a point that moves on a coordinate line is in simple ---select--- when its distance d from the origin at time t is given by either d = a sin(t) or d = a cos(t

While the element Krypton was indeed named after the Greek word "kryptos," meaning "hidden" or "secret," the reason for its name is not related to its properties as a secret element.

Krypton was discovered in 1898 by British chemists Sir William Ramsay and Morris Travers. They had been studying the gas that was produced when they evaporated liquid air, and they found that this gas contained a previously unknown element. Ramsay named the element Krypton because of its ability to hide within the other gases in the air, making it difficult to detect.

So, while the name Krypton does have a connection to the idea of secrecy, it is not because the element itself has any particular properties that relate to secrecy. Rather, it was named for its elusive nature and the difficulty in detecting it.

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Without the magnetic field strength, we cannot calculate the magnetic force experienced by the electron moving at 4.1 x 10^3 m/s.

The magnetic force experienced by an electron moving in a magnetic field can be calculated using the formula F = qvB, where F represents the magnetic force, q is the charge of the electron, v is its velocity, and B is the magnetic field strength.

Given that the electron is moving at 4.1 x 10^3 m/s, we can substitute this value into the equation. However, the question does not provide the value for the magnetic field strength. To determine the magnetic force, we need the value of B.

Without this information, we cannot calculate the exact magnetic force experienced by the electron. It is important to note that the direction of the magnetic force is perpendicular to both the velocity of the electron and the magnetic field.

Therefore, the answer to the question would be that we are unable to determine the magnetic force without knowing the magnetic field strength.

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Answer:

When an object changes position with respect to a frame of reference, the object is in motion. Distance measures the path taken.

Answer:

3.141592653 im  king of NYC

Explanation:

Using the formula for the frequency of harmonics in an air-filled pipe, we can write:f_n = nv/(2L), where the pipe's length L, the air's sound speed (v), and harmonic number (n) are all variables.

Solving for L, we get:L = nv/(2f_n)For the third harmonic (n=3), we have:L = (3v)/(2f_3) = (3343 m/s)/(21120 Hz) = 0.137 m or 13.7 cm.

Using the given harmonic frequencies, we can determine the length of the pipe by applying the formula: wavelength = speed of sound / frequency.

From this, we can calculate the wavelengths of each harmonic and determine the ratio of their wavelengths. The ratio of the wavelengths will be in the form of 1:3:5 for the 1st, 2nd and 3rd harmonics respectively.

We can then use this ratio to determine the length of the pipe using the formula: length = wavelength x (n/2), where n is the harmonic number.

Therefore, the length of the pipe is approximately 13.7 cm. Using the given harmonic frequencies,

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I = 3.0A

What is current?

A stream of charged particles, such as electrons or ions, traveling through an electrical conductor or a vacuum is known as an electric current. The net rate of electric charge flowing through a surface or into a control volume is how it is calculated.

For a current-carrying wire running perpendicular to a magnetic field, the magnetic force acting on the wire is given by:

F = ILB

F = magnetic force, I = current, L = wire length, B = magnetic field strength

Given values:

F = 0.60N, L = 1.0m, B = 0.20T

Plug in and solve for I:

0.60 = I(1.0)(0.20)

I = 3.0A

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If you add something, you are being positive; if you subtract something, you are being negative.

Whatever is shown in the media should be properly understood by the audience. The connection between the audience and the message is referred to as "meaning" in communication terminology. This point of view asserts that what ultimately determines how people act are their inner perceptions.

Media representations refer to the ways in which the media presents particular communities, experiences, ideas, or topics from a particular ideological or value perspective.

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Answer:

no i dont think so

Explanation:

The speed of light in a certain substance is 89.0% of its value in water.

This means that when light travels through this specific substance, it moves at a rate of 89.0% compared to the speed at which it moves in water.

The speed of light can be affected by the medium it travels through, resulting in a slower or faster rate than its speed in a vacuum.

Summary: The speed of light in the given substance is 89.0% of the speed of light in water, indicating a change in the rate of light travel due to the medium it passes through.

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According to the given statement , the acceleration of the sphere at the instant when its speed is 27.0 m/s.

