Angle m has a measure between 0° and 360° and is coterminal with a â€""620° angle. what is the measure of angle m? 100° 110° 120° 130°

The energy needed to heat the water and the copper tank to 55°C is 25,083,080 J.

Q = mCΔT

m = 150 kg (mass of water)

C = 4.18 J/g°C (specific heat capacity of water)

ΔT = 55°C - 15°C = 40°C (change in temperature)

Using the formula, we get:

\(Q_{water}\) = mCΔT

\(Q_{water}\) = (150 kg) x (4.18 J/g°C) x (40°C)

\(Q_{water}\) = 25,080,000 J

m = 20 kg (mass of tank)

C = 0.385 J/g°C (specific heat capacity of copper)

ΔT = 55°C - 15°C = 40°C (change in temperature)

Using the formula, we get:

\(Q_{tank}\) = mCΔT

\(Q_{tank}\) = (20 kg) x (0.385 J/g°C) x (40°C)

\(Q_{tank}\)= 3080 J

Finally, we can add the two energies together to get the total energy needed:

\(Q_{total}\) = \(Q_{water}\) \(+\) \(Q_{tank}\)

\(Q_{total}\) \(= 25,080,000 J + 3080 J\)

\(Q_{total}\) \(= 25,083,080 J\)

Energy is a fundamental concept that refers to the ability of a physical system to do work or cause a change. It is a scalar quantity that is measured in units of joules (J) in the International System of Units (SI). According to the law of conservation of energy, energy cannot be created or destroyed, but it can be transformed from one form to another. This means that the total amount of energy in a closed system remains constant.

Energy is a crucial concept in many areas of physics, including mechanics, thermodynamics, and electromagnetism. Understanding energy is essential for understanding how the physical world works, and it has numerous applications in technology and everyday life, from powering our homes and vehicles to the production of food and the functioning of our bodies.

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The weight of object with a mass of 8 kg is 78.4 N.

The weight of object with a mass of 0.04 kg is 0.392 N.

The weight of object with a mass of 760 mg is 7.45 N.

The weight of an object is the force acting on the object due to gravity.

Weight, W = mg

where;

W = mg

W = 8 kg x 9.8 m/s²

W = 78.4 N

W = mg

W = 0.04 kg x 9.8 m/s²

W = 0.392 N

W = mg

W = 0.76 kg x 9.8 m/s²

W = 7.45 N

Thus, the weight of object with a mass of 8 kg is 78.4 N.

The weight of object with a mass of 0.04 kg is 0.392 N.

The weight of object with a mass of 760 mg is 7.45 N.

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A branch circuit is the conductors between the final overcurrent device and the outlets, providing power to lights and outlets in a building and are typically rated for 15 or 20 amps.

A branch circuit is defined as the circuit conductors between the final overcurrent device protecting the circuit and the outlet(s). Branch circuits provide power to lights and outlets in a building and are typically rated for 15 or 20 amps. The final overcurrent device, such as a circuit breaker or fuse, is used to protect the branch circuit from overloads and short circuits. The National Electric Code (NEC) provides guidelines for the safe installation of branch circuits, including rules for conductor sizing, overcurrent protection, and grounding. Properly installed and maintained branch circuits are essential for ensuring the safe operation of electrical systems in a building.

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Answer:

fortnite

Explanation: it is fortnite

Answer:

speed of the toy truck

Explanation:

Answer:

Electromagnetic waves are the only ones that do not need a medium to travel through.

Explanation:

Answer: The answer to this question is D

Answer:

d

Explanation:

Answer:

D

Explanation:

Gravitaional potential energy is energy that is stored by moving an object to a greater height above the ground.

im not sure if its right, but i tried :)

Drinking Water Equivalent Level (DWEL) is defined as the maximum permissible amount of a contaminant in drinking water, which may be safely ingested by an adult person during a day (assuming a bodyweight of 70 kg) over an extended period of time without any adverse effect on health.

The correct units for a Drinking Water Equivalent Level (DWEL) are mg/L (milligrams per liter). Therefore, the correct answer is option (e) mg/L.What is Drinking Water Equivalent Level? Drinking Water Equivalent Level (DWEL) is defined as the maximum permissible amount of a contaminant in drinking water, which may be safely ingested by an adult person during a day (assuming a bodyweight of 70 kg) over an extended period of time without any adverse effect on health.

The DWEL of a contaminant is generally estimated based on its reference dose (RfD) and the amount of water consumed by an individual in a day (assumed to be 2 L/day).Reference dose (RfD) is defined as the daily oral exposure (mg/kg/day) to a chemical that is assumed to be without appreciable risk of deleterious effects over a lifetime. RfD values are derived from the lowest observed effect levels in animal studies and uncertainty factors are used to account for the differences in sensitivity between animal species and humans, and to address any gaps in the available data regarding the toxicity of the substance.

