Which amateur radio stations may make contact with an amateur radio station on the International Space Station (ISS) using 2 meter and 70cm band frequencies

The frequency of the wave is the inverse of time period. Here, the period of the wave is 10 seconds. Hence, the 0.4 Hz.

Frequency of a wave is the number of wave cycles per unit time. Frequency is the inverse of the time period of the wave. Hence, it has the unit of s⁻¹ which is equivalent to Hz.

The higher frequency of a wave indicates more number of wave cycles in a short time. Frequency is directly proportional to the energy and inversely proportional to the  wavelength.

Given the time period of the wave = 10 seconds

then frequency = 1/10 s = 0.1 Hz.

Therefore, the frequency of the wave is 0.1 Hz.

Find more on frequency:

brainly.com/question/14316711

#SPJ9

Your complete question given below:

When a crest of the wave passes point P, a watch reads 0 s. When the next crest passes point P, the watch reads 10 s. What is the frequency of the wave ?

2mv is the magnitude of the impulse delivered by the wall to the ball.

What is Velocity ?

Velocity is a vector quantity that describes the rate of change of an object's position. It is equal to the displacement of an object divided by the time interval over which the displacement occurred. Velocity has both magnitude and direction, and its units are typically meters per second (m/s). The velocity of an object can change over time due to acceleration, and if an object is moving in a circular path, it also has a component of velocity perpendicular to its direction of motion, known as centripetal velocity.

Impulse = change in momentum

J = m(v - u)

  = m(v-(-v))

J = 2mv

To learn more about Velocity, click the given link,

https://brainly.com/question/19979064

#SPJ4

Answer:    

   1. The death penalty should be abolished.

   2. Human cloning should be legalized.

   3. All drugs should be legalized.

   4. Animal testing should be banned.

   5. Juveniles should be tried and treated as adults.

   6. Climate change is the greatest threat facing humanity today.

   7.  Is There Life After Death?

   8. Is Evolution or Creationism the Truth?

Explanation:

Answer:

D, the weight

Explanation:

Normal force is mass times gravity

gravity help determines weight

Also a,b and c are all vectors and D is a scaler

For long-distance CW (Continuous Wave) and SSB (Single Sideband) contacts on VHF (Very High Frequency) and UHF (Ultra High Frequency) bands, the commonly used antenna polarization is horizontal polarization.

Horizontal polarization refers to the orientation of the electromagnetic waves' electric field component, which is parallel to the Earth's surface.

This polarization is typically preferred for long-distance communication because it helps minimize the effects of signal reflections and interference caused by natural and man-made obstacles.

When communicating over long distances, horizontal polarization helps in achieving better ground wave propagation and reduces the impact of signal absorption by vegetation, buildings, and other objects. It also helps in reducing multipath interference, where signals can bounce off various surfaces and reach the receiver through different paths, causing signal degradation.

While horizontal polarization is generally favored for long-distance VHF and UHF communication, it's important to note that there can be exceptions or variations in specific situations. Factors such as terrain, antenna height, atmospheric conditions, and local regulations can influence the choice of antenna polarization.

Therefore, it's always advisable to consult local hams and reference sources for the most accurate and up-to-date information regarding antenna polarization in your specific location.

know more about electromagnetic waves'  here

https://brainly.com/question/8553652#

#SPJ11

Answer:

what do u mean?

Explanation:

Answer:

But where is the a Question???

Answer:

smaller

Explanation:

Water have more evaporation

Answer:

her displacement s=337.5m

Explanation:

check out the above attachment ☝️

Displacement after 15.0 seconds s= 337.5 m

The rate of change of velocity is called acceleration.

Acceleration. speed is the charge of the exchange of displacement. Acceleration is the charge of the exchange of speed. velocity is a vector quantity because it consists of each significance and direction. Acceleration is also a vector quantity as it's far just the fee of alternate of pace.

Acceleration of 3.0 m/s²

Time= 15.0 seconds

S= ut + 1/2 at²

S = 0+0.5*3*15*15

 =337.5 m

Learn more about acceleration here:-https://brainly.com/question/460763

#SPJ2

Hi there!

