated counterparts.

Alkenes are important in various fields, including the chemical industry, agriculture, and medicine. They are used to manufacture a wide range of products, such as plastics, solvents, and synthetic fibers. Alkenes are also used as starting materials for the synthesis of various chemicals, including pharmaceuticals. Due to their unique chemical properties, alkenes can undergo a variety of reactions, such as addition, oxidation, and polymerization.

To learn more about Alkenes visit here:

brainly.com/question/29283735

#SPJ4

Answer:

In this lab, we used a virtual spectrometer to analyze the elements present in unknown astronomical objects. We observed that Moon One had hydrogen, helium, and carbon present, while Moon Two had hydrogen, helium, lithium, sodium, carbon, and nitrogen present. Planet One had hydrogen, helium, lithium, sodium, and carbon present, while Planet Two had hydrogen, helium, lithium, sodium, carbon, and nitrogen present.

It is essential to use many types of equipment when studying space because the electromagnetic spectrum is made up of many different wavelengths and frequencies, and each one provides different information. If carbon was the most common element found in the moons and planets, oxygen would be missing, which is necessary for the carbon cycle to occur. The electromagnetic spectrum helps us find out the make-up of stars by allowing us to detect the different wavelengths and frequencies of light they emit, which can tell us the elements they are composed of.

It is useful to determine the elements that a planet or moon is made up of because it can provide insight into the planet's atmosphere, climate, and potential for life. Knowing the elements present can also help us understand the history of the planet or moon, such as how it was formed and how it has evolved over time.

v

Convert the given temperatures from celsius to kelvin since we are dealing with gas.

To convert to kelvin, add 273.15 to the temperature in celsius.

T1 = 22 + 273.15 = 295.15 k

T2 = 4 + 273.15 = 277.15 k

V1 = 0.5 L

Let's find the final volume (V2).

To solve for V2 apply Charles Law formula below:

the electric field is more than the threshold value and the capacitor will experience dielectric breakdown.

1. Given values are,
side length of metal plates, a = 3 cm and b = 6 cm
distance between the plates, d = 2.36 cm
voltage, V = 110 V
dielectric constant of water, k = 80.4
dielectric constant of new material, k2 = 3.75
a) To calculate the capacitance of capacitor, the formula is, C=εA/d  ……………… (1)
where A = area of plate, ε = permittivity, and d = separation distance between two plates.
We know that the permittivity of vacuum is given as, ε0 = 8.854 x 10^-12 F/m
The capacitance of capacitor can be expressed as,
C1 = ε0 (kA/d) …………….. (2)
where, ε0 = permittivity of vacuum, k = dielectric constant and A = area of plate.
Substituting the given values in equation (2),
C1 = 8.854 x 10^-12 x 80.4 x (0.03 x 0.06)/0.0236
C1 = 0.000132 F
Therefore, the capacitance of capacitor is 0.000132 F.

b) To calculate the new capacitance, the formula is given as,
C2 = k2ε0A/d ……………… (3)
where k2 is the dielectric constant of new material.
Substituting the given values in equation (3),
C2 = 3.75 x 8.854 x 10^-12 x (0.03 x 0.06)/0.0236
C2 = 0.000263 F
Therefore, the new capacitance is 0.000263 F.

c) The new voltage can be calculated as,
V2 = V1(C1/C2) …………… (4)
Substituting the given values in equation (4),
V2 = 110 (0.000132/0.000263)
V2 = 55 V
Therefore, the new voltage is 55 V.

d) The charge on each plate is given as,
Q = CV ………….. (5)
Substituting the given values in equation (5),
Q = 0.000132 x 110
Q = 0.0145 C
Therefore, the charge on each plate is 0.0145 C.

2. Given values are,
capacitance, C = 3.23 µF
area of plate, A = 6.35 mm^2
separation distance between two plates, d = ?
new capacitance, C2 = 5.63 mF
new dielectric constant, k2 = ?
voltage, V = 110 V
electric field between two plates, E = 8.99 x 10^4 N/C
working voltage, Vw = 63 V

a) The separation distance between two plates can be calculated as,
C1/C2 = d2/d1  …………….. (6)
where d1 and d2 are the initial and final separation distance, respectively.
Substituting the given values in equation (6),
3.23 x 10^-6/5.63 x 10^-3 = d2/d1
d2 = 5.63 x 10^-3 x (d1/3.23 x 10^-6)
Area of plate, A = 6.35 mm^2 = 6.35 x 10^-6 m^2
The capacitance can be expressed as,
C = εA/d
d = εA/C
where ε = permittivity of dielectric material.
Therefore, substituting the given values in above equation,
d1 = ε x 6.35 x 10^-6/3.23 x 10^-6
d1 = 12.50 ε
Substituting the value of d1 in equation (6),
5.63 x 10^-3 = d2/12.50 ε
d2 = 70.38 ε
The separation distance between two plates is 70.38 ε.