We can use the principles of electrostatics and kinematics.  a = [(9.00 x 10⁹ N * m² / C²) * |5.00 μC * 2.00 μC| / (0.08 m)²] / (4.00 x 10⁻³ kg).

1. Determine the electric force between the two charges:
  - The electric force between two charges can be calculated using Coulomb's Law:

F = k * |q1 * q2| / r².
  - In this case, q1 = 5.00 μC and q2 = +2.00 μC. The distance between them, r, is the horizontal distance of 8.00 cm (which is 0.08 m).
  - The constant k is 9.00 x 10⁹ N * m^2 / C².
  - Plugging in the values, we get F = (9.00 x 10^9 N * m² / C²) * |5.00 μC * 2.00 μC| / (0.08 m)².

2. Calculate the net force acting on the sphere:
  - At any instant, the net force acting on the sphere is the sum of the electric force and the force due to gravity.
  - However, in this case, gravity can be neglected, as stated in the question.
  - Therefore, the net force acting on the sphere is equal to the electric force between the two charges.

3. Calculate the mass of the sphere:
  - The mass of the sphere is given as 4.00 x 10⁻³ kg.

4. Apply Newton's second law:
  - Newton's second law states that the net force acting on an object is equal to the product of its mass and acceleration: Fnet = m * a.
  - In this case, the net force acting on the sphere is the electric force between the charges.
  - Plugging in the values, we get (9.00 x 10⁹ N * m^2 / C²) * |5.00 μC * 2.00 μC| / (0.08 m)² = (4.00 x 10⁻³ kg) * a.

5. Solve for the acceleration:
  - Rearranging the equation, we have a = [(9.00 x 10⁹ N * m² / C²) * |5.00 μC * 2.00 μC| / (0.08 m)²] / (4.00 x 10⁻³ kg).
  - Evaluating the expression, we find the value of acceleration.

By following these steps, you can find the acceleration of the sphere at the instant when its speed is 27.0 m/s.

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Answer:

FALSE

Explanation:

You breath in oxygen and your blood takes it through your body then you breath it out as carbon dioxide

Answer:

a

Explanation:

Answer:

A or each parent had at least one allele for white pedals

Explanation:

Answer:

Sound waves are reflected back

Answer:

A national park is one such protected area for the special species of flora and fauna of the region. In Nepal, there are numerous national parks to conserve and protect wildlife and their natural habitat.

RS is a composition of rotation and reflection in the Euclidean plane E². The precise description of RS depends on the specific properties of the rotation R and reflection S.

In general, if R and S have the same axis or line of symmetry, the composition RS results in a translation. If R and S have intersecting lines of symmetry, RS yields a glide reflection. If R and S have perpendicular lines of symmetry, RS produces a rotation.

It is important to consider special cases, such as parallel lines of symmetry, coinciding axes, or perpendicular lines of reflection, as they may lead to different outcomes. The classification of isometries in E² involves understanding how rotations and reflections combine to create different transformations in the plane.

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The friction force the brake pad applies to the shaft f = 0.34 N.

Solution:

∝ = Rf sin∅

(-3.05 x 10⁻³) = (9 x 10⁻³) f sin(-90°)

f = 0.34N

As the two surfaces slide over each other small ridges are pressed against each other. Friction creates a force on a surface that opposes its motion. Friction can be reduced by applying lubricant. Friction is a type of contact force. It exists between tangent faces.

Friction is the force the resistance to movement when one object rubs against another. Friction occurs when two objects rub against each other. Friction works against the motion and works in the opposite direction. The amount of friction depends on the materials that make up the two surfaces.

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Answer:

200 Newtons

Explanation:

20 kg x 10 m/s squared

Answer:

2. 1.85

Explanation:

the equations weight * distance / other persons weight = distance from fulcrum. so 66.4*2.35/84.2=1.8532 round down to 1.85

To find the volume of the solid obtained by rotating the region, we will need some more information, such as the function or shape of the region, the axis of rotation, and the interval of rotation. The terms you should be familiar with are:
1. Volume: The measure of the amount of space occupied by a solid figure.
2. Solid: A three-dimensional geometric figure.
3. Rotation: Turning a shape around a fixed point or axis.
4. Region: An area enclosed by a curve or boundaries.
5. Axis of rotation: The line around which the region is rotated to form the solid.
Once you provide these details, I'd be happy to help you find the volume of the solid obtained by rotating the region.