We can use the following:

U (Gravitational Potential Energy) = mgh

m = mass of object (kg)

g = acceleration due to gravity OR gravitational field strength

h = height, or displacement (m)

ΔU = Uf - Ui, so:

Uf = 3 × 1.5 × 10 = 45 J

Ui = 3 × 0 × 10 = 0

ΔU = Uf - Ui = 45 - 0 = 45 J

Answer:

Explanation:

Let the potential difference between the middle point and one of the plate be ΔV .

electric potential energy will be lost and it will be converted into kinetic energy .

Electrical potential energy lost = Vq , where q is charge on charge particle .

For proton

ΔV× q = 1/2 M V² ( kinetic energy of proton )

where M is mass and V be final velocity of proton .

For electron

ΔV× q = 1/2 m v² ( kinetic energy of electron  )

where m is mass and v be final velocity of electron . Charges on proton and electron are same in magnitude .

As LHS of both the equation are same , RHS will also be same . That means the kinetic energy of both proton and electron will be same

1/2 M V² =  1/2 m v²

(V / v )² = ( m / M )

(V / v ) = √ ( m / M )

In other words , their velocities  are  inversely proportional to square root of their masses .

An object in motion, such as a car or a bird, has kinetic energy but not potential energy.

An object in motion has kinetic energy, but it doesn't necessarily have potential energy. Potential energy is the energy that an object possesses due to its position in a gravitational field or an electric field. An object that has the potential to move, but isn't moving, has potential energy. However, if an object is already in motion, it doesn't have the potential to move, and hence it doesn't have potential energy. This is because potential energy is directly proportional to an object's position or height above a surface with a gravitational or electric field.For instance, when a car is traveling down a road, it has kinetic energy, which is proportional to its mass and velocity, but it doesn't have potential energy because it's not at any height or position above the ground that can produce potential energy. Similarly, a bird that's flying through the air has kinetic energy because it's in motion, but it doesn't have potential energy because it's not above the ground or any surface with a gravitational or electric field.

For more question  kinetic energy

https://brainly.com/question/8101588

#SPJ8

Answer:

Hope it helped brainiest plz and thank you!!!!!!1

Explanation:

3. If humans could unleash genetic modifications upon mosquitos that would eradicate the species entirely, should they do it?

No, they should not eradicate the mosquitos because they are part of the food chain for some animals.

Answer: All of the above.

Explanation:

c) 6,000 ft MSL is the approximate base of the cumulus clouds if the surface air temperature at 1,000 ft MSL is 70 F and the dewpoint is 48 F.

This is the mean elevation of the ocean's surface. The accumulation of water from melting land-based glaciers and glaciers, as well as the augmentation of seawater as it warms, are the primary causes of global mean sea level rise.

The Kanchenjunga peak has been India's tallest mountain, rising over 8.5 thousand meters above sea level. It has five peaks and borders Nepal and India. This one was preceded by Nanda Devi, who stood at approximately 7.8 thousand meters.

MSL is an abbreviation for mean sea level. It is used as one of many altitude determinants by both aircraft and drone pilots. It is, however, not a standard measure that defines the space above.

Learn more about mean sea level here:

https://brainly.com/question/30057196?referrer=searchResults

#SPJ4

If the magnetic field strength varies, we cannot make any conclusive statements about the proton's speed at point 2 compared to point 3 without additional information.

To answer this question, we need to understand the context of point 2 and point 3. Without further information, we cannot determine the specific speeds at these points. However, we do know that the proton's speed will change as it moves through a magnetic field due to the Lorentz force. This force is proportional to the velocity of the particle and the strength of the magnetic field.

Therefore, if the magnetic field strength is constant, the proton's speed will be higher at point 2 if it was accelerated from point 1, and will be lower at point 2 if it was decelerated from point 3. On the other hand, if the magnetic field strength varies, we cannot make any conclusive statements about the proton's speed at point 2 compared to point 3 without additional information.

Learn more about magnetic field strength here:-

https://brainly.com/question/11462606

#SPJ11

A shaded pole is a short-circuited winding, which consists of a single turn of copper wire and acts on only a portion of the stator windings.

Most single-phase motors just require the two start leads to be switched in order to turn the rotor in the opposite direction.

An AC motor that starts using a shaded stator pole. A partial short-circuited winding that affects only some of the stator windings, made up of a single turn of copper wire.

The motor is momentarily changed into a two-phase motor during the starting time to get around this problem and make it self-start. A single-phase motor’s stator is equipped with an additional winding, referred to as the starting winding, for this function (or auxiliary).

