Each student will pour 10 grams of sugar into 100 milliliters of water into his or her container. they will stir the water gently for 20 seconds.which student's sugar willmost likely dissolve the fastest?

Since these three vehicles would all go the same speed at the bottom if released from the same height, they would not all possess the same amount of kinetic energy because they have different amounts of potential energy.

Kinetic energy is dependent on the velocity of the object as well as its mass. Therefore, the three vehicles, though they have the same speed, would differ in their kinetic energy due to their varying mass. This concept is known as mechanical energy and is the sum of kinetic and potential energy.

Mechanical energy is also constant in an ideal situation where no external forces are acting upon the object. For instance, the three vehicles will all have the same mechanical energy at the release point but would not possess the same amount of kinetic energy due to their mass difference. Therefore, they would have different amounts of potential energy when released.

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Answer:

143.6/21.2

=6.773584906

=6.8

Looking at your spectroscope, you see several discrete, clearly defined lines. The one possible source for this spectrum is fluorescent lamp.

What is fluorescent lamp?

A  fluorescent lamp is a low pressure mercury lamp or discharge bulb. When the light spectrum emitting from the fluorescent bulb fall on the spectroscope, it releases several discrete lines.

In this lamp, fluorescence source is used which produces visible light when it lights up.

Moreover, a fluorescent lamp alters electrical energy into chemical energy or light more efficiently than the incandescent lamp.

Simply put, fluorescent lamps are more efficient than other lamps and are mostly used for commercial and outdoor application as they use 75% less electricity.

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The total mass of the system after combustion is therefore 1Kg (ashes) + 9Kg (gases and water vapor) = 10Kg, which is the same as the total mass before combustion.

Therefore, if the mass of the logs before burning was 10Kg, the total mass of the system before combustion was 10Kg (logs) + 0Kg (oxygen) = 10Kg. After combustion, the mass of the ashes was 1Kg, so the mass of the remaining gases and water vapor released into the atmosphere was 10Kg - 1Kg = 9Kg.

There are three fundamental quantities in mechanics that are conserved. These are power, forward motion, and angular momentum.

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The gravitational acceleration on the surface of the alien planet is 11.2 m/s².we can use kinematic equations to determine the gravitational acceleration.

To find the gravitational acceleration on the surface of the alien planet, we can use the kinematic equation for projectile motion:\($ \Delta x = v_{0x}t + \frac{1}{2}a_xt^2 $\)

where Δx is the horizontal distance, \($v_{0x}$\) is the initial horizontal velocity (which is equal to the maximum distance divided by the hang time), t is the hang time, and ax is the horizontal acceleration (which is equal to zero). We can rearrange this equation to solve for the hang time:

\($t = \frac{\Delta x}{v_{0x}}$\)

Using the given values, we can calculate the hang time to be 5.6 seconds. Then, we can use the kinematic equation for vertical motion to solve for the gravitational acceleration:

\($\Delta y = v_{0y}t + \frac{1}{2}ayt^2$\)

where Δy is the maximum height (which is equal to half the maximum distance), \($v_{0y}$\) is the initial vertical velocity (which is zero), t is the hang time, and ay is the vertical acceleration (which is equal to the gravitational acceleration). We can rearrange this equation to solve for the gravitational acceleration:

\(a_y = \frac{2\Delta y}{t^2}\)

Plugging in the given values, we find that the gravitational acceleration on the surface of the alien planet is 11.2 m/s².

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Answer:

The automobile's acceleration in that time interval is -2 m/s^2

Explanation:

The acceleration is defined as the rate of change of the velocity.

The average acceleration in a given lapse of time is calculated as:

A = (final velocity - initial velocity)/time.

In this case, we have:

initial velocity = 31 m/s

final velocity = 15 m/s

time = 8 seconds.

Then the average acceleration is:

A = (15m/s - 31m/s)/8s = -2 m/s^2

The number and mass concentration for which the particles and the air in a unit volume of aerosol scatter equal amounts of light depend on several factors, including the size and composition of the particles, the wavelength of light, and the refractive index of the particles and air.

In general, the scattering of light by particles in an aerosol is described by Mie theory, which takes into account the size parameter (2πr/λ, where r is the particle radius and λ is the wavelength of light) and the complex refractive index of the particles.

