Water ______________ easier in the mountains because there is less air pressure.

1. Boils
2. Evaporates
3. Condenses
4. Sublimates

(A) The two additional forces that act on the sled as it travels from the top of the hill to the bottom are friction force and weight of the children.

(B) The force of friction is opposing the motion while the weight of the children is assisting the downward motion.

The forces that act on the sled as it travels from the top of the hill to the bottom with either aid the downward motion or oppose the downward motion.

The forces acting on the sled include the following;

The weight of the children is acting downwards and it will increase the motion downwards since there in the same direction.

The force of friction between the surface of the sled and the hill will oppose the downward motion of the children as the father exerts the downward force.

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Answer:

a = 5

Explanation:

F = M × A

15 = 3 × a

a = 15 / 3

a = 5

This is only if the toy can is pushing the book or smth coz the question looks incomplete...?

Answer:

5 m/s^2

Explanation:

Realize that Newton's Second Law explains that the net force is equal to the mass mulitplied by the acceleration, or in simple terms, F=ma. In the problem, the force is 15 newtons, and the mass is 3 kg. Substiting and dividing, we get 5 m/s^2 (5 meters per second squared).

Answer:

Chemical energy is energy stored in the bonds of atoms and molecules. ...

Mechanical energy is energy stored in objects by tension. ...

Nuclear energy is energy stored in the nucleus of an atom—the energy that holds the nucleus together. ...

Gravitational energy is energy stored in an object's height.

Answer:

Nuclear power

Electricity

Mechanic

Gravity

Explanation:

Answer:

4 meters............

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.

.

.

.

Answer:

94600kgm/s

Explanation:

Linear momentum of a body can be calculated using the formula;

P = mv

Where;

P = linear momentum (Kgm/s)

m = mass of body (kg)

v = speed of the moving body (m/s)

According to the provided information in the question, m = 110kg, v = 860m/s

P = 110 × 860

P = 94600kgm/s

The normal force on child 1 in Newtons from the seat they are sitting on is 441 N.

Given data of the children riding on seats in a Ferris wheel.

Each child has the same mass of 45.0 kg.

Child 1 and 2 are sitting in the center of the cars of the Ferris wheel at a distance of 12.0 m from the center of the wheel. Child 1 is near the ground, while child 2 is at the highest point. The wheel is rotating clockwise such that each child is moving with a linear speed of 6.00 m/s.

We have to find the normal force on child 1 in Newtons from the seat they are sitting on.

Normal force (\(F_n\) ) refers to the force that acts perpendicular to the surface of the contact. It is equal to the force applied by the surface to an object. It is also called the supporting force because it always acts in a direction opposite to that of the weight of the object.

As it opposes the weight of an object, the normal force is always equal to the weight of an object when there is no acceleration.

Hence, we can use the given formula to calculate the normal force.

\(F_n\)  = mg

Where,

\(F_n\) = Normal Force

g = acceleration due to gravity

m = mass of an object

The mass of each child is given as m = 45 kg

Acceleration due to gravity is denoted by the letter ‘g’ and is equal to 9.8 m/s².

Normal force experienced by the child 1 when he is sitting at the bottom of the wheel can be calculated as follows,

\(F_1\)  = m x g

\(F_1\)  = 45 kg x 9.8 m/s²

\(F_1\)  = 441 N

As per the law of motion, the force that acts in the radial direction in a rotating frame is known as the centrifugal force. It is also referred to as the pseudo force.

The pseudo force acting on the child 1 in the Ferris wheel can be calculated as follows:

F = m x rω²

Where,m = mass of the object

r = distance from the center

ω = angular velocity of an object

We can determine the angular velocity of the Ferris wheel as follows:

ω = v / r

Where, v = linear velocity

r = radius of the Ferris wheel

Here, the linear velocity of each child is given as 6.00 m/s, and the radius is given as 12.0 m.

ω = v / r

ω = 6.00 m/s / 12.0 m

ω = 0.5 rad/s

Substitute the given values in the formula,

F = m x rω²

F = 45 kg x 12.0 m x (0.5 rad/s)²

F = 135 N

The normal force acting on the child 1 when he is at the bottom of the Ferris wheel is 441 N.

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Answer:

in a generator mechanical energy is a device that converts a form of energy into electricty

The energy conversion provided by the generators is: mechanical to electrical energy. Hence, option (A) is correct.

An electric generator is a device that generates electric energy, which can either be immediately delivered to houses, businesses, and other structures or stored in batteries. Electromagnetic induction is the basis for how electric generators operate.

A horseshoe-shaped magnet's poles are quickly rotated around a conductor coil, which is a copper coil that has been tightly wound onto a metal core. An armature is made up of a conductor coil and a core. The armature is rotated by a mechanical energy source, such as a motor, by means of a shaft connection.

