56.the hydra galaxy is moving away from earth at 6.0 x 107 m/s. what fraction of the speed of light is this?

Answer:

Proximity or variable time fuze

Explanation:

A fuze are components that produces a projectile bursting charge, thereby causing a detonating or release when its activation conditions are met.

There are different types of fuzes classified based on their function. Types are:

The reference spheroid does not represent a completely accurate picture of the Earth's gravity because the equipotential surface of the geoid is not smooth. Therefore, option (c) is the correct answer.

Geoid refers to an imaginary surface that follows the Earth's gravitational field in the absence of ocean currents, winds, and other phenomena. This surface, which is undulating, deviates from an ellipsoid or sphere of reference. To provide a good reference surface, satellites have the ability to detect variations in gravity accurately. The shape of the Earth is referred to as the geoid, which is an equipotential surface.

Gravity is constant throughout this surface. The geoid represents sea level on Earth if all ocean currents, winds, and tides were disregarded. Due to their respective positions and masses, the gravity of the Moon and Sun causes tides, among other things.  So the option (c) is the correct answer.
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The component of the airplane's velocity toward or away from the satellite is approximately 39.81 m/s.

When an airplane communicates with a satellite using a frequency of 1.585×10^9 Hz, the signal received by the satellite is shifted higher by 210 Hz. To find the component of the airplane's velocity toward or away from the satellite, we can use the Doppler effect formula:

Δf/f = v/c

Where Δf is the frequency shift (210 Hz), f is the original frequency (1.585×10^9 Hz), v is the component of the airplane's velocity toward or away from the satellite, and c is the speed of light (3.00×10^8 m/s).

Step 1: Plug the values into the formula:

210 Hz / (1.585×10^9 Hz) = v / (3.00×10^8 m/s)

Step 2: Solve for v:

v = (210 Hz / (1.585×10^9 Hz)) * (3.00×10^8 m/s)

Step 3: Calculate the value of v:

v ≈ 39.81 m/s

The component of the airplane's velocity toward or away from the satellite is approximately 39.81 m/s.

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The carbon-14 can be used to date the hammer suspected to be used in 3400 BC.

Half life is the time taken for a radioactive element to decay to half of its original value.

Thus, we can conclude that the carbon-14 can be used to date the hammer suspected to be used in 3400 BC.

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Answer:

annular solar eclipse

Explanation:

An annular solar eclipse happens when the Moon covers the Sun's center, leaving the Sun's visible outer edges to form a "ring of fire" or annulus around the Moon. It happened because the apparent size of the Moon is smaller than that of the Sun

Answer:

annular solar eclipse

Explanation:

a solar eclipse happens when the moon covers the sun centre

Answer:

9.8×104Nm−2,0.025,3.92×106Nm−2

Solution :

Here, L=10cm=10×10−2m

F=100kgf=100×9.8N

ΔL=0.25cm=0.25×10−2m,

Shearing stress =FL2=100×9.8(10×10−2) Sheraing strain =ΔLL=0.25×10−210×10−2 = 0.025 Shear Modulus of elasticity, G=Shearing stressShearing strain=9.8×1040.025

=3.92×106Nm−2

Explanation:

Answer:

1. Attacking the person

2. Stress fractures

Explanation:

If this helps this is on my opinion and I need do my best to help you:)

The total distance that block travel is 4 A.

In one full complete cycle of a motion. The block will move back and forth from its original position. Because of the block is pulled to the position x = A, we can say the initial distance travelled = A. When the block is released from the others after being pulled. The cycle = A + A + A = 3A. To hit one full cycle of its motion, the block has to travel, so,

the total distance = 3A + A = 4A

Hence, it is confirm that the total distance the block travel is 4A

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Answer:

(1) the total momentum is 275 kgm/s

(2) The momentum of each ball changes, and the total momentum stays the same.

(3) The mass of the second object is 3.5 kg

Explanation:

(1) In a closed system the total momentum is constant, it never changes.