To achieve equal scattering of light by particles and air in a unit volume of aerosol, the number concentration of particles and their size distribution should be such that the scattering cross-section of the particles matches the scattering cross-section of the air molecules. Similarly, the mass concentration of particles should be adjusted to achieve an equal scattering effect.

The specific values of number and mass concentrations required for equal scattering will vary depending on the aforementioned factors and need to be determined through calculations or experimental measurements for a particular aerosol system.

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Answer:

125 joules

Explanation:

The velocity of the runner having a mass of 75 kg will be 9.93 m/s.

The energy of the body by virtue of its motion is called its kinetic energy.

Given is velocity of a runner who has a mass of 75 kg and 3,700 Joules of energy.

The kinetic energy of the body is given by the following formula -

KE = 1/2 mv².

Substituting the values -

3700 = 1/2 x 75 x v²

7400 = 75 x v²

v² = 7400/75

v² = 98.66

v = 9.93 m/s

Therefore, the velocity of the runner having a mass of 75 kg will be 9.93 m/s.

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The distance required to stop a vehicle depends on various factors, including reaction time, road conditions, vehicle weight, and braking efficiency. However, a commonly used estimate for the average stopping distance of a vehicle traveling at 55 mph is around 240 feet.

To calculate this estimate, we consider the total stopping distance, which comprises two components: the thinking distance and the braking distance. The thinking distance is the distance traveled during the driver's reaction time, typically assumed to be around 1.5 seconds. During this time, the vehicle continues to move at its initial speed. The braking distance is the distance traveled from the moment the brakes are applied until the vehicle comes to a complete stop.

While the average stopping distance at 55 mph is estimated to be around 240 feet, it is important to note that actual stopping distances can vary based on the factors mentioned earlier. It is always crucial to maintain a safe following distance and be aware of road conditions to ensure a proper stopping distance.

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The force that results in a material's deformation and subsequent reduction in volume is known as compression stress.

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The unwinding roll should be released from a height of 3.6m in order to hit the floor at the same time as the other roll.

When the roll of toilet paper is dropped from a height of 1.8 m, it experiences a gravitational force that accelerates it towards the ground. The acceleration experienced by the roll of toilet paper is equal to the acceleration due to gravity,

g = 9.8 m/s².

On the other hand, the roll of toilet paper that is unwinding experiences a tension force in addition to the gravitational force.

The tension force is caused by the frictional force between the roll and the toilet paper as it unwinds. This force acts upwards and opposes the gravitational force acting downwards. To determine the height from which the unwinding roll should be released, we need to equate the net force acting on it to the gravitational force acting on the other roll.

Let H be the height from which the unwinding roll is released. The net force acting on the unwinding roll is given by the tension force minus the gravitational force, which is:

T - mg

where T is the tension force, m is the mass of the roll and g is the acceleration due to gravity.

Since the two rolls are identical, m is the same for both rolls. The gravitational force acting on the other roll is simply mg. Equating the net force to the gravitational force and solving for H, we have:

T - mg = mg

T = 2mg

Using the formula for tension force in a hanging object, we can express T as:

T = mgh / L

where L is the length of the roll and h is the height from which it is released.

Substituting T = 2mg and solving for h, we obtain:

h = 2L

Therefore, the unwinding roll should be released from a height of

2L = 2(1.8m) = 3.6m

in order to hit the floor at the same time as the other roll.

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Answer:

option A is your answer hope it will help you

Answer:

up with the argument that trade was better than conquest or warfare at spreading religions such as Islam. Which two pieces of evidence would support this argument?Mahmūd attacked India because of its wealth from the Silk Road trade.Islamic scholars moved from Baghdad to Delhi in 1258.The Ramayana and Mahabharata are popular subjects of Southeast Asian art.Conquering armies did not spread religion and culture efficiently.Islam reached southern India before Mahmūd attacked northern India.

Explanation:

Answer:

Workdone = 40 Nm

Explanation:

Force = 20 Newton

Distance = 2 meters

To find the work done;

Mathematically, work done is given by the formula;

Workdone = force * distance

Workdone = 20 * 2

Substituting into the formula, we have;

Workdone = 40 Nm

1. Zygote 2.  2ry oocyte (egg)  3. Morula 4. 4-cell stage 5. Blastocyst  6. Blastomeres 7. Inner cell mass - terms with the correct numbers.

