how much energy must be absorbed by water with a mass of 0.5kg in order to raise the tempature from 30c to 65c

Saturn is a planet in solar system. It's ring is made out of small covered ice particle. It has over 30 moons.

Answer:

I am going to make an educated guess and say... B. 3 m/s²

Explanation:

I'm pretty certain that this is the correct answer.

For me, it was a toss-up between B and C, but I don't really think it's C.

But, then again, I am not 100% sure.

I hope you get it right! Have a blessed day! (✿◠‿◠)

The generator can supply power to the 1500W electrical heater for approximately 22.4 hours with 5 gallons of gas.

1. Gasoline contains approximately 33.6 kWh of energy per gallon. So, for 5 gallons, the total energy content is:
5 gallons * 33.6 kWh/gallon = 168 kWh
2. Considering the generator is 20% efficient, the usable energy will be:
168 kWh * 0.20 = 33.6 kWh
3. Now, we can calculate how long the 1500W heater can be powered using the 33.6 kWh of usable energy:
33,600 Wh (since 1 kWh = 1,000 Wh) / 1500 W = 22.4 hours

Hence, the generator can supply power to the 1500W electrical heater for approximately 22.4 hours with 5 gallons of gas.

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Projectile motion is  a motion where an object moves in a bilaterally symmetrical path

Projectile motion is a form of motion experienced by an object or particle that is projected near Earth's surface and moves along a curved path under the action of gravity only.

If an object is thrown up by making a certain angle with respect to  ground ( let say theta) up in the sky , it will reach a maximum height after which it follows a symmetrical path as it comes down due to  the action of gravity . The path followed from the beginning till end will be a parabolic in this case .

It is a motion where an object moves in a bilaterally symmetrical path .

Projectile motion only occurs when there is only one force applied at the beginning of the trajectory, after been released object comes in the action of gravity .

General form of equation of trajectory  of Projectile motion   can be written as :

y = x tan(theta ) - g(x^2)/(2(u^2)cos^2(theta))

where y = horizontal component

           x = vertical component

           g = gravity

           u = initial velocity

           theta = angle of inclination of the initial velocity from horizontal axis

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We will have that the picture that shows the highest average kinetic energy is image B.

The force exerted by one plate for two parallel plates arrangement is F = QE/2.

The force exerted by one plate for two parallel plates arrangement is given as follows;

F = QE/2

where;

Thus, the force exerted by one plate for two parallel plates arrangement is F = QE/2.

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Answer:

The mass of a single paper  is approximately 0.047 lb/paper which in SI Units is approximately 21.77  g/paper

Explanation:

The given information on the size and the weight of paper are;

The mass of a box of 500 sheets of paper = 24 lb

The number of sheets in the paper = 500 sheets

The dimensions of the paper = 17 in. × 22 in., which is equivalent to  43.18 cm × 55.88 cm

The mass of a single paper = The mass of the box of paper/(The number of sheets of paper present in the box)

The mass of a single paper = 24 lb/500 = 0.047 lb/paper

Given that 1 lb = 453.6 g, we have;

0.047 lb/paper = 0.047 lb/paper×453.6 g/(lb) = 21.77  g/paper

The mass of a single paper  = 0.047 lb/paper = 21.77  g/paper.

Answer:

5.349g

Explanation:

The other post forgot about the differing answer. They wanted the answer for 21.59cm*27.94cm. when they get that 0.047=43.18cm*55.88cm we can set a ratio;

0.047/43.18*55.88=X/21.59*27.94=0.01179

then we do the same;

0.01179lb(453.6g/1lb)=5.349

(*the number is bigger but we have 4 sig figs*)

another answer for acellus is 143 m/s it worked for me

The speed of the charge is approximately 2.857 m/s.