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Answer:

Shangdi or A: Di

Explanation:

Shangdi was considered to be the supreme deity during the Shang dynasty (1600–1046 century BCE), but during the Zhou dynasty (1046–256 BCE) he was gradually supplanted by heaven (tian).

Explanation:

Average speed = distance / time

v_avg = 47 km / 1.72 hr

v_avg = 27.3 km/hr

The maximum value of the average normal stress in the links connecting (a) points b and d is 101.56MPa and (b) points c and e is -21.7MPa.

Stress refers to the measure of an external force acting over the cross-sectional area of an object and is given as units of force per area: N/m2 (SI) or lb/in2 (US). The SI units are commonly referred to as Pascals (Pa). There are two types of stress experienced by normal stress and shear stress. When a force acts perpendicular to the surface of an object, it exerts a normal stress while when a force acts parallel to the surface of an object, it exerts a shear stress. In order to determine the average normal stress in the links provided, consider the bar ABC as a free body as attached. The moment of a force is the product of the force and the distance from the axis of rotation. Hence,

∑Mc = 0 where Mc is the summation of moment at point C

(0.04)FBD – (0.025 + 0.04)(20x10^3) = 0

(0.04)FBD – 1.3x10^3 = 0

FBD = 32.5x10^3 N (Link BD is in tension)

∑MB = 0 where MB is the summation of moment at point B

-(0.04)FCE – (0.025)(20x10^3) = 0

-(0.04)FCE – 0.5x10^3 = 0

FCE = -12.5x10^3 N (Link CE is in compression)

Net area of one link in tension = (0.008)(0.036-0.016) = 160x10^-6 m^2

Hence for two parallel links A = 320x10^-6 m^2

Net area of one link in compression = (0.008)(0.036) = 288x10^-6 m^2

Hence for two parallel links A = 576x10^-6 m^2

a) σBD = FBD/A = 32.5x10^3/320x10^-6 = 101.56x10^6 = 101.56MPa

b) σCE = FCE/A = -12.5x10^3/576x10^-6 = -21.7x10^6 = -21.7MPa

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This statement suggests that the ice undergoes a phase change from solid to liquid, indicating heat transfer.

All of the ice will melt, and the final temperature of the mixture will be 10°C.

If the surroundings were at a lower temperature than the ice, heat would flow from the ice to the surroundings, causing the ice to freeze instead of melt.

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The wave function of a particle gives us information about the probability of finding the particle at a particular location in space.

It is a mathematical representation of the quantum state of the particle and can be used to calculate the probability of different outcomes when the particle is observed. Essentially, the wave function tells us the likelihood of finding the particle in a particular place at a particular time. This is important because in quantum mechanics, particles do not have a definite location until they are observed. The wave function allows us to make predictions about where the particle is likely to be found.

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For a given potential difference, a bigger resistance means a smaller current through a component.

Resistance in an electrical circuit is a measure of the opposition to the flow of electric current. It is measured in units of ohms (Ω) and is represented by the symbol R in electrical equations.

The amount of resistance in a circuit can affect the amount of current flowing through it and the voltage across it. In a simple circuit, resistance is primarily determined by the materials used in the circuit, such as the wires and the components.

In a more complex circuit, resistance can also be affected by the design of the circuit, including the number of components and the way they are connected. The resistance determines the current in the circuit.

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Answer:

A. Increase the distance between the objects.

D. Decrease the mass of one of the objects.

Explanation:

The smaller the mass of an object the less gravity it has and the farther away two objects are the less gravitational force

Answer:

The mineral's hardness is greater than 4 but less than 5.5 on the Mohs hardness scale.

Answer: you have it correct

Explanation:

Answer:yall dumd dang thought yall know better

Explanation:

hehe

Answer:

from a lesser hight

Explanation:

because you need less force

hope its right if it is mark brainlyest ;)

Answer:

infra-red

molecules

vacuum

ionizing (?)

transmission

redirected

absorbed

emission

dark

emitter

reflectors

deflect