A resistor of R1= 25.0 Ohmns is connected to a battery that has negligible internal resistance and electrical energy is dissipated by R1 at a rate of 36.0W. If a second resistor with R2 = 15.0 Ohmns is connected in series with R1, what is the total rate at which electrical energy is dissipated by the two resistors?

Answer:

225√3 N

Explanation:

225√3 N

Answer:

5v

Explanation:

W = 10J ;Q = 2C ;V = ?

So,potential between x and y is 5v

Hope it will help you if not so please sorry.

Between the value 400 nm and 700 nm there is an infinite amount of real values that can represent the length of a wavelength.

If we consider that each differente wavelength represents a different color, therefore there are infinite possible colors in the interval from 400 nm to 700 nm.

But if we consider only certain intervals of wavelength as certain colors, we can have for example 7 colors:

Violet, Indigo, Blue, Green, Yellow, Orange, Red.

Answer:

The constriction in the thermometer is to prevent the mercury from dropping back to the bulb when the reading is being taken. It is easier for us to take reading. It prevents the thermometric substance (Mercury or Alcohol) from running back into the bulb.

Explanation:

Hope it is helpful....

Answer:

constriction is made in a clinical thermometer because it prevents the thermometric liquid from running back into the bulb.

(b) There are 9 different possible combinations of quantum numbers for the two 2p electrons in carbon.

(c) There is only 1 different set of quantum numbers possible for the two electrons in carbon, taking into account the Pauli principle.

(b) The quantum numbers that describe an electron in an atom are the principal quantum number (n), azimuthal quantum number (l), magnetic quantum number (ml), and spin quantum number (ms). Ignoring the Pauli principle, each of the two 2p electrons in carbon can have its own set of quantum numbers.

For the 2p sublevel, the azimuthal quantum number (l) can have a value of 1, and the magnetic quantum number (ml) can have values of -1, 0, and 1. The principal quantum number (n) will be the same for both electrons since they are in the same sublevel.

Therefore, for each electron, there are 3 possible combinations of quantum numbers: (n, l, ml). For the two electrons, we can multiply these possibilities together: 3 * 3 = 9.

Thus, ignoring the Pauli principle, there are 9 different possible combinations of quantum numbers for the two 2p electrons in carbon.

(c) The Pauli exclusion principle states that no two electrons in an atom can have the same set of four quantum numbers. This means that for the two electrons in carbon, each combination of quantum numbers can only be used once.

Since there are 9 different possible combinations of quantum numbers obtained in part (b), applying the Pauli principle eliminates 9 - 1 = 8 of these combinations. This is because one combination will be the same as the other when the order of the electrons is switched.

Therefore, after applying the Pauli principle, only 1 out of the 9 possible combinations remains.

In summary, there is only 1 different set of quantum numbers possible for the two electrons in carbon, taking into account the Pauli principle.

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40cm³ is  volume of a metal block measures 10cm×2cm×2cm and 5 blocks have the same total volume.

volume=l×b×h

volume=10cm×2cm×2cm= 40cm³

volume=l×b×h

volume= 2cm×2cm×2cm=8cm³

blocks have the same total volume= 40cm³/8cm³= 5

The space occupied inside an object's borders in three dimensions is referred to as its volume. It is sometimes referred to as the object's capacity. Finding an object's volume can help us calculate the quantity needed to fill it, such as the volume of water needed to fill a bottle, aquarium, or water tank.

A sphere is the most basic and typical form of a three-dimensional shape. We see spheres on a regular basis in the form of balls, globes, ornamental lights, oranges, etc.

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Answer:

Inertia

Explanation:

Part of Newton's Laws of Motion

Distance = 2000m

Time = 35 minutes = 35×60 sec = 2100 sec

We know, Speed = Distance/Time

Therefore, Speed

= 2000m/2100s = 20/21 m/s

Answer: 20/21 m/s

Hope it helps! Please do comment

Answer:

The cannonball and the ball will both take the same amount of time before they hit the ground.

Explanation:

For a ball fired horizontally from a given height, there is only a vertical acceleration on it towards the ground. This acceleration is equal to the acceleration due to gravity (g = 9.81 m/s^2). A ball dropped from a height will also only experience the same vertical acceleration downwards which is also equal to g = 9.81 m/s^2.

Therefore both the cannonball and the ball will take the same amount of time to hit the ground if they are released/fired from the same height.

Answer:

THE CORRECT ANSWER IS OPTION ( c )Pulmonary aortic valve

Explanation:

Pulmonary aortic valve is not a component of systemic circuit.