To find the speed of the charge, we can use the formula for the magnetic force on a charged particle moving through a magnetic field:

Force (F) = q * v * B * sin(θ)

Where:

F is the force on the charge (given as 2.14 x \(10^-8\)  N),

q is the charge of the particle (given as 2.99  x \(10^-6\)C),

v is the speed of the charge (what we want to find),

B is the magnitude of the magnetic field (given as 5.00 x \(10^-5\) T),

θ is the angle between the direction of motion and the magnetic field (given as 10.0°).

First, we need to convert the angle from degrees to radians:

θ (in radians) = 10.0° * (π / 180°) ≈ 0.174532925 radians

Now, we can rearrange the formula to solve for the speed (v):

v = F / (q * B * sin(θ))

Substitute the given values into the equation:

v = 2.14 x \(10^-8\) N / (2.99 x \(10^-6\) C * 5.00  x \(10^-5\)  T * sin(0.174532925))

v ≈ 2.857143 m/s

Therefore, the speed of the charge is approximately 2.857 m/s.

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The three particles, with different charges and the same mass and horizontal velocity, enter a region of constant magnetic field. The paths of the particles are shown in Figure 1.

In the given scenario, the path of a charged particle in a magnetic field is determined by the Lorentz force, which is given by the equation F = qvB, where F is the force experienced by the particle, q is its charge, v is its velocity, and B is the magnetic field.

Analyzing the paths of the particles, we can observe the following:

Particle with charge q: The particle follows a curved path with a certain radius determined by the Lorentz force acting on it. The direction of the curvature depends on the sign of the charge and the direction of the magnetic field.

Particle with charge -2q: Since the charge is negative, the particle experiences a force in the opposite direction compared to the particle with charge q. As a result, the particle follows a curved path in the opposite direction.

Neutral particle: A neutral particle has zero net charge and, therefore, does not experience any force in a magnetic field. It continues to move in a straight line with its initial velocity, unaffected by the magnetic field.

In summary, the charged particles with charges q and -2q follow curved paths in opposite directions due to the Lorentz force, while the neutral particle continues to move in a straight line without any deflection in the magnetic field.

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To most efficiently solve this problem, you should divide the rod into pieces of charge that consist of Thin slices of the rod cut perpendicular to the axes of the rod. Option C.

The electric potential is a magnitud used to obtain a measure of the electric field that a charge located at a point A can acquire.

The electric potential, V, of the electric field created by a point charge Q is obtained by means of the following expression,

V = k (Q/R)

Where

The electric potential can be created by one or many punctual charges.

If it is caused by many punctual charges in the electric field, the total electric potential, Vt, results from the addition of the electric potentials, Vn, at that point created by each of the charges separately.

Vt = V1 + V2 + V3 + .... + Vn

In the exposed example, there is a lineal distribution of charges along the rod.

So there is a rod of length L. This rod has a possitive charge Q distributed along its length.

There is an A point placed at a distance D from one of the rod extremes.

We need to find the way to calculate the Electric potential, V.

Vt = ∫ K dQ/R

where dQ is a charge differential = λ dL

So we need to place a charge differential, dQ, at any place along the rod. Then R will be the distance from the dQ to the point A.

The total V is the addition of many puntual V.

The best way to calculate it is option C. Thin slices of the rod cut perpendicular to the axes of the rod.

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theanswer is b.heart disease

Answer:

having or representing the sun as the centre, as in the accepted astronomical model of the solar system.

Explanation:

Heliocentrism is the astronomical model in which the Earth and planets revolve around the Sun at the center of the Universe. Historically, heliocentrism was opposed to geocentrism, which placed the Earth at the center.

Objects the size of the one that exploded over Chelyabinsk (Russia), causing significant damage and injuries to more than 1,000 people, probably hit earth at least once every few decades.

However, it is important to note that this is just an estimate and the frequency of such events can vary.

The Chelyabinsk meteor, which exploded in the Earth's atmosphere on February 15, 2013, was estimated to be about 20 meters (66 feet) in size. Such events, where a meteor of that size enters the Earth's atmosphere and explodes, are relatively rare and can have significant localized effects.