To know more about shaded pole Visit:

https://brainly.com/question/4480551

#SPJ4

Mountains, tops of buildings, and high-flying aircraft are all part of Earth's atmosphere, no matter how high they are. On the other hand, space doesn't belong to our atmosphere, it is outside of it. Having this in mind, the best location to place a telescope used to observe x-rays from stars is in space.

A telescope is an optical instrument that uses lenses, curved mirrors, or a combination of both to observe distant objects, or a variety of devices that emit, absorb, or reflect electromagnetic radiation to observe distant objects.

You can get started for less than $200. Once your budget exceeds $400, you will be able to purchase very capable telescopes. When you spend $600 or more, the scopes become more powerful and feature-rich.

The telescope made its debut in the Netherlands. The national government in The Hague discussed a patent application for a device that aided in "seeing faraway things as if they were nearby" in October 1608, according to the national government. It was made up of a convex and concave lens housed in a tube. Objects were magnified three or four times by the combination.

To know more about telescope follow the link:

https://brainly.com/question/18300677

#SPJ4

We have discovered meteorites with ALL of the following sources, EXCEPT one being a piece of the comet Halley, among the identified meteorites.

Our solar system is where all meteorites originate. Most of them are pieces of ancient asteroids that shattered into smaller pieces in the asteroid belt, which is situated between Mars and Jupiter.

Asteroids are remains of the solar system's creation, which occurred around 4.6 billion years ago. Early on, the formation of Jupiter stopped any planetary bodies from forming in the space between Mars and Jupiter, causing the small particles that were already present to smash and shatter into the asteroids we know today.

To know more about asteroids visit:-

https://brainly.com/question/19148674

#SPJ4

Answer:

3.3×10⁻⁹ kg/s

Explanation:

There are two forces on the particle: weight force pulling down and drag force pushing up.  At terminal velocity, the speed is constant, so the acceleration is zero.

∑F = ma

bv − mg = 0

b = mg / v

b = (10⁻¹³ kg) (9.8 m/s²) / (3×10⁻⁴ m/s)

b = 3.3×10⁻⁹ kg/s

The advantage that the Hubble Space Telescope has over ground-based telescopes is A. There is no blurring due to the atmosphere.

This is because the Hubble is located above Earth's atmosphere and is not affected by atmospheric distortions that can blur images captured by ground-based telescopes. Additionally, option B is also correct as the weightlessness of the telescope allows for a larger mirror to be used, which enhances its capabilities. However, option C and D are incorrect as the Hubble's proximity to celestial objects and being always in darkness are not advantages but rather inherent characteristics of its location in space.

Because the Hubble Space Telescope does not possess the biggest mirror ever constructed, option B is incorrect. Although its primary mirror's diameter of 2.4 meters (7.9 feet) was deemed enormous at the time of its launch, later ground-based telescopes have been constructed with larger mirrors.

To know more about Hubble Space Telescope, click here;

https://brainly.com/question/30246219

#SPJ11

Answer:

Distance travel s = 296.8 m

Explanation:

Given:

Initial velocity u = 6.5 m/s

Constant acceleration a = 2.1 m/s²

Time T = 14 s

Find:

Distance travel s

Computation:

s = ut + (1/2)at²

s = (6.5)(14) + (1/2)(2.1)(14)²

s = 91 + 205.8

Distance travel s = 296.8 m

Answer:

His journey took him 3 hours 15 minutes.

Explanation: 4 miles every hour. So 1 hr is equal to 4 miles, 2 hrs is equal to 8 miles, 3 hrs is equal to 12 miles. Now he just has 1 miles left, and since it takes him a hour to cycle 4 miles, 60 divided by 4 is 15. Therefore, 1 mile is equal to 15 minutes.

Time = (distance) / (speed)

Time = (13 mi) / (4 mi/hr)

Time = 3.25 hr  or  3hr 15min .

Answer:

D

Explanation:

i do not know how to explain my answer

Explanation:

F = ma

213 N = 21.4 kg * a

a = 213 / 21.4 = 9.95 m/s^2

Answer:

4.3 x 10^16 kg

Explanation:

M = rv^2/G =[90,000 x 5.66^2] / [6.67 x 10^-11]

M = 43,226,446,776,611,694 = 4.3 x 10^16 kg - Ida's mass.