Systemic circuit is a part of circulatory system that help to transport blood to different part of the body. It transport blood from the left ventricle to the capillaries and then other part of the body.

Therefore, Pulmonary aortic valve is not a component of systemic circuit.

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The buoyant force on the canoe is 600 N, which is equal to the weight of the canoe.

When an object is placed in a fluid, it experiences an upward force known as the buoyant force, which is equal to the weight of the fluid displaced by the object. In this case, the canoe is floating in a lake, which is a fluid, so it is experiencing an upward buoyant force.

Since the canoe is floating, the buoyant force must be equal to the weight of the canoe, otherwise it would sink or rise. Therefore, the buoyant force on the canoe is equal to its weight, which is given as 600 N.

The buoyant force on the canoe is 600 N, which is equal to its weight. This means that the canoe is in a state of equilibrium, with the buoyant force supporting its weight and preventing it from sinking.

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Answer:

(a) Kinetic energy stored in the spring = 1/2 * k * x^2 = 1/2 * 455 N/m * 11.5 cm^2 = 6,362.5 J

(b) Velocity of the ball = √(2*6,362.5 J / 0.756 kg) = 22.1 m/s

(c) Time till ball hits the deck = (85.5 cm – 11.5 cm) / 22.1 m/s = 3.5 s

(d) Horizontal distance = 22.1 m/s * 3.5 s = 77.4 cm

(e) Kinetic energy of the ball just before it hits the deck = 1/2 * 0.756 kg * 22.1 m/s^2 = 79.9 J

PLEASE GIVE BRAINLIEST FOR ANSWER. WORKED VERY HARD ON THIS

Answer:

A safest device

Explanation:

it's meant to operate safe and provide over current protection of an electrical circuit

A location near a body of water, such as a lake or ocean, will generally have a higher relative humidity.

This is because bodies of water evaporate, releasing water vapor into the surrounding air. The amount of water vapor that air can hold increases with temperature, so warm air near the water can hold more moisture than cooler air further inland. As the warm, moist air moves inland and cools, it reaches its dew point, causing the excess water vapor to condense into liquid droplets, forming fog or dew.

Additionally, locations with high levels of precipitation, such as rainforests or areas with frequent thunderstorms, can also have high relative humidity due to the amount of moisture in the air. The relative humidity can be measured using a device called a hygrometer, which compares the amount of moisture in the air to the maximum amount it could hold at that temperature. A relative humidity of 100% means the air is saturated with water vapor, while lower percentages indicate drier air.

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The magnitude of the vector Z = A - C + B is approximately 6.616 km.

To determine the magnitude of the vector Z = A - C + B, we need to add the vectors A, B, and the negation of vector C.

Given:

The magnitude of vector A = 2.40 km

The direction of vector A = 34.0° south of east

The magnitude of vector B = 6.90 km

The direction of vector B = 10.0° south of west

The magnitude of vector C = 3.80 km

The direction of vector C = 55.0° south of west

To add vectors, we need to break them down into their horizontal and vertical components.

For vector A:

A\(_{horizontal\) = A * cos(angle)

A\(_{vertical\) = A * sin(angle)

A\(_{horizontal\) = 2.40 km * cos(34.0°)

A\(_{horizontal\) = 2.40 km * 0.829

A\(_{horizontal\) = 1.9896 km

A\(_{vertical\) = 2.40 km * sin(34.0°)

A\(_{vertical\) = 2.40 km * 0.560

A\(_{vertical\) = 1.344 km

For vector B:

B\(_{horizontal\) = B * cos(angle)

B\(_{vertical\) = B * sin(angle)

B\(_{horizontal\) = 6.90 km * cos(10.0°)

B\(_{horizontal\) = 6.90 km * 0.984

B\(_{horizontal\) = 6.7816 km

B\(_{vertical\) = 6.90 km * sin(10.0°)

B\(_{vertical\) = 6.90 km * 0.174

B\(_{vertical\) = 1.2006 km

For vector C:

C\(_{horizontal\) = C * cos(angle)

C\(_{vertical\) = C * sin(angle)

C\(_{horizontal\) = 3.80 km * cos(55.0°)

C\(_{horizontal\) = 3.80 km * 0.574

C\(_{horizontal\) = 2.1832 km

C\(_{vertical\) = 3.80 km * sin(55.0°)

C\(_{vertical\) = 3.80 km * 0.819

C\(_{vertical\) = 3.1154 km

Now we can add the horizontal and vertical components:

Z\(_{horizontal\)  = A\(_{horizontal\) - C\(_{horizontal\) +B\(_{horizontal\)