For the given momentums, the total momentum is given as;

Total momentum = 110 kgm/s + 65 kgm/s + 100 kgm/s = 275 kgm/s

(2) Given;

Initial momentum of the ball at rest, P = mv

where;

m is mass of the ball = 1 kg

v is velocity of the ball = 0 (at rest)

P = 1 x 0 = 0

Initial momentum of the ball in motion = 24 kgm/s

The total momentum of the system = 0 + 24 kgm/s = 24 kgm/s

Thus, the total momentum of the system remains the same while the momentum of each ball changes after collision, because the ball at rest had zero momentum at initial but changed to 24kgm/s after collision.

The momentum of each ball changes, and the total momentum stays the same.

3.

mass of first object m₁ = 1.5 kg

common velocity of both objects after collision, v = 50 m/s

total momentum of the system, P = 250 kgm/s

let the mass of the second object = m₂

v(m₁ + m₂) = P

v(m₁ + m₂) = 250

50(1.5 + m₂) = 250

1.5 + m₂ = 250 / 50

1.5 + m₂ = 5

m₂ = 5 - 1.5

m₂ = 3.5 kg

Answer:

Quick check: D, A, C, D, C

Explanation:

The force is acting in the +K direction since it is perpendicular to both the velocity and the magnetic field. Force on electron = 3.08 x 10⁻¹⁷ N

Current I = 26 A

Electron velocity V = 4.77 x 10 m/s

Distance r = 1.3 cm

= 1.3 x 10⁻² m 1.

Find the magnetic field:

Formula used to calculate magnetic field is:

B= μ0×I2πr

Where, μ0 = 4π×10⁻⁷B

= μ0×I2πrB

= 4π×10⁻⁷×26 2π×1.3×10⁻²B

= 2.02 × 10^-5 T2.

Find the force acting on the electron, when it moves in the direction directly away from the wire:

Formula to calculate force on electron is:

F= qVBsinθ

Where,F = Force acting on electron

V = Velocity of electron

B = Magnetic field

q = charge of an electron

θ = Angle between the direction of motion of an electron and direction of the magnetic field that, the electron is moving in a direction directly away from the wire, so it is moving perpendicular to the wire.

Therefore, θ = 90 degrees.

So the force can be calculated as:

F= qVB sin 90

F= qVB

Therefore,F = 1.6×10⁻¹⁹×4.77×10×2.02 × 10⁻⁵

F = 3.08 x 10⁻¹⁷ N3.

Find the force acting on the electron, when it moves in the direction parallel to the wire in the direction of the current:

the electron is moving parallel to the wire, so the angle between the direction of motion of the electron and direction of the magnetic field is 0 degrees.

So the force can be calculated as:

F= qVBsinθ

F = 0N₄.

Find the force acting on the electron, when it moves in the direction perpendicular to the wire and tangent to a circle around the wire in the +J direction:

Here, the angle between the direction of motion of the electron and direction of the magnetic field is 90 degrees.

So,θ = 90 degrees

Therefore, the force on the electron can be calculated as:

F= qVB sin 90

F= qVB

Therefore,F = 1.6×10⁻¹⁹ ×4.77×10×2.02 × 10⁻⁵ F

= 3.08 x 10⁻¹⁷ N

The force is acting in the +K direction since it is perpendicular to both the velocity and the magnetic field.

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Answer:

Explanation: F = m * a F = 20 kg * 3 m/s 2 F = 60 N Newtons are a derived unit, equal to 1 kg-m/s². In other words, a single Newton is equal to the force needed to accelerate one kilogram one meter per second

Answer:

Explanation:

According to the NASA, astronomers can estimate how old the universe is by comparing the age of the oldest stars and the rate of expansion of the universe. The rate of expansion of the universe is based on the Big Bang theory and it states that our universe is continuously expanding since it first developed. Astronomers measure Cosmic Microwave Background radiation resulting from the Big Bang.