The magnetic field that exists between the magnet's two poles is broken off when the coil turns. The conductor's electrons will interact with the magnetic field, causing an electric current to flow through it.

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Answer:

50%.......

Explanation:

is the correct check it then send feedback

Answer:

the answer is An Arrow

Answer:

Yes! Thinking about it graphically a position vs time graph models meters per second in most cases, making every point on the line have the units m/s. If we want the find the slope we are finding the change between each point and those units would change to m/s/s or m/s^2 giving us the same units for acceleration. Simply put, slope of a velocity graph gives us acceleration.

Explanation:

A recognizable group of stars that is smaller than a constellation is known as an asterism.                                                                                        

An asterism can be a recognizable pattern or shape formed by a few bright stars within a constellation, such as the Big Dipper in the constellation Ursa Major. While constellations are officially recognized by the International Astronomical Union and have specific boundaries, asterisms are not officially recognized and can vary based on cultural and regional interpretations of the stars in the sky.
Some well-known examples of asterisms include the Big Dipper, which is part of the Ursa Major constellation, and the Pleiades or Seven Sisters, which is located within the Taurus constellation. These easily identifiable groupings of stars serve as valuable celestial landmarks for amateur stargazers and professional astronomers alike.

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Answer:

hiiiiiiiiiiiiiiiiiiiiiiiiii

Answer:

Hiii , how are you holding up with corona?

Explanation:

Answer:

left atrium

Explanation:

its the first chamber of the heart to receive oxygenated blood from the lungs

A spherical drop of water carrying a charge of 41pC has a potential of 570 V at its surface (with V=0 at infinity) (a) The radius of the drop is approximately 5.88 micrometers (μm).

(b) The potential at the surface of the new drop formed by combining two drops of the same charge and radius is approximately 1140 V.

(a) To find the radius of the drop, we can use the formula for the potential of a charged sphere, which is given by V = (k * Q) / r, where V is the potential, k is the electrostatic constant, Q is the charge, and r is the radius of the sphere. Rearranging the formula to solve for the radius, we have r = (k * Q) / V. Plugging in the given values of Q = 41 pC (pico coulombs) and V = 570 V, and using the value of k = 8.99 × 10^9 Nm^2/C^2, we can calculate the radius to be approximately 5.88 μm.

(b) When two drops combine to form a single spherical drop, the total charge remains the same. Therefore, the potential at the surface of the new drop can be calculated using the same formula as before, but with the combined charge. Since each drop has the same charge and radius, the combined charge will be 2 times the original charge. Plugging in Q = 82 pC (2 * 41 pC) and using the given value of V = 570 V, we can calculate the potential at the surface of the new drop to be approximately 1140 V.

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A compound microscope is a high-magnification microscope that consists of two or more lenses. In the field of microscopy, it is a popular instrument used to magnify objects. The name "compound" comes from the fact that the device has multiple lenses rather than just one.

The objective lens is positioned near the specimen and is magnified first, resulting in a much larger virtual image that is magnified once more by the eyepiece. The final result is that the final image is magnified twice the amount of each lens. The advantage of the compound microscope is that it may offer considerably greater magnification than other types of microscopes, allowing the viewer to see tiny details that would otherwise be invisible. A compound microscope is known as such because it has more than one lens. In this microscope, the objective lens is positioned near the specimen and is magnified first, resulting in a much larger virtual image that is magnified once more by the eyepiece. The final result is that the final image is magnified twice the amount of each lens. As a result, this microscope has a more significant magnification capacity than other microscopes, making it an ideal instrument for viewing microscopic objects. It is important to note that the magnification power of a compound microscope is determined by the eyepiece and the objective lens, which work together to create the final image.

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Answer:

Their function is to produce sound by allowing the free edges of the folds to vibrate against one another and also to act as the laryngeal sphincter when they are closed.

Answer:

Check attachment for your answer

Good luck

Answer:

A

Explanation:

thats what I think , though not sure

Answer:

The answer is A. Command economy

Explanation:

In a command economy, the government has the most control.

We have to use Newton's Second Law, knowing that the friction force is

Then,

Because the friction force is against the movement.

We know that m = 5kg, F = 75N, friction = 10.

Let's solve for a

The acceleration is 13 meters per square second.

Also, the force acting on the object is 65N because we have a net force present there.

So, the larger fish's speed immediately after lunch is 1.25 m/s. To answer this question, we need to use the conservation of momentum principle.

The total momentum before the collision must be equal to the total momentum after the collision.