Z\(_{vertical\) = A\(_{vertical\) - C\(_{vertical\) + B\(_{vertical\)

Z\(_{horizontal\) = 1.9896 km - 2.1832 km + 6.7816 km

Z\(_{horizontal\) = 6.588 km

Z\(_{vertical\) = 1.344 km - 3.1154 km + 1.2006 km

Z\(_{vertical\) = -0.5708 km

The magnitude of vector Z is given by the Pythagorean theorem:

|Z| = \(\sqrt{(Z_{horizontal}^2 + Z_{vertical}^2)\)

|Z| = \(\sqrt{((6.588 km)^2 + (-0.5708 km)^2)\)

|Z| = \(\sqrt{(43.391344 km^2 + 0.32614264 km^2)\)

|Z| = \(\sqrt{(43.71748664 km^2)\)

|Z| = 6.616 km (rounded to three significant figures)

Therefore, the magnitude of the vector Z = A - C + B is approximately 6.616 km.

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Answer:

Oxygen and hydrogen

Explanation:

Oxygen and hydrogen

Answer:

Amoeba (plural = amoebae) is a well known genus of unicellular organism, a protist. One of its most common species, the Amoeba Proteus, is about 0.2 to 0.3 mm large. The amoeba was first discovered by August Von Rosenhof in 1757.[1] It is a genus of protozoa that moves with false feet, called pseudopodia.

It's a single - called animal that catches good and moves around by extending fingerlike projections of protoplasm

Students watched a cartoon either alone or with others and then rated how funny they found the cartoon to be.

Independent Variable:  student alone or with others

Dependent Variable:   how funny student thought the cartoon was

Answer:

Independent Variable: Watching cartoon alone or with others

Dependent Variable: how funny they found the cartoon to be

Explanation:

A dependent variable is the variable being tested. The change in the value of dependent variable depends on the independent variable.

An independent variable is used to test the effects on dependent variable and its does not depend on any variable.

In the above example the dependent variable is how funny the cartoon was. This is being tested and it is tested by independent variable i.e. Students watching cartoon either alone or with others. So the cartoon is funny or not depends on watching cartoon alone or with friends.

Answer:

the answer is b.

plsss pa brainliest po ako

Answer:

a. Light bulb - electrical to light

b. Firework - chemical to light / thermal / sound

c. Flute - kinetic to sound

d. Leaf-  solar to chemical

Answer:

Acceleration is the name we give to any process where the velocity changes. Since velocity is a speed and a direction, there are only two ways for you to accelerate: change your speed or change your direction—or change both.

Answer:

Arsenic

Explanation:

Arsenic is in group 5 and period 4. Group numbers tell us the number of valence electron and period number tells us the number of shells in an element.

The energy of the n=2 state of the electron trapped in the quantum dot is 2.40 x 10^-16 Joules.

The n=2 state refers to the second energy level or orbital of the electron in the quantum dot. To find the energy of this state, we can use the formula for the energy levels of a particle in a one-dimensional box:

E_n = (n^2 * h^2) / (8 * m * L^2)

where E_n is the energy of the state, n is the quantum number (in this case, n=2), h is Planck's constant, m is the mass of the electron, and L is the length of the box.

Plugging in the given values, we have:

E_2 = (2^2 * h^2) / (8 * m * L^2)

Now, we need to find the values of Planck's constant (h), the mass of the electron (m), and the length of the box (L).

Planck's constant, h, is a fundamental constant in physics with a value of approximately 6.626 x 10^-34 J·s.

The mass of the electron, m, is approximately 9.11 x 10^-31 kg.

The length of the box, L, is given as 1.00 nm, which is equivalent to 1.00 x 10^-9 m.

Plugging in these values, we can calculate the energy:

E_2 = (2^2 * (6.626 x 10^-34 J·s)^2) / (8 * (9.11 x 10^-31 kg) * (1.00 x 10^-9 m)^2)

Simplifying the expression:

E_2 = (4 * (6.626 x 10^-34 J·s)^2) / (8 * (9.11 x 10^-31 kg) * (1.00 x 10^-9 m)^2)

E_2 = (4 * (6.626 x 10^-34 J·s)^2) / (72.88 x 10^-50 kg·m^2)

E_2 = (4 * (6.626 x 10^-34 J·s)^2) / (72.88 x 10^-50 J·s^2)

E_2 = (4 * (6.626^2) x 10^-34 J·s) / (72.88 x 10^-50 J·s^2)

E_2 = (4 * (43.77) x 10^-34 J·s) / (72.88 x 10^-50 J·s^2)

E_2 = (175.08 x 10^-34 J·s) / (72.88 x 10^-50 J·s^2)

E_2 = 2.40 x 10^-16 J

Therefore, the energy of the n=2 state of the electron trapped in the quantum dot is 2.40 x 10^-16 Joules.