The process by which a parent cell divides into two daughter cells is known as cell division. Cell growth and chromosome replication precede cell division, which often happens as part of a longer cell cycle.

Meiosis is a type of cell division that produces haploid gametes for sexual reproduction by reducing the number of chromosomes from two of each type in the diploid parent cell to one of each type in the daughter cells. Mitosis is a type of cell division that produces daughter cells that are genetically identical to the parent cell.

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Answer:

If the same force is applied to an object with a large mass it will have a smaller (lesser) acceleration

Explanation:

force and mass are inversely proportional. force and acceleration are directly proportional. which means greater mass have smaller acceleration and smaller mass has greater acceleration. this is due to newtons second law of motion.

In the case when the same force is applied that contains high mass so it contains less acceleration.

There should be an inverse relationship between the force and mass. However, there is the direct relationship between the force and acceleration. That means in the case when there is the high force so there should be less acceleration and less mass contains high acceleration by applying the second law of motion of newton.

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Answer:

3.088 m/s²

Explanation:

Let's see which variables we are given in this problem.

The kinematics equation that includes these four variables is:

Substitute the known variables into the equation and solve for a.

The car's acceleration while slowing down from 27.7 m/s to 10.9 m/s in 105 m is 3.088 m/s².

The water bottle  has given out thermal energy of 168000 Joule.

By virtue of its temperature, a system is in a state of thermodynamic equilibrium, which contains thermal energy.

Unlike the energy of systems that are not in a state of thermodynamic equilibrium, thermal energy cannot be transformed into meaningful work as quickly.

The water bottle  has given out thermal energy = mass of the water × specific heat capacity of water × change in temperature

= 0.8 kg × 4200 J/kg-°C × (80° C - 30° C)

= 168000 Joule.

So, the water bottle  has given out energy of 168000 Joule.

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An automobile is driving uphill. Which form of energy is not involved in this process?

electromagnetic

potential

kinetic

chemical

Electromagnetic

Answer:Electromagnetic said the person above me wait AYO HEAR ME OUT-

The student could measure the velocity of the lump of clay before it strikes the rod, and the angle of rotation of the rod after the collision. In this scenario, we can apply the principle of conservation of angular momentum. Initially, the rod is at rest, so its initial angular momentum is zero.

When the lump of clay strikes the free end of the rod, it exerts torque on the rod and causes it to rotate. The angular momentum of the rod changes from zero to some final value. By applying the conservation of angular momentum, we can determine the change in the angular momentum of the rod.

To apply the conservation of angular momentum, we need to know the initial and final angular velocities of the rod. Since the rod is initially at rest, its initial angular velocity is zero. To determine the final angular velocity of the rod, we need to measure the angle of rotation of the rod after the collision.

We also need to know the initial and final moments of inertia of the rod. The moment of inertia of the rod is given by I=13Mℓ2. This means that the moment of inertia of the rod is proportional to its length and mass. The moment of inertia of the rod remains constant during the collision, so we can use the same value for the initial and final moment of inertia.

Finally, we need to know the angular momentum of the lump of clay before it strikes the rod. This can be calculated from the mass and velocity of the lump of clay. Thus, the student could measure the velocity of the lump of clay before it strikes the rod, and the angle of rotation of the rod after the collision to determine the change in angular momentum of the rod.

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After considering the given data we conclude that the wavelength of visible light emitted by a hydrogen atom when its excited electron drops from n = 6 to n = 2 is approximately 102.55 nm.

To evaluate the wavelength (in nm) of visible light emitted by a hydrogen atom when its excited electron drops from n = 6 to n = 2, we can apply the Rydberg formula:
\(1/\lambda = R(1/n_1^{2} - 1/n_2^{2} )\)
Here:
λ = wavelength of the emitted light
R = Rydberg constant \((1.097 *10^7 m^{-1} )\)
\(n_1\) and \(n_2\) = initial and final energy levels of the electron
Applying substitution of the given values, we get:
\(1/lambda = (1.097 * 10^7 m^{-1} )(1/6^{2} - 1/2^{2} )\)
Evaluating for λ, we get:
λ = 102.55 nm
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To determine the charge, we can use the equation for the electric field due to a point charge:

E = k * q / r^2

Where E is the electric field, k is the Coulomb constant (8.98755 x 10^9 Nm^2/C^2), q is the charge, and r is the distance from the point charge.