Answer:

Patterns of background radiation

Explanation: well astronomy states that they are able to tell by the radiation gaps

Answer:

100 ml de una disolucion 05 M de sulfate de vivre

Blue light has a greater frequency and carries more energy than red light when compared.

Electromagnetic frequencies that can be seen by human eyes make up visible light. This spectrum excludes ultraviolet and infrared radiation. The wavelengths and frequencies that an object reflects determine the colours we see. Both waves and particles of light exist. It has wave characteristics like amplitude, period, wavelength, and frequency.

The number of times a wave completes a cycle each second is known as its frequency. Hertz, or cycles per second, is the unit of measurement (Hz).

There is more energy in the light the higher the frequency. As a result, its wavelength shrinks.

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Answer:

Explanation:

The speed of the wave given only it's frequency and wavelength can be found by using the formula

\(c = f \times \lambda\)

where

c is the velocity of the wave in m/s

\( \lambda\) is the wavelength in m

f is the frequency in Hz

From the question we have

c = 8 × 24 = 192

We have the final answer as

Hope this helps you

The magnitude of the acceleration of the dog toward the man is  6 m/s².

The magnitude of the acceleration of the dog toward the man is calculated by applying the principle of conservation of linear momentum as follows;

momentum of the man = momentum of the dog

m₁u = m₂v

where;

Since velocity and acceleration are directly proportional, the new equation becomes;

m₁a₁ = m₂a₂

a₂ = ( m₁a₁  ) / (m₂)

a₂ = ( 80 x 4.5 ) / ( 60 )

a₂ = 6 m/s²

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Answer:

96.8 or 97 pounds if you need to round

Explanation:

To convert kilograms to pounds you multiply the kilogram with 2.2. So 44kg × 2.2 equals to 96.8 but if you round it turns to 97.

The best reason to put a visible-light telescope in space instead of on the ground is that the telescope is above the atmosphere so the light does not get distorted by turbulent air.

This means that images taken by space telescopes are much clearer and more detailed than those taken by ground-based telescopes.

Additionally, space telescopes are not affected by weather conditions or light pollution, which can also impact the quality of images taken by ground-based telescopes. Space telescopes can be larger than those on the ground, and they are not affected by earthquakes.

Overall, the lack of atmospheric interference is the biggest advantage of using a space telescope for visible-light observations.

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Gliders are propelled along an air track by a force. The \s200

The g spring is crushed between the gliders. How much pressure does the spring put on gliders A and B?

Glider A weighs 400g.

Glider B's weight is 600g

There is very little friction as the gliders are on the track. As a result, everything accelerates continuously.

replacing the specified data in the equation

Changing the value of the equation to reflect the provided data

The spring's force on glider A is directed in the opposite direction from the outside force

Apply the knowledge (part b) The gliders are on the air track, and there is little friction.

B's right glider's mass,

right spring mass, outside force. There is very little friction as the gliders are on the track. As a result, everything accelerates continuously.

This force is a result of the glider B's spring.

replacing the specified data in the equation

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Answer:

it A texture and colour I

Explanation:

I just did this

Answer:

Shapes and space

Explanation:

3D crafts use shapes and space.

The purpose of space: Distance, area, volume; physical space independent of what occupies it; absolute space.

The purpose of shapes: Positive and negative

Positive shape is the totality of the mass lying between its contours; in three-dimensional work, the visible shape or outer limit of a form changes as the viewer's position is changed. These outer limits are seen as shapes moving back and forth between major contours.

Negative space is empty space defined by a positive shape. Sometimes referred to as occupied and unoccupied space.

The intermolecular forces present in water include hydrogen bonding and dipole-dipole interactions.

Water is a polar molecule, meaning it has a positive and a negative end due to an uneven distribution of electron density. This polarity gives rise to intermolecular forces that hold water molecules together.