Smaller meteors burn up in the atmosphere and often go unnoticed, while larger ones can cause more substantial damage if they reach the ground. Events like the Chelyabinsk meteor serve as a reminder of the potential hazards posed by space debris and the importance of monitoring and tracking near-Earth objects.

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Answer:

what is the average speed of the toy car during the two trials to the nearest tenth of m/s

wait nvm the answer is B

Explanation:

CARRY ON LEARNING

Answer:

1.0 s

Explanation:

How fast the projectile is traveling HORIZONTALLY has no effect on how long it takes to hit the ground......only the initial height (5 m) and gravity (-9.81 m/s^2) will affect how long it takes to do so...

df = final position = 0 when it hits the ground

df = do + vot + 1/2 a t^2

0   = 5 + 0 t   - 1/2 (9.81) t^2

5 = 1/2 (9.81) t^2

t = 1.0 s

Answer: -8.66 m/s2 (down)

Explanation:

Find the mass of the boulder:

F = ma

m=F/a = -3125N/9.8 m/s2 = 325 kg

F net = -3125 N + 370 N = -2815 N

now you can find a:

a = F/m = -2185 N / 325 kg = -8.66 m/s2

Answer:firt answer corrcect who answerd

Explanation:

Feather, Biscuit, a 1st grader, Elephant is order of  LEAST inertia to MOST inertia.

Inertia is the resistance of an object to any change in motion. Inertia is proportional the mass of the object: in fact, as we experience in common situations, the larger the mass of an object, the more difficult it is to change its motion.

Inertia of an object is its inherited property. It is the measure of its mass. It is clear that the inertia of an object depends directly on its mass. Mass of an object is the amount of matter contained in it. It is same at every location.

Given that in the case four thing Biscuit, Feather, Elephant, a 1st grader out of which Feather, Biscuit, a 1st grader, Elephant is order of  LEAST inertia to MOST inertia.

Feather, Biscuit, a 1st grader, Elephant is order of  LEAST inertia to MOST inertia.

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By providing a safe path for the lightning current, the lightning protection system can help protect the vessel and its occupants from the potentially devastating effects of a lightning strike.

The wooden mast of a sailboat or a ship can act as a natural lightning conductor, and if struck by lightning, it can potentially cause significant damage to the vessel and harm the people onboard. To prevent this, a lightning protection system is usually installed on the mast.

The lightning protection system typically consists of an air terminal, also known as a lightning rod, installed on the top of the mast. The air terminal is designed to attract the lightning strike and provide a path for the lightning current to travel to the ground safely.

To ensure that the lightning current is directed away from the wooden mast and into the water or ground, two down conductors are installed on either side of the mast, running its entire length.

These down conductors are typically made of a highly conductive material such as copper and are connected to the air terminal at the top of the mast and to a grounding plate or a grounding rod installed in the water or on the shore.

The down conductors provide a low-resistance path for the lightning current to travel safely to the ground, minimizing the risk of damage to the vessel or injury to the people onboard.

By providing a safe path for the lightning current, the lightning protection system can help protect the vessel and its occupants from the potentially devastating effects of a lightning strike.

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The correct tight asymptotic bound for T(n) in 1, 2, 3 where T(1)=c is Θ(n log n).

To find the tight asymptotic bound of T(n), we will use the Master Theorem. So, let's take a look at each recurrence relation:

1. T(n) = 10T(n/10)+100nApplying the Master Theorem: a = 10, b = 10, f(n) = 100nlogb a = log10 10 = 1 Since f(n) = Θ(n) = Θ(n1), Case 2 of the Master Theorem applies. The solution, therefore, is Θ(n log n).

2. T(n) = T(n/10)+100n Here, a = 1, b = 10, f(n) = 100nlogb a = log10 1 = 0 Since f(n) = Θ(n0) = Θ(1), Case 1 of the Master Theorem applies. The solution, therefore, is Θ(n).

3. T(n) = T(n/10)+100 Here, a = 1, b = 10, f(n) = 100logb a = log10 1 = 0 Since f(n) = Θ(1) = Θ(n0), Case 2 of the Master Theorem applies. The solution, therefore, is Θ(log n).Therefore, the correct tight asymptotic bound for T(n) in 1, 2, 3 where T(1)=c is Θ(n log n).