We can rearrange this equation to solve for q:

q = E * r^2 / k

Plugging in the given values:

q = (68.3 N/C) * (28.8 m)^2 / (8.98755 x 10^9 Nm^2/C^2)

q = (68.3 N/C) * (826.24 m^2) / (8.98755 x 10^9 Nm^2/C^2)

q = (68.3 N/C) * (826.24 m^2/C^2)

q = (68.3 N/C) * (826.24 / 8.98755 x 10^9) C

q = (68.3 N/C) * (9.26 x 10^-9) C

q = 6.36 x 10^-7 C

The charge is approximately 6.36 x 10^-7 Coulombs.

Answer:

The horizontal component of the velocity is approximately 42.6 m/s

Explanation:

The given parameters are;

The speed of the arrow when it was shot = 52 m/s

The angular direction in which the arrow was shot, θ = 35° above the horizontal

The horizontal component of the velocity is found by the resolution if the velocity vector into its components as follows;

The horizontal component of the velocity = Velocity in the x-direction = vₓ

vₓ = v × cos(θ) = 52 × cos (35°) ≈ 42.6 m/s

vₓ = The horizontal component of the velocity ≈ 42.6 m/s

Answer: no but if u mean the only planet that has gravity on it then yes

Explanation: Consider this statement: Earth is the only source of gravity in the solar system. ... The Sun, Moon, planets, and other objects in the solar system also have a gravitational pull.

If you double the current through a resistor, the power dissipated by the resistor change by factor of 4.

The stream of positive charges which flow from the positive terminal to the negative terminal of the battery attached in a circuit.

Power dissipated through a resistor is related to current as

P  =I²R

When the current is doubled, the new power will be

P' = (2I)²R

P' = 4 I²R

P' = 4P

Thus, the power change by the factor of 4.

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Answer: D. It shows Newton's first law of motion, which states that an object tends to stay in motion unless an outside force acts upon it.

Explanation:

Newton's first law of motion states that an object tends to stay in motion unless an outside force acts upon it.

Answer:

Similitudes y diferencias entre los músculos de los peces y los de los animales terrestres.

Explicación:

Los músculos de los peces se diferencian del músculo de los animales terrestres porque los peces tienen músculos rojos, rosados y blancos. También tienen tejido muscular de pescado que se compone de músculo estriado al igual que el músculo de los animales terrestres. La mayor parte del tejido muscular de los peces es de color blanco, pero muchos peces también tienen una cierta cantidad de tejido oscuro de color marrón o rojizo. El músculo oscuro se encuentra justo debajo de la piel a lo largo del costado del cuerpo.

Answer:

Wheres. The. Pics. Of. The. Structures

Explanation:

The diagram that represents the directions of the velocity, v, and acceleration, a, of a toy car as it moves in a clockwise, horizontal, circular path at a constant speed is Diagram B.

In a circular motion, the velocity is always tangential to the circular path, while the acceleration is always directed towards the center of the circle. This means that the velocity and acceleration are always perpendicular to each other.

In Diagram B, the velocity is shown as a vector pointing in the tangential direction to the circular path, while the acceleration is shown as a vector pointing towards the center of the circle. This is the correct representation of the directions of the velocity and acceleration of a toy car moving in a clockwise, horizontal, circular path at a constant speed.

Therefore, the correct answer is Diagram B

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Answer: A) Had twice as much mass

Explanation:

Given that the force of gravity pulling down on school = 400,000 N

The force of force of gravity is the product of mass of the body and the acceleration due to gravity. The acceleration due to gravity is constant on the earth surface with a constant value of 9.8m/s²

Hence,

F = mg = 800N

F = force of gravity, m = mass of body, g =! acceleration due to gravity.

since g is constant, to have 2F, then mass has to be doubled, that is 2m(2 * mass)