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Answer:

Asteroid y

Explanation:

The temperature would gradually increase after it is turned on. The rate of increase would depend on the power of the heater and the size of the room. Once the desired temperature is reached, the heater would automatically turn off to maintain the temperature.

If a propane heater is used instead of a furnace to heat a room that starts at 20 degrees Celsius, the temperature of the room would depend on various factors such as the size of the room, the insulation, and the power of the heater. Generally, a propane heater would provide heat more quickly than a furnace as it heats up faster. However, it also tends to heat up the immediate area around it more quickly, resulting in uneven heating in the room.

Assuming the propane heater is powerful enough to heat the entire room evenly, the temperature would gradually increase after it is turned on. The rate of increase would depend on the power of the heater and the size of the room. Once the desired temperature is reached, the heater would automatically turn off to maintain the temperature.

If the person who turned on the propane heater leaves the room, the temperature would continue to rise until it reaches the desired temperature. However, if the room is poorly insulated or there are drafts, the temperature may not reach the desired level or it may fluctuate. It is important to monitor the temperature regularly and adjust the heater as needed to maintain a comfortable and safe temperature.

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Answer:

i think try theanswer

Explanation:

proper

Answer:

A

Explanation:

For an object to move with constant speed the forward force is opposed by the effects of forces. There is no resultant force acting or constant speed is a result of no resultant force.

Newton's second law states that an object with no net forces acting on it which is initially at rest will remain at rest. If it is moving, it will continue to move in a straight line with constant velocity. Newton's Second Law states: F = ma. F is the net force acting on an object.

Also if velocity or speed is constant the acceleration will be 0 the F=m×0

F=0.

ANSWER:

polarized

STEP-BY-STEP EXPLANATION:

When negative charges are concentrated at one end of an object that is made of a conductive material, this happens when the object is polarized.

The power cube transformer for a portable CD player has an output of 4.6V and 600mA when plugged into a 120V/60Hz outlet.

Also, the primary coil has 1250 turns of wire, and we are to find out how many turns are on the secondary coil and the peak current in the primary coil.

Number of turns on the secondary coil:

The voltage ratio is equal to the turn ratio.

Therefore, the voltage ratio (Vp / Vs) is equal to the turns ratio (Np / Ns).

The primary voltage Vp is equal to 120V.

The secondary voltage Vs is equal to 4.6V.

Vp / Vs = Np / Ns

1250 / Ns = 120V / 4.6V

1250 / Ns = 26.09

Ns = 1250 / 26.09

Ns ≈ 47 turns

Peak current in the primary coil:

The peak voltage of the transformer is:

Vp = 120V

The peak voltage of the primary coil is 120V.

The peak current can be calculated by using the RMS current and the turns ratio.

Ip = Is x (Np / Ns)

Ip = 0.6A x (1250 / 47)

Ip = 15.8A

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When you change the thickness of the wire in a circuit, option B. the resistance (R) and current (I) will also change, but the voltage (V) will remain constant.

The resistance of a wire is directly proportional to its length and inversely proportional to its cross-sectional area (thickness). As the thickness of the wire changes, the cross-sectional area changes, which in turn affects the resistance. Thicker wires have a larger cross-sectional area, resulting in lower resistance, while thinner wires have a smaller cross-sectional area, resulting in higher resistance. Therefore, changing the thickness of the wire will cause a change in resistance.

According to Ohm's Law (V = IR), the voltage (V) in a circuit is equal to the product of the current (I) and the resistance (R). If the voltage is kept constant, and the resistance changes due to the thickness of the wire, the current will also change to maintain the relationship defined by Ohm's Law. When the resistance increases, the current decreases, and vice versa.

However, it's important to note that changing the thickness of the wire will not directly affect the voltage. The voltage in a circuit is determined by the power source or the potential difference applied across the circuit and is independent of the wire thickness. As long as the voltage source remains constant, the voltage across the circuit will remain constant regardless of the wire thickness. Therefore, the correct answer is option B.

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Answer: hope this helps

Explanation:a 45kg box is being pulled directly to the right from your point of view by a rope. the person is pulling the box via a rope with a force of 25n. while the person is pulling the box, it is displaced 7.5 meters in the direction it is being pulled. calculate the work done by the force of tension on the rope.