b) The new dielectric constant can be calculated as,
C2 = k2ε0A/d2
k2 = C2d2/ε0A
Substituting the given values in above equation,
k2 = 5.63 x 10^-3 x 70.38 ε/(8.854 x 10^-12 x 6.35 x 10^-6)
k2 = 3.95
Therefore, the new dielectric constant is 3.95.

c) The new voltage can be calculated as,
V2 = V1(C1/C2)
Substituting the given values in above equation,
V2 = 110(3.23 x 10^-6/5.63 x 10^-3)
V2 = 0.063 V
Therefore, the new voltage is 0.063 V.

d) The electric field can be expressed as,
E = V/d
d = V/E
Substituting the given values in above equation,
d = 63/8.99 x 10^4
d = 7.01 x 10^-4 m
The voltage, V = 110 V > working voltage, Vw = 63 V

Learn more about electric field here :-

https://brainly.com/question/11482745

#SPJ11

Given data

*The given mass of the cart is m = 32.0 kg

*The given acceleration of the cart is

The formula for the magnitude of the net force acting on the object is given as

Substitute the known values in the above expression as

Thus, the magnitude of the net force acting on the cart is 160.0 N and the correct option is (B)

Physics, Engineering, and Industrial Research, Earth and Space Sciences, and Mathematics are the different areas that can be pursued in the Philippines. Bachelor's, Master's, and Ph.D. degrees are available in these fields.

Engineering is a regulated profession in the Philippines that requires licensure examination for professionals to work in the industry. In contrast, Mathematics and Physics have no licensing requirements.

Employment opportunities vary according to field and degree, with engineers, mathematicians, and physicists being in high demand in research and development, manufacturing, and construction.

RA 9184 is the Philippine government's procurement act that aims to provide clear guidelines and procedures for procurement activities in the public sector. It defines the roles and responsibilities of procurement personnel, specifies the procurement process and requirements, and establishes the accountability mechanisms for public procurement.

In conclusion, obtaining a degree in Physics, Engineering, and Industrial Research, Earth and Space Sciences, or Mathematics can lead to various employment opportunities.

While Engineering is a regulated profession in the Philippines, Mathematics and Physics do not require licensure exams. Additionally, the government has set specific guidelines for procurement activities in the public sector through RA 9184.

To know more about public procurement click on below link:

https://brainly.com/question/32502324#

#SPJ11

The support force acting on a 200-N girl standing on a weighing scale depends on the gravitational field strength of the location. The correct answer is option d) It depends on the gravitational field strength of the location.

The support force, also known as the normal force, is the force exerted by the surface on an object in contact with it. In this case, the weighing scale exerts a support force on the girl. According to Newton's third law of motion, the girl exerts an equal and opposite force on the weighing scale.
The gravitational field strength varies from location to location. It depends on the mass and distance from the centre of the Earth. Therefore, the support force acting on the girl will also vary depending on where she is standing.
For example, if the girl is standing on the surface of the Earth, where the gravitational field strength is approximately 9.8 m/s², the support force acting on her would be equal to her weight, which is 200 N. On the other hand, if she were standing on the Moon, where the gravitational field strength is approximately 1.6 m/s², the support force acting on her would be less than her weight.
In conclusion, the support force acting on a 200-N girl standing on a weighing scale depends on the gravitational field strength of the location.

To learn more about support force, refer:-

https://brainly.com/question/13743040

#SPJ11

Explanation:

Let thermal capacity of the vessel be C' J K-1

Heat energy given by hot water = 40 x 4.2 x (60 - 30) = 5040 J

Heat energy taken by cold water = 50 x 4.2 x (30 - 20) = 2100 J

Heat energy taken by vessel = C' x (30 - 20) = 10 C' J

If there is no loss of heat energy,

Heat energy given by hot water = Heat energy taken by cold water and vessel

or 5040 = 2100 + 10 C'

or 10 C' = 2940

or C'= 294 J K-1

Thus, thermal capacity of vessel = 294 J K-1.

On Mercury and the Moon, we notice that larger craters dwarf smaller craters.

On both Mercury and the Moon, the surfaces are covered with impact craters, which are formed when asteroids or comets collide with these bodies. While craters come in various sizes, we can observe that larger craters tend to dominate and overshadow smaller ones. This indicates that there have been significant impacts throughout the history of Mercury and the Moon, resulting in the formation of these larger craters.

The size difference between larger and smaller craters is particularly evident on Mercury, as it lacks an atmosphere to erode or weather the craters. Therefore, the larger craters on Mercury remain well-preserved and are easily distinguishable. On the Moon, although there is no atmosphere to the same extent as Earth's, some erosion and weathering processes occur due to micrometeorite impacts, the solar wind, and occasional volcanic activity. Nonetheless, the larger craters still retain their dominance over the smaller ones.