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Answer:

Equation : Density = mass / volume

= 2.6 / 7.13

= 0.3646563815

Explanation:

Answer:

W = 34.775J

Explanation:

W = F × d

W = 53.5N × 0.65m

W = 34.775J

W = work = unknown

f = force = 53.5N

d = distance = 0.65m

A perfectly inelastic demand curve graphs as a line parallel to the vertical axis.

A perfectly inelastic demand curve is a type of demand curve where the quantity demanded remains constant regardless of changes in price. In other words, the demand is completely unresponsive to price changes. When graphed, a perfectly inelastic demand curve appears as a vertical line parallel to the vertical axis.

This means that no matter how much the price of a product or service changes, the quantity demanded by consumers remains the same. The price elasticity of demand coefficient for a perfectly inelastic demand curve is zero because there is no change in quantity demanded relative to price changes.

A perfectly inelastic demand curve is often seen in the case of essential goods or products with no close substitutes, where consumers are willing to pay any price to obtain the item. Examples may include life-saving medications or specific medical treatments.

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Answer: 0-3 minutes

Explanation:

On the side of the graph, it shows you the distance the car was moving. As you know, MPH (miles per hour) shows how fast an object is moving, meaning that the car was going around 0-1 mph around minutes 0-3. Just make sure you know how to read a graph and this will become an easy question for you :)

Answer:

5-8 minutes the car isn't traveling. The g above is wrong

Explanation:

The sliding friction exerted on the body is 64N.

The velocity of the body after a distance of 4m from point A is 11.5 m/s.

The sliding friction exerted on the body is determined as follows:

F - f = ma

where;

At point A, u = 10m/s and F=80N

80 - f = 4a

To find, we use the formula below:

v² = u² + 2as

where;

Substituting the value:

12² = 10² + 2 * 2a

a = 4m/s²

Then solving for f

80 - f = 4 * 4

f = 64N

The velocity of the body after a distance of s₂ = 4m from point A is calculated as follows:

v² = u² + 2as

substituting the values

v² = 10² + 2 * 4 * 4

v² = 132

v = 11.5 m/s

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Answer:

Fn = m g cos 30 = .15 * 9.81 * .866 = 1.27 N    force of plane on car

Fp = m g sin 30 = .15 * 9.81 * 1/2 = .736 N    force along plane

m g h = W = potential energy of car = original mechanical energy

1/2 m v^2 = m g h    equating PE and KE

v^2 = 2 g h = 2 * 9.81 * .8

v = 3.96 m/s    original speed of blue cart

Launch energy of red cart

1/2 m v^2 = .15 / 2 * 16 = 1.2 J      launch energy of red cart

m g h = .15 * 9.81 * .55 = .81 J       potential energy of red cart

Wf = (1.2 -.81) J = .39 J        work done against friction

Answer:

gogo

Explanation:

The speed of your friend during the circular distance is 2 times greater than your speed.

The distance you travelled and the distance travelled by your friend during one rotation is calculated as follows;

your circular distance = 2πr

where;

your distance = 2π(4 m) = 8π m

your friend's circular distance = 2πd

where;

your friends distance = 2π(8 m) = 16π m

The speed of each person at equal time is calculated as;

v = distance / time

your speed = 8π/t

your friend's speed = 16π/t = 2(8π/t)

Thus, your friend's speed = 2 times your speed.

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When a plane is flying straight and level, the lift force generated by the wings is equal and opposite to the weight force of the plane, resulting in a net vertical force of zero.

If the plane were to start flying diagonally down in a straight line, the vertical forces acting on the plane would change.

Since the angle of attack (the angle between the wing and the incoming airflow) would be decreasing as the plane descended, the lift force produced by the wings would also be decreasing.

The plane's weight force would also remain constant during this time.

As a result, the net vertical force would no longer be zero but rather would be directed downward, accelerating the plane.

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Connecting the cells in parallel would result in the same voltage but double the current, providing longer battery life and brighter light output from the LED.

This would be beneficial for situations where a brighter light is needed for a longer period of time.

Connecting the cells in series, on the other hand, would result in double the voltage but the same current, which could be useful for situations where a higher voltage is required to power the LED, such as in a more powerful flashlight or when using additional LEDs in the circuit.

Ultimately, the choice between parallel and series connections depends on the specific needs of the flashlight's design and usage.

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\(B_{max\) for the light at a distance of 6.80 mm from the source is \(1.45 \times 10^{-4} T\).

Distance is a numerical measurement of how far apart two objects or points are in space. It is a scalar quantity, which means it is only concerned with magnitude and not direction. It is typically measured in units of length such as feet, miles, meters, kilometers, or even light-years. Distance can be used to measure the length of a journey, the size of an object, or the time it takes to travel from one location to another. It can also be used to calculate speed, acceleration, or force.

\(B_{max} = P/(4\pi d^2c)\)
Where P is the power output of the light source (59.0 WW), d is the distance from the source (6.80 mm), and c is the speed of light (299,792,458 m/s).
\(B_{max} = (59.0 WW)/(4\pi(6.80 mm)^2(299,792,458 m/s))\\B_{max} = 1.45 \times 10^{-4} T.\)

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Option D from the following is the solution concentration expressed in terms of mortality because it represents the number of moles dissolved in a liter of the solution.