One of the intermolecular forces present in water is hydrogen bonding. Hydrogen bonding occurs when a hydrogen atom, which is covalently bonded to an electronegative atom (in this case, oxygen), is attracted to another electronegative atom (such as oxygen or nitrogen) in a different molecule. In water, the oxygen atom of one water molecule forms a hydrogen bond with a hydrogen atom of a neighboring water molecule. Hydrogen bonding is a strong intermolecular force and contributes to many of the unique properties of water, such as its high boiling point and surface tension.

In addition to hydrogen bonding, water also exhibits dipole-dipole interactions. Dipole-dipole interactions occur between the positive end of one polar molecule and the negative end of another polar molecule. In water, the positive hydrogen end of one water molecule is attracted to the negative oxygen end of a neighboring water molecule. These dipole-dipole interactions are weaker than hydrogen bonds but still contribute to the overall intermolecular forces present in water.

Other intermolecular forces, such as ion-dipole interactions and London dispersion forces, are not as significant in water compared to hydrogen bonding and dipole-dipole interactions. Ion-dipole interactions occur between an ion and the charged end of a polar molecule, while London dispersion forces arise from temporary fluctuations in electron distribution. While these forces may exist in other substances, they play a relatively minor role in the intermolecular forces of water.

In conclusion, the intermolecular forces present in water are primarily hydrogen bonding and dipole-dipole interactions. These forces contribute to the unique properties and behavior of water as a liquid.

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Answer:

A thought experiment is an experiment carried out only in the imagination

Explanation:

Answer:2 seconds

Explanation:

g=10m/s2

h=20m

t=h/g

t=20/10

t=2s

Answer:

The deltoid muscle is a large triangular shaped muscle associated with the human shoulder girdle, explicitly located in the proximal upper extremity.

Explanation:

Answer:

3.6263736 * 10^-11 m

Explanation:

Considering the following equation,

λ = \(\frac{h}{mv}\)

where h = 6.6 * 10^-34 and m = mass, and v = velocity

λ = (6.6 * 10^-34)/(2 * 10^7 * 9.1 * 10^-31)

= 3.6263736 * 10^-11 m

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The correct terms that fills the box are;

(i) The incident ray

(ii) The normal

(iii) The reflected ray

(iv) The angle of incident

(v) The reflected angle

The terms of the ray diagram is illustrated as follows;

(i) This arrow indicates the incident ray, which is known as the incoming ray.

(ii) This arrow indicates the normal, a perpendicular line to the plane of incidence.

(iii) This arrow indicates the reflected ray; the out going arrow.

(iv) This the angle of incident or incident angle.

(v) This is the reflected angle or angle of reflection.

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Answer:

Photons have no mass, they do have energy, and the gravity of a black hole (or any other gravitating body) will attract them.

Explanation:

is that what you wanted?

The intensity of the sound you hear at a distance of 280cm away from the tuning fork is 7.72 x 10⁻⁶ W/m².

The power carried by sound waves per unit area in a direction perpendicular to that area.

It is defined as the ratio of power and area.

I = P / 4πr²

Given is the radius 280 cm =  2.8 m and power 7.6 x 10⁻⁴ watt, then the sound intensity is

I =  7.6 x 10⁻⁴ / (4 x 3.14 x 2.8²)

I = 7.72 x 10⁻⁶ W/m²

Thus, the intensity of the sound you hear at a distance of 280cm away fr0om the tuning fork is 7.72 x 10⁻⁶ W/m².

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The mass of the rock is approximately 86.304 tons.

To convert the mass of the rock from grams to tons, we can use the conversion factor that 1 ton is equal to 907.2 kilograms.

Mass of the rock = 7.84 x 10^7 grams

To convert grams to kilograms, we divide by 1000:

Mass in kilograms = (7.84 x 10^7 grams) / 1000 = 7.84 x 10^4 kilograms

Now, to convert kilograms to tons, we divide by 907.2:

Mass in tons = (7.84 x 10^4 kilograms) / 907.2 = 86.304 tons

Therefore, the mass of the rock is approximately 86.304 tons.

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