what is the magnitude of the angular momentum of the asteroid about the earth just before the asteroid strikes the moon?

Answer:

The substance is changing state from a gas to a liquid to a solid. As the temperature changes we also know that A

Explanation:

Answer:

The magnetic field.

Explanation:

The magnetic field is the area around a magnet that has magnetic force. All magnets have north and south poles.

The angle of incidence in the glass is approximately 31.8°.

To find the angle of incidence in the glass, we can use Snell's law, which states that the ratio of the sines of the angles of incidence and refraction is equal to the ratio of the indices of refraction:

n1 * sin(angle of incidence) = n2 * sin(angle of refraction)

In this case, n1 is the index of refraction for flint glass (1.61), n2 is the index of refraction for ethanol (1.36), and the angle of refraction in ethanol is 27.2°.

Plugging in these values into Snell's law, we get:

1.61 * sin(angle of incidence) = 1.36 * sin(27.2°)

To find the angle of incidence, we can rearrange the equation:

sin(angle of incidence) = (1.36 * sin(27.2°)) / 1.61

Now, we can solve for the angle of incidence by taking the inverse sine (or arcsine) of both sides:

angle of incidence = arcsin((1.36 * sin(27.2°)) / 1.61)

Calculating this value, the angle of incidence in the glass is approximately 31.8°.

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Answer:

11.8 m/s

Explanation:

At the top of the hill, there are two forces on the car: weight force pulling down (towards the center of the circle), and normal force pushing up (away from the center of the circle).

Sum of forces in the centripetal direction:

∑F = ma

mg − N = m v²/r

At the maximum speed, the normal force is 0.

mg = m v²/r

g = v²/r

v = √(gr)

v = √(9.8 m/s² × 14.2 m)

v = 11.8 m/s

Answer: Neap tides

Explanation: Neap tides are tides that have the smallest tidal range, and they occur when the Earth the Moon, and the Sun form a 90o angle. They occur exactly halfway between the spring tides when the Moon is at first or last quarter.

Answer:

Explanation:

Using the principle of conservation of energy, the potential energy is converted to kinetic energy, assuming any losses.

Kinetic energy is given by ½mv²

Potential energy is given by mgh

Where m is the mass, v is the velocity, g is acceleration due to gravity and h is the height.

Equating kinetic energy to be equal to potential energy then

½mv²=mgh

V

Making v the subject of the formula

v=√(2gh)

Substituting 9.81 m/s² for g and 20 m for h then

v=√(2*9.81*20)=19.799 m/s

Rounding off, v is approximately 20 m/s

Answer:

19.8 m/s

Explanation:

During the motion of a pemdulum bob, it casually converts kinetic energy to potential energy and vice versa.

A pendulum bob reaches its maximum speed at a position closest to its equilibrium position and has its lowest when it is farthest from the equilibrium position.

The maximum speed of a pendulum bob based on the mass involved and the maximum displacement from the equilibrium position is obtained from

Maximum kinetic energy = Maximum potential energy

Maximum potential energy occurs at the farthest point from equilibrium, that is,

P.E(max) = mgh

Maximum kinetic energy = ½mv²

½mv² = mgh

v = √2gh

g = acceleration due to gravity = 9.8 m/s²

h = farthest height from equilibrium position = 20 m

v = √(2×9.8×20) = 19.8 m/s

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Answer:

40000N

Explanation:

Given parameters:

Mass of the car = 1000kg

Velocity of the car  = 20m/s

Time taken  = 0.5s

Unknown:

Force on the car  = ?

Solution:

According to Newtons second law of motion:

 F = m a

F is the force

m is the mass

 a is the acceleration

 F = m \(\frac{change in velocity}{time}\)  

 Change in velocity  =  0 - 20  = -20m/s

 F = 1000 x \(\frac{-20}{0.5}\)  = -40000N

The force on the car is 40000N

According to the uncertainty principle, it is impossible to measure both the position and the velocity of a particle at the same time.

The uncertainty principle is a concept from quantum mechanics, according to which the precise location and momentum of a particle cannot be measured simultaneously.

It is impossible to predict the future behavior of particles or systems with certainty. The uncertainty principle was proposed by German physicist Werner Heisenberg in 1927.

According to the uncertainty principle, measuring the momentum of a particle will disturb its position and measuring its position will disturb its momentum. This is because the act of measurement itself changes the state of the particle.

In conclusion, the  answer is that according to the uncertainty principle, it is impossible to measure both the position and the velocity of a particle at the same time.