Understanding the relationship between the sizes of craters on Mercury and the Moon provides valuable insights into their geological history and the frequency and magnitude of impacts these bodies have experienced over time. The presence of larger craters suggests that more substantial objects have collided with these celestial bodies, potentially causing significant disturbances and shaping their surfaces.

Learn more about craters

brainly.com/question/31838267

#SPJ11

For a 50 kg person receives an absorbed dose of gamma radiation of 20 millirads,  the total energy absorbed is mathematically given as

E=0.1457J

Generally, the equation for the total energy absorbed  is mathematically given as

E=mass*gamma radiation

Therefore

E=50*20*19^{-3}

E=0.1457J

In conclusion,  the total energy absorbed

E=0.1457J

Read more about Energy

https://brainly.com/question/13439286

#SPJ1

Answer:

\(\theta_2 = 34.61^0\)

Explanation:

Path difference for the destructive interference of a single slit:

\(D sin \theta = n \lambda\)

For the first - order minimum, n = 1, and \(\theta = \theta_1\)

\(D sin \theta_1 = \lambda\).........(1)

For the second - order minimum, n = 2,  and \(\theta = \theta_2\)

\(D sin \theta_2 = 2 \lambda\).........(2)

Dividing equation (2) by equation (1):

\(\frac{D sin \theta_2}{Dsin \theta_1} = \frac{2 \lambda}{\lambda} \\\frac{ sin \theta_2}{sin \theta_1} = 2 \\\theta_1 = 16.5^0\\\frac{ sin \theta_2}{sin 16.5} = 2\\sin \theta_2 = 2 sin 16.5\\sin \theta_2 = 0.568\\\theta_2 = sin^{-1} 0.568\\\theta_2 = 34.61^0\)

Answer:

true

Explanation:

The apparent brightness of a star is how much energy is coming from the star per square meter per second, as measured on Earth. The further away the star is, the smaller the probability that a given photon emitted by the star will eventually hit Earth. Or said a quantitative form: all else being the same, the apparent brightness of a star is proportional the the inverse square of its distance.

Answer: A.

current (thumb) to magnetic field (fingers)

Answer:

A. current (thumb) to magnetic field (fingers)

Explanation:

According to the Right-Hand Thumb rule, if we are holding a current- carrying straight conductor in our right hand such that the thumb points toward the direction of current, then the fingers will wrap around the conductor in the direction of the field lines of the magnetic field.

Hope it helps.

If you have any query, feel free to ask.

The wavelength of red light in glass with an index of refraction of 1.37 is shorter than its wavelength in air. This phenomenon, known as wavelength reduction, occurs because light slows down and changes direction when it enters a medium with a higher refractive index.

When light travels from one medium to another, its speed and direction change due to the different refractive indices of the two materials. The refractive index (n) is a property of a material that determines how much light bends as it passes through it. In this case, red light with a wavelength of 807 nm is initially traveling through air, which has a refractive index of approximately 1. When the light enters glass with a refractive index of 1.37, its speed decreases, and it bends towards the normal (a line perpendicular to the surface of the glass). This bending of light causes a reduction in the wavelength of the light in the glass. According to Snell's law, the ratio of the sine of the angle of incidence to the sine of the angle of refraction is equal to the ratio of the refractive indices of the two media. As a result, the wavelength of the red light in the glass is shorter than in air, although the frequency remains the same. This phenomenon is responsible for the color distortion observed when light passes through a prism or a glass lens.

To learn more about The wavelength : brainly.com/question/7143261

#SPJ11

Without air resistance, both the basketball and the medicine ball will fall at the same rate and reach the ground at the same time. This is due to the fact that gravity affects objects the same, regardless of their mass.

When a ball is dropped from a height, the only force acting upon it is gravity. Gravity pulls each ball with the same force; however, the ball with more mass will have more gravitational potential energy than the other. It means the basketball will have more potential energy to convert to kinetic energy during the fall, making it faster than the medicine ball.

Thus, in conclusion, the basketball would fall first as it is more massive than the medicine ball.
When a basketball and a medicine ball are dropped from the same height at the same time without air resistance, the basketball would land first. The explanation for this is due to the size and weight of each ball.

Basketball is heavier than the medicine ball, and both have the same height to fall. The more massive the object, the more gravitational pull it experiences, and thus, it falls faster. So, the basketball would land first if a basketball and a medicine ball are dropped from the same height at the same time without air resistance.

Read more about mass here:

https://brainly.com/question/19385703

#SPJ11

The distance from the axis of the force applied is 2.05 m.

The distance from the axis of the force applied is calculated as follows;

The formula for torque;

τ = Fr

where;

Another formula for torque is given as;

τ = Iα

where;

τ = (mr²)α

τ = (25 kg x (0.925 m)²) x (1.84 rad/s²)

τ = 39.36 Nm

The distance is calculated as;

r = τ/F

r = ( 39.36 Nm ) / (19.2 N)

r = 2.05 m

Learn more about torque here: https://brainly.com/question/14839816

#SPJ1