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Let's use the Master Theorem to find the asymptotic tight bound for each of the three recurrence relations given in the problem statement.

1. T(n) = 10T(n/10) + 100n Here, a = 10, b = 10, and f(n) = 100n. We can calculate the value of logb a as follows: log10 10 = 1 Since f(n) = Θ(n1), we can apply Case 2 of the Master Theorem and get: T(n) = Θ(n log n)Therefore, the correct tight asymptotic bound for T(n) in the first case is Θ(n log n).

2. T(n) = T(n/10) + 100n Here, a = 1, b = 10, and f(n) = 100n. We can calculate the value of logb a as follows: log10 1 = 0 Since f(n) = Θ(n1), we can apply Case 1 of the Master Theorem and get: T(n) = Θ(n)Therefore, the correct tight asymptotic bound for T(n) in the second case is Θ(n).

3. T(n) = T(n/10) + 100 Here, a = 1, b = 10, and f(n) = 100. We can calculate the value of logb a as follows: log10 1 = 0 Since f(n) = Θ(1), we can apply Case 2 of the Master Theorem and get: T(n) = Θ(log n) Therefore, the correct tight asymptotic bound for T(n) in the third case is Θ(log n). Hence, the three asymptotic tight bounds for T(n) are Θ(n log n), Θ(n), and Θ(log n), respectively.

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The magnitude of the average velocity of the train is 0.426 m/s.

Average velocity can be defined as the ratio of the total dfistance covered by a body to the total time.

To calculate the average velocity of the of the train, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the magnitude of the average velocity of the train is 0.426 m/s.

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Answer:

it's a

Explanation:

Answer:

I believe its D!

Explanation:

Kenetic energy is motion

Answer:the answer is letter D

Explanation:

Any object or agent (biological, chemical, radiological, and/or physical) that has the potential to harm people, animals, or the environment is considered a hazardous material.

This may be the result of the material's own properties or its interactions with other substances. The U.S. Environmental Protection Agency (EPA), the U.S. Occupational Safety and Health Administration (OSHA), the U.S. Department of Transportation (DOT), and the U.S.

Nuclear Regulatory Commission are primarily responsible for defining and enforcing laws and regulations related to hazardous materials (NRC). Each defines "hazardous substance" differently.

This includes chemicals such as carcinogens, irritants, corrosives, toxic agents, sensitizers, agents that damage the lungs, skin, eyes, or mucous membranes; chemicals that can combust, explode, are flammable, oxidizers, pyrophorics, unstable-reactive or water-reactive.

Therefore, Any object or agent (biological, chemical, radiological, and/or physical) that has the potential to harm people, animals, or the environment is considered a hazardous material.

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Explanation:

300 second = 5 minutes

details

500 watts = 500 joules per second

Time = (1.50 x 10^5 joules)/(5 x 10^2 joules per second) = .3 x 10^3 seconds =300 second

Answer:

7.39ev

Explanation:

Energy levels are found inside the atom. Electrons occupy these energy levels depending on the energy they possess. Electrons can move from one energy level to another due to absorption or emission of a photon or other factors. As the electron, jumps from a higher energy level to a lower energy level emitting a photon of measurable frequency, the photon carries energy equal to the amount of energy between the gap of the levels. This idea was first proposed by Neils Bohr and became the forerunner of the wave mechanical model of the atom.

Hence the energy of a photon is the energy of the gap between the two energy levels. Since Ea= 2.48ev and Eg= 10.38 ev.

If an electron jumps from Ea to Eg, the energy of the photon absorbed is given by;

E=Eg-Ea

E= 10.38ev - 2.48ev

E= 7.39ev

Answer:

The magnitude of the hiker’s resultant displacement is 5.6 km

The direction of the hiker’s resultant displacement is 77 degrees south west! Hope this helps!!!