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The map of the world temperature zones gives;

23. Zone A = The North Frigid zone

Zone B = The North Temperate zone

Zone C = The Torrid

Zone D = The South Temperate zone

Zone E = The South Frigid zone

24. Zone C, the Torrid zone

25. Zone C, the Torrid zone

26. The Torrid zone

23. The five temperature zones of the world based on the annual temperatures are;

The north frigid zone

The north temperate zone

The torrid zone (tropics)

The south temperate zone

The south frigid zone

Each of the five zones shown on the map are;

Zone A = The North Frigid zone

Zone B = The North Temperate zone

Zone C = The Torrid zone Tropics

Zone D = The South Temperate zone

Zone E = The South Frigid zone

24. The name of the temperature zone that includes the equator is; Zone C, the Torrid zone (The tropics).

The Equator is located around the horizontal line that runs around the center of the Earth at 0 ° latitude.

25. The zone that has the greatest amount of human habitable land mass is; Zone C, the Torrid zone, which covers 40% of the geographic surface of the Earth.

26. The zone that has the highest temperature all year round is the zone farthest from the north and south Frigid zone which is the Torrid zone

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Answer:

Explanation:

Your answer:

150 kilometer's per hour.

Answer:

43 kg

Explanation:

Force (F) = 162 N

acceleration (a) = 3.8 m/s²

mass (m) = ?

We know

F = m * a

162 = m * 3.8

m = 162 / 3.8

m = 43 kg

It's mass is 43 kg.

Hope it will help you :)

Explanation:

When the speed of sound near the ground is reduced, (such as on a cold day when the layer of air nearest ground is colder than the air above) the higher speed of the wavefronts above cause a bending of sound toward the ground.

Answer: the formula for momentum is velocity times mass

car :

350 x 20 = 7000

truck:

400 x 17.5 = 3000

Ans : Car has a greater momentum

Explanation: Please mark Brainlest

After considering the given data the height from which the gannet dived is approximately 51.84 m.

To evaluate the height from which a gannet dived if it hits the water at 32 m/s, assuming that the gannet was motionless before starting its dive, we can apply the law of conservation of energy, which projects  that the initial potential energy of the gannet is equivalent to its final kinetic energy prior to hitting the water. Then, we can write:
\(mgh = (1/2)mv^2\)
Here:
m = mass of the gannet
g = acceleration due to gravity
h = height from which the gannet dived
v = velocity of the gannet just before hitting the water
Considering that the mass of the gannet is 1 kg, and applying substitution of the given values, we get:
\((1 kg)(9.8 m/s^2)(h) = (1/2)(1 kg)(32 m/s)^2\)
\(h = (1/2)(32 m/s)^2 / (9.8 m/s^2)\)
h = 51.84 m
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The complete question is
A gannet is a seabird that fishes by diving from a great height. If a gannet hits the water at 32 m/s , what height did it dive from? Assume that the gannet was motionless before starting its dive.

Answer:

C, A and E

Explanation:

In theory you always assume that the prostive is going to the negtive and since C, A and E are in series they all will turn off will turn off

To find how much pressure is applied to an object, you will need to use the formula for pressure, which is: Pressure = Force / Area.

In this formula, "pressure" is the amount of pressure applied to an object, "force" is the amount of force being applied to the object, and "area" is the area over which the force is being applied.

For example, if you have a force of 10 Newtons being applied to an area of 2 square meters, you would use the formula to find the pressure as follows:
Pressure = 10 N / 2 m² = 5 N/m²

So in this case, the pressure being applied to the object is 5 Newtons per square meter.

It is important to note that the units for pressure, force and area must all be consistent in order for the formula to work correctly. For example, if you have a force in Newtons and an area in square meters, your pressure will be in Newtons per square meter. If you have a force in pounds and an area in square inches, your pressure will be in pounds per square inch.

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A person's strength, speed, power, agility, flexibility, and endurance are all increased with cross training, which also helps to reduce the chance of injury.

Cross-training is the technique of preparing employees to perform duties that go outside of their typical responsibilities or to work in multiple different jobs. For instance, cross-training could be used to teach someone who works in collections how to work in billing, and the other way around.

This is based on the finding that strengthening one limb while exercising the opposite limb results in a phenomena known as cross-training, also known as the contralateral strength training effect.

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True. Cross training is a type of training routine that combines two or more different exercises into a workout to prevent injuries, burnout, and overuse.

What is the cross-training training method?

Cross-training is the technique of preparing employees to perform duties that go outside of their typical responsibilities or to work in multiple different jobs. For instance, cross-training could be used to teach someone who works in collections how to work in billing, and the other way around.

A piece of cardio training equipment is a cross trainer, commonly referred to as an elliptical trainer. It is a fantastic full-body exercise and works your arms and legs at the same time. Cross training and a cross trainer are very different from one another, however a cross trainer can play a significant role in a cross training regimen.

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Explanation:

Veins carry deoxygenated blood from different parts of the body to our heart. ... Since a larger volume of blood is collected in the right auricle than that of the left auricle, right auricle is larger than the left auricle.

(a) The magnetic field strength at the center of the loop is 4π × \(10^{-4\) Tesla, and (b) The energy density at the center of the loop is 1.6 × \(10^3\) Joules per cubic meter.