Initially, the 6.0-kg fish is moving at 1.0 m/s and the 2.0-kg fish is moving at 2.0 m/s. The initial momentum (p_initial) can be calculated as:

p_initial = (m1 * v1) + (m2 * v2)
p_initial = (6.0 kg * 1.0 m/s) + (2.0 kg * 2.0 m/s)
p_initial = 6.0 kg m/s + 4.0 kg m/s
p_initial = 10.0 kg m/s

After swallowing the smaller fish, the larger fish's mass becomes 8.0 kg (6.0 kg + 2.0 kg). Let the final velocity of the larger fish be v_final. Now we can calculate the final momentum (p_final):

p_final = m_total * v_final
10.0 kg m/s = 8.0 kg * v_final

Now, we solve for v_final:

v_final = 10.0 kg m/s / 8.0 kg
v_final = 1.25 m/s

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Answer:

\( 3.278 \times {10}^{6} \)

Answer:

1. He feels worse off.

2. His awareness of the grim situation.

Explanation:

Elie Weisel's memoir "Night" is about the persecution of the jews by the Germans during the worst genocide in world history. The events leading up to the Holocaust and the resulting after-effects through his personal experience provides one of the most prominent witness accounts of the crime.

When Weisel states that "lying down wasn't an option", he reveals how congested space was in the cabin. The "lucky ones" were able to breathe in the fresh air from the window, while the rest have to be satisfied with wherever they are. This reveals his realization of the grim situation inside the over-packed cabin, where there is hardly any space to move.

And when he said that they "never ate enough to satisfy our hunger", he presents the realization and understanding of the grim situation in the train's cabin where eating is not a luxury, but a necessity to stay alive. And for that, they know they have to "economize, to save for tomorrow" rather than just stay full once.  

Answer:

1. He feels worse off.

2. His awareness of the grim situation.

Explanation:

Answer:

0.408 seconds

Explanation:

Assuming negligible air resistance, we can use the following kinematic equations to solve this problem:

Vertical motion:

\(v_y = v_{y0} + a_y * t\)

\(y = y_0 + v_{y0} * t + 0.5 * a_y * t^2\)

where

\(v_y\) = vertical velocity at time t

\(v_{y0}\) = initial vertical velocity = 8 m/s * sin(30°) = 4 m/s

\(a_y \)= acceleration due to gravity = -9.8 m/s^2 (negative because it's directed downward)

y = vertical position at time t

\(y_0\) = initial vertical position = 0 (assuming the ball is launched from the ground)

We want to find the time at which the vertical velocity is 0 m/s, so we can set \(v_y\) = 0 and solve for t:

0 = 4 - 9.8 * t

t = 4 / 9.8 = 0.408 seconds

Therefore, the vertical velocity of the ball will be 0 m/s at 0.408 seconds after it is launched.

Answer:

it is the dependent since it keeps changing over time get it :)

Explanation:

The solar wind, with a constant temperature of 1.3x10^5 K and a speed of 450 km/s, is a highly ionized plasma.

The solar wind, which is a stream of charged particles (plasma) emitted by the Sun, exhibits characteristics of a highly ionized plasma. As it travels from the Sun to the Earth, the solar wind encounters variations in temperature, density, pressure, and speed. In this case, with a constant temperature of 1.3x10^5 K and a speed of 450 km/s, the solar wind can be classified as a highly ionized plasma.

During a Coronal Mass Ejection (CME), eruptive phenomena on the Sun's surface cause a sudden release of a large amount of plasma and magnetic fields into space. This disturbance leads to an increase in the temperature of the solar wind to around 10^7 K and an increase in its speed to approximately 10^3 km/s. This enhanced energy and velocity result in a significant disruption of the solar wind's flow, making it a turbulent fluid.

Turbulent fluids are characterized by chaotic and irregular motion, with strong fluctuations and mixing. The increased temperature and speed during a CME generate turbulent behavior within the solar wind, leading to the disruption and mixing of plasma particles along its trajectory.

To determine the type of fluid flow, the Reynolds number (Re) is often used. It relates the flow's characteristics, such as velocity and length, to the fluid's viscosity. In this case, since the solar wind is a plasma and has negligible viscosity, the Reynolds number is extremely high, well above the turbulent threshold of 4000. Therefore, the solar wind with increased temperature and speed due to a CME can be classified as a turbulent fluid.

In summary, the solar wind, with a constant temperature of 1.3x10^5 K and a speed of 450 km/s, is a highly ionized plasma. However, during a Coronal Mass Ejection (CME), the temperature and speed of the solar wind increase significantly, leading to turbulent fluid behavior.

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The characteristics of Elements include:

Compounds:

Elements are substances that consist of only one type of atom. This means that all the atoms within an element are the same. Elements are represented by symbols, which are usually derived from their English or Latin names.

Compounds, on the other hand, are substances that are made up of two or more different types of atoms chemically combined together. Unlike elements, compounds have a definite chemical formula that represents the ratio of the atoms present in the compound. These formulas often use the symbols of the elements involved and indicate the number of atoms of each element present in the compound.

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Answer: Through the process of cellular respiration, the energy in food is changed into energy that can be used by the body's cells.