Answer:

Explanation:

the person on top of me was correct 4.3 10^16 i have it in my notes from when i was in school :) so they are right

Sensory memory it stores sensory input in its raw form for a very brief duration; essentially long enough for the brain to register and start processing the information, Working memory is the component of memory in which current conscious mental activity occurs,  Long-term memory is also known as permanent memory.

The three components of memory described in the provided statements are:

To learn more about Sensory memory visit: https://brainly.com/question/1147955

#SPJ11

Answer:

The correct answers are 2, 4

Explanation:

The dispersion of light occurs due to the interaction of electromagnetic radiation with matter, let's analyze the phenomenon, when a ray of light reaches a particle is absorbed and subsequently re-emitted in all directions, for radiation of lower wavelength (higher frequency ) the highest absorptions and therefore the missionary also the highest; An example of this is the blue light from the atmosphere, which is the absorption of blue light and its subsequent re-emission

Based on this explanation, the dispersion in gas particles or molecules is proportional to the frequency of the light (inversely proportional to the wavelength) and is also proportional to the number of dispersing particles in the air, that is, to the total volume of the particles. dispersers.

The correct answers are 2 and 4

Answer:

f = 2445 Hz

Explanation:

i did the quiz

The frequency that the driver (observer) detects is equal to 1008 Hz

Given the following data:

To calculate the frequency that the driver (observer) detects, we would apply Doppler's effect of sound waves:

Mathematically, Doppler's effect of sound waves is given by the formula:

\(F_o = \frac{V \;+ \;V_o}{V\; - \;V_s} F\)

Where:

Substituting the given parameters into the formula, we have;

\(F_o = \frac{343 \;+ \;20}{343\; - \;20} \times 900\\\\F_o = \frac{363}{323} \times 900\\\\F_o = 1.12 \times 900\\\\F_o =1008 \;Hz\)

Driver (observer) frequency = 1008 Hz

Read more: https://brainly.com/question/23460034

Kinetic energy refers to the energy possessed by an object due to its motion. The formula for kinetic energy is given as follows: Kinetic energy = 1/2 × mass × velocity², Where: mass = the mass of the object, velocity = the speed of the object.

We can equate the kinetic energies of the car and truck using the formula above. Let's assume that the speed of the car is v. Therefore, we can write:1/2 × 1800 × v² = 1/2 × 1.80×10⁴ × (25/3.6)², Where:25/3.6 is used to converting the speed of the truck from km/h to m/s.

Simplifying the right-hand side of the equation, we get:1/2 × 1.80×10⁴ × (25/3.6)² = 781250 J.

Now, we can solve for v by dividing both sides of the equation by 1/2 × 1800:1/2 × 1800 × v² = 781250v² = 781250 ÷ 900v² = 868.056v ≈ 29.47 m/s.

Therefore, the speed at which an 1800 kg compact car has the same kinetic energy as a 1.80×10⁴ kg truck going 25.0 km/h is approximately 29.47 m/s.

Learn more about Kinetic energy here ;

https://brainly.com/question/999862

#SPJ11

The  option b, 160 to 167 degrees F, is likely the correct answer.

The primary goal of laundering healthcare linens is to remove soil and microbial contamination to prevent the spread of infections. The temperature of the wash water is a critical factor in achieving this goal because it directly affects the effectiveness of the cleaning and disinfection process.

According to the CDC guidelines, the minimum wash water temperature for processing healthcare linens is 160 to 165 degrees Fahrenheit (71 to 74 degrees Celsius). This temperature range is based on the fact that most bacterial pathogens and viruses are killed at temperatures above 160 degrees Fahrenheit.

It is important to note that different types of healthcare linens may have different temperature requirements based on their fabric type and level of contamination. For example, some delicate fabrics may require lower temperatures to prevent damage, while heavily soiled linens may require higher temperatures to ensure effective cleaning.

In addition to temperature, other factors such as the duration of the wash cycle, detergent selection, and mechanical action are also important in achieving effective cleaning and disinfection of healthcare linens. Proper training and adherence to established laundry protocols are essential to ensure that healthcare linens are processed safely and effectively.

Visit to know more about Degrees:-

brainly.com/question/30403835

#SPJ11