(a) To find the magnetic field strength at the center of a circular loop of wire, we can use the Biot-Savart law, which relates the magnetic field at a point to the current flowing through a nearby wire segment. For a circular loop, the magnetic field at the center is given by:

B = μ₀I/2R

where μ₀ is the permeability of free space, I is the current flowing through the loop, and R is the radius of the loop. Substituting the given values, we get:

B = (4π × \(10^{-7\) T·m/A) × (100 A)/(2 × 0.05 m) = 4π × \(10^{-4\) T

Therefore, the magnetic field strength at the center of the loop is 4π × \(10^{-4\) Tesla.

(b) To find the energy density at the center of the loop, we can use the equation for magnetic energy density, which relates the magnetic field strength to the energy per unit volume of the magnetic field. The energy density is given by:

u = B²/2μ₀

Substituting the magnetic field strength we found in part (a), we get:

u = (4π × \(10^{-4\) T)²/(2 × 4π × \(10^{-7\) T·m/A) = 1.6 × \(10^3\) J/m³

Therefore, the energy density at the center of the loop is 1.6 × \(10^3\) Joules per cubic meter.

In summary, the magnetic field strength at the center of the loop is 4π × \(10^{-4\) Tesla, and the energy density at the center of the loop is 1.6 × \(10^3\) Joules per cubic meter. These values are important for understanding the behavior of magnetic fields and their interactions with other objects in the vicinity of the loop.

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Answer:

Troposphere

High-pressure areas form due to downward motion through the troposphere, the atmospheric layer where weather occurs.

When the wavelength of a photon is reduced or 'shrunk', its energy increases.

This is because the energy of a photon is inversely proportional to its wavelength. This relationship is described by the equation E = hc/λ, where E is the energy of the photon, h is Planck's constant, c is the speed of light, and λ is the wavelength of the photon.

When the wavelength is reduced, the denominator of the equation becomes smaller, resulting in a larger value for E. Therefore, the energy of the photon increases when its wavelength is reduced.

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Interference occurs when two or more waves meet and interact with each other. These interactions can be constructive or destructive, depending on how the waves are aligned with each other.

Constructive interference occurs when waves are aligned in phase with each other, resulting in an increase in amplitude, while destructive interference occurs when waves are aligned out of phase, resulting in a decrease in amplitude. Of the group of answer choices given, the situation that would result in interference is when a wave bounces off an object and interferes with another wave in the same space.

When the wave is reflected off an object, it produces a new wave that interacts with the original wave, resulting in interference. This can lead to constructive interference if the waves are aligned in phase, or destructive interference if they are aligned out of phase.

Interference occurs when two waves meet and interact with each other. These interactions can be either constructive or destructive, depending on the alignment of the waves with each other. When waves are aligned in phase, constructive interference occurs, resulting in an increase in amplitude. On the other hand, when waves are aligned out of phase, destructive interference occurs, resulting in a decrease in amplitude.

The situation that would result in interference is when a wave bounces off an object and interferes with another wave in the same space. This can lead to either constructive or destructive interference, depending on how the waves are aligned.

Therefore, the answer is wave bouncing off an object.

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Answer:   Natural stone

Explanation:

Answer:

Natural stone

Explanation:

The most common natural stones used to make countertops include granite, marble, soapstone, and slate.

Answer:

The speed is that it would take 121.05 seconds to run a kilometer.

Explanation:

Since there are 1000 meters in a kilometer, divide 400 meters by 4, and 48.42 by 4. Then you get 100 meters equals 12.105 seconds. Multiply that by ten, and you get 121.05 seconds

If there is a unique solution to a system of linear equations, the pivot columns in the augmented matrix must be linearly independent.

In the context of solving a system of linear equations using the augmented matrix, the presence of pivot columns corresponds to the existence of leading 1's in the row echelon form or reduced row echelon form of the augmented matrix.

These leading 1's indicate the pivot positions in the matrix.

For a system of equations to have a unique solution, every variable in the system must be associated with a pivot column.

In other words, there must be a leading 1 in each column that corresponds to a variable. This ensures that each variable has a unique value assigned to it, resulting in a unique solution.

If the pivot columns were linearly dependent, it would indicate that one or more variables can be expressed as linear combinations of other variables. This would lead to multiple solutions or an infinite number of solutions, rather than a unique solution.

Therefore, to have a unique solution, the pivot columns in the augmented matrix must be linearly independent, ensuring that each variable is associated with a unique pivot column.

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Answer:

a

Explanation:

Answer: B

Explanation:

Classical momentum is defined to be the product of mass and velocity. Increasing the objects total mass or their velocity would also increase the momentum. The only applicable answer is B, increasing the mass of the object.

\(p=mv\)

Answer:

B. By increasing its mass

Explanation:

Momentum of an object is directly proportional to its mass and velocity