A chemical compound is a combination of two or more either similar or dissimilar chemical elements.

The molarity of a solution is expressed in terms of the number of moles dissolved per liter of the solution.

The number of moles dissolved in a liter of the solution, represented by option D from the following, is the solution concentration stated in terms of mortality.

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Answer:

Hertz is the answer for this question

ANSWER:

39.21 km

STEP-BY-STEP EXPLANATION:

To determine the answer we track each move just like this:

Coordinates at the start (city A): (0, 0)

Coordinates after going 30 km north: (0, 30)

Coordinates after going 50 km west: (-50, 30)

Southeast is a move down and to the right of 45°, so we calculate at each coordinate, like this:

We calculate the distance between both points as follows:

The distance between both cities is 39.21 km

All of the above are correct. The average salinity of seawater can be expressed as 3.5 percent, 35 parts per thousand, or 35,000 parts per million.

The average salinity of seawater can be expressed using different units, and all of the options provided are correct.

3.5 percent: Salinity can be expressed as a percentage, where 3.5 percent represents the amount of dissolved salts in seawater. This means that for every 100 units of seawater, 3.5 units are salts.

35 parts per thousand: Salinity can also be expressed as parts per thousand (ppt). In this case, 35 parts per thousand mean that for every 1,000 units of seawater, there are 35 units of dissolved salts.

35 grams per kilogram: Another way to express salinity is in terms of grams of salts per kilogram of seawater. So, 35 grams per kilogram indicates that there are 35 grams of dissolved salts in every kilogram of seawater.

35,000 parts per million: Salinity can also be measured in parts per million (ppm). This means that for every 1 million units of seawater, there are 35,000 units of dissolved salts.

All of these expressions represent different ways to quantify the salinity of seawater, and they are all correct.

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Answer:

current decrease to half

The current in a circuit if a 100 resistor is removed and replaced by a 200 resistor current decrease to half.

A resistor is a passive two-terminal electrical component used in circuits to implement electrical resistance. Resistor use in electronic circuits includes lowering current flow, adjusting signal levels, dividing voltages, biasing active devices, and terminating transmission lines.

When potential is constant than current is inversely  proportional to resistance if we increase the resistance current will be half.

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Answer:

Stars create new elements in their cores bu squeezing elements together in a process called unclear fusion. First stars fuse hydrogen atoms into heluim. Helium atorm then fuse to create berylluim and so on until fusion in the star’s core has created every element up to icon.

Answer:

The mass of the apple is 0.49kg

Explanation:

Potential energy=mgh

P=mgh

6=m×1.22×10

6=12.2m

divide both sides by 12.2

m=6/12.2

m=0.49kg

A 1,289-kg cannon fires a 113 kg cannonball at 449 m/s. The recoil speed of the cannon is 39.3 m/s

The recoil speed of the cannon is calculated as follows:

Initial momentum of the system = final momentum of the system

Initial momentum before firing the cannonball = 0

Final momentum after firing the cannonball = (mass of cannonball × velocity of cannonball) + (mass of cannon × recoil velocity of cannon)

Therefore, (0) = (113 kg × 449 m/s) + (1,289 kg × recoil velocity of the cannon)

Recoil velocity of the cannon = - (113 kg × 449 m/s) / (1,289 kg)= - 39.3 m/s

Therefore, the recoil speed of the cannon is 39.3 m/s (negative because it is moving in the opposite direction of the cannonball).

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The largest voltage the battery can have without breaking the circuit at the supports is 626.71 V.

The magnetic field on a current-carrying conductor is determined by the flow of current through the conductor and the distance from the carrier.

Voltage is the pressure exerted by an electrical circuit’s power source through a conducting loop to push charged electrons (“current”) through an electrical circuit to perform a function, such as turning on a light.

Given,

The length of the metal bar = 54.0 cm or 0.54 m

mass of the bar = 740 g or 0.74 kg

magnetic field acting perpendicular to the bar = 0.450 T

resistance  = 26.0

Let the maximum potential in the battery be V and the current in the circuit be I. So

V= IR

V = 26×I

I = V/21

For the rod to be in its position the magnetic force on the rod must be equal to the weight. So

magnetic force = weight

B×I×L = mg

0.45 × V/21 × 0.54 m =  0.74 × 9.8

V = 626.71 V

Thus the largest voltage the battery can have without breaking the circuit at the supports is 626.71 V.

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Answer:

Length of Orbit

Explanation:

The surface temperatures decreases with increasing distance from the sun. Venus is an exception because its dense atmosphere acts as a greenhouse and heats the surface to above the melting point of lead, about 880 degrees Fahrenheit (471 degrees Celsius).

Hopefully this helps!

Answer:

chargeing by induction

Explanation:

this is